[peace)final dissertation
TRANSCRIPT
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Value creation of thebanking M&A cases:
Event studies
Submitted by
Pyung-hwa Son
BSc Investment & Financial Risk Management
Supervisor: Dr Elena Kalotychou
1
st
April 2010
I certify that I have complied with the guidelines on plagiarism outlined in my
Course Handbook in the production of this dissertation and that it is my own,
unaided work
Signature:
______________________________________________________________
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Acknowledgements
I would like to give many thanks to Dr. Elena Kalotychou for her kind guidance and critical
suggestions throughout the completion of this dissertation.
Also, I would always like to thank my precious family and friends who encourage, support
and love me all the times during my life.
I love you all and you are appreciated.
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Table of Contents
-Acknowledgements....1
-Contents ....2
-List of tables and graphs.....4
-Abstract.....6
1. Introduction..8
2. Characteristics of M&A
.....10
2.1. Definition..10
2.2. Motivations10
2.2.1. Growth10
2.2.2. Synergy...11
2.2.3. Diversification12
2.2.4. Other motives.13
2.3. Classification of transaction type..13
2.3.1. Horizontal merger...14
2.3.2. Vertical merger...14
2.3.3. Conglomerate merger.14
2.4. Reasons for failure in M&A..15
3. Literature review..15
3.1. Return to the shareholders of acquiring companies..16
3.2. Return to the shareholders of target companies16
3.3. Types of payment..17
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4. Data and methodology18
4.1. Data descriptions...18
4.2. Event study18
4.3. Financial ratios..21
4.4. Efficient Market Hypothesis.21
5. Empirical case studies.22
5.1. General banking and finance industries22
5.1.1. Industry situation and rationale for M&A..22
5.1.2. Results and discussions in the acquiring companies..23
5.1.3. Results and discussions in the target companies28
5.2. Bank of America Corp. and FleetBoston Financial Corp.32
5.2.1. Company overview and rationale for M&A...32
5.2.2. Results and discussions..33
5.2.3. Profitability ratios analysis.36
6. Conclusion...38
-References...40
-Appendices .....43
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List of tables
Table 1: AAR and CAAR of the acquiring companies....23
Table 2: AAR and CAAR of the Domestic/Cross border deals...25
Table 3: AAR and CAAR of the Cash/Stock/Mix deals..26
Table 4: AAR and CAAR of the target companies..28
Table 5: AAR and CAAR of the Domestic/Cross border deals...29
Table 6: AAR and CAAR of the Cash/Stock/Mix deals..31
Table 7: AR and CAR of the Bank of America...33
Table 8: AR and CAR of the FleetBoston Financial Corp...34
Table 9: Profitability ratios of the Bank of America....36
Table 10: Profitability ratios of the peer companies................36
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List of graphs
Graph 1: AAR of the acquiring companies..24
Graph 2: CAAR of the acquiring companies...24
Graph 3: AAR of the Domestic and Cross border deals......25
Graph 4: CAAR of the Domestic and Cross border deals26
Graph 5: AAR of the Cash, Stock and Mix deals27
Graph 6: CAAR of the Cash, Stock and Mix deals..27
Graph 7: AAR of the target companies28
Graph 8: CAAR of the target companies.29
Graph 9: AAR of the Domestic and Cross border deals..30
Graph 10: CAAR of the Domestic and Cross border deals..30
Graph 11: AAR of the Cash, Stock and Mix deals......32
Graph 12: CAAR of the Cash, Stock and Mix deals....32
Graph 13: AR of the Bank of America.34
Graph 14: CAR of the Bank of America..34
Graph 15: AR of the FleetBoston Financial Corp....35
Graph 16: CAR of the FleetBoston Financial Corp.35
Graph 17: ROA of the Bank of America and Peer companies.....37
Graph 18: ROE of the Bank of America and Peer companies.....37
Graph 19: NIM of the Bank of America and Peer companies.........38
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Abstract
The objective of this dissertation is to examine that mergers in the banking industry sector
indeed do create extra values to shareholders in general.
Since few decades ago, M&A activities have increased dramatically, and accordingly,
investigation of abnormal returns to shareholders wealth for both the acquiring and target
companies are much more than issues now. Thus, this dissertation will analyze general
representative M&A cases in banking industry sector in order to find out the characteristics,
trend and behaviour of the recent M&A deals.
The pre and post-merger impact on corporate performances and stock prices will beinvestigated with Event study methodology which considered as a norm process when
evaluating the reaction of the firms to the merger announcement. More specifically, thirty
merger cases in banking industry sector will have short-term analysis by focusing on AAR
and CAAR especially in the event windows of (-2, +2) and (-40, +40) respectively, thus,
could identify market efficiency and reactions.
Therefore the case studies will be analyzed mainly based on three perspectives;
Abnormal Returns and simultaneous market reactions on the announcement date Cumulative Abnormal Returns and investment decision during event period Change in financial ratios over three years time period of pre and post-merger
So, taken as a whole, this dissertation will display; the fundamental characteristics,
motivations and reasons for failures in M&A, a review of the relevant literatures and
evidences found around this subject from previous studies, the sources of data and
methodologies that I used, which are event study, financial ratios analysis. Then, the general
thirty empirical merger case studies from banking industry sector will be followed with
analysis of industry situation, rationale for M&A and their pre and post-merger stock
performances under different categories which are types of payment and country of bid
occurred.
Afterwards, one specific case study will be conducted more deeply that is the deal between
Bank of America Corp. and FleetBoston Financial Corp. with the analysis of company
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overview, their rationale for M&A, pre and post-merger stock performances and the change
in financial ratios over time period of three years before and after.
In the last conclusion part, overall findings from the analysis will be discussed to match with
objectives of this dissertation, also limitation of this analysis and the rules of successful
M&A which can improve the quality of deals will be recommended with references and
appendices followed at the end.
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1. Introduction
Since first merger wave of 1897-1907 which was followed the economic recession of 1883,
merger activities have occurred in cyclical patterns. Majority of mergers during first merger
wave period, were horizontal merger and had the conventional monopoly behaviour. Up until
2000, there were four more merger waves which developed from simple forms of monopoly
to oligopoly and conglomerate in 20th century with more vertical mergers than horizontal
mergers. Afterwards, sixth merger wave started at economic recovery state, from deep
economic recession which was in 2002 and it had lasted until the end of 2006 with more
sophisticated ways of international takeover, Leveraged Buy Out, Management Buy Out and
many other forms in 21st century now. At the moment, a new merger wave may be forming
with relatively cheap stock prices of almost companies, which means, we are standing at the
beginning of new merger wave after experiencing of turmoil financial crisis which was at
2007 and 2008, just like we had a similar cyclical pattern in previous periods.
Banking industry always has been in the centre of merger moves, since due to the
characteristics of industry, it is vulnerable to the changes in economy, politics, regulation and
other competitive environment of the financial services industry. In result, consolidation in
banking industry has been growing dramatically because of tremendous risk exposure of
bankruptcy and veiled threats of takeover from other competitors. Rather than being pushed
to insolvency or go bankrupt, the best strategy for financially unstable banks regardless of
their size, is to be bought by other banks or finance conglomerates.
As we are in the midst of massive flows of M&A activities, majority of issues are focusing on
their post-performance and benefit that is, the deals really create additional values to
shareholders wealth. This is because, most research suggests that in the long run, M&A do
not outperform the market, nor create excessive values to shareholders. But, it is often
observable that companies tend to increase their expenditure of huge amounts of money in
provision of M&A, when economy is experiencing recession or they got in troubles. Also, in
most cases, it is revealed that shareholders of acquiring company gain zero returns or
negative returns, whilst those of target Company are experiencing positive returns. These
phenomenon are confirmed by several previous studies, for instance, Mulherin and Boone
[2000], who analyzed 281 M&A deals during 1990-1999 and found significant negative
returns to the acquiring companies, and Dodd [1980], who examined 151 M&A deals from1970 to 1977 and reported positive abnormal returns to the target companies on day (-1, 0).
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Therefore, this dissertation aims to have detailed analysis of M&A cases by conducting event
study and financial ratios analysis, in order to verify the hypothesis of Value creation of
M&A. The main findings can be summarized as follows.
First, the announcement of M&A generally has a significantly negative impact on the
acquiring companies, while has a significantly positive impact on the target companies. These
findings are supported by most of previous studies from Agrawal et al [1992], Mulherin and
Boone [2000], Sudarsanam et al [1996], Dodd and Ruback [1977] and Beitel et al [2002] so
on.
Second, companies which completed mergers with stock payment suffered from negative
returns, while companies which completed with cash payment gained significantly positive
returns and this result is also supported by majority of previous studies.
Third, after the completion of the M&A deals, the acquiring companies normally
underperform in the aspect of profitability. These poor performances in the post merger
period can be attributable to the mean reverting behaviour of stock returns over a long term
period.
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2. Characteristics of M&A
2.1. Definition
In general, the term merger is used when two companies are combined in which one company
survives and keeps going business while the other merged company no longer exists. It is
different from a consolidation, which introduce entire new company as a result of a
combination of two or more companies. However, the terms merger and consolidation are
sometimes used interchangeably and the term merger is more widely applied to combination
of companies regardless of their size.
And an acquisition means one company takes over some parts or entire of the other company
hence, the latter company may not exist as a separate entity or just continue their business
under the same name but with all controls given entirely by the acquiring company.
Therefore, a merger can be described as the combination of two companies into one, where
an acquisition as an act of purchases one company by another. Due to their similar
characteristics, literature represents these terms together as Mergers and Acquisitions.
2.2. Motivations
There are several reasons and motives why companies might engage in M&A. No matter how
important the motive is, the motivations should be given, as boards of directors are conscious
of these procedural matters. Below are main motives that inspire the M&A deals.
2.2.1. Growth
One of the most fundamental motives for M&A is growth. Growth through M&A may have
much quicker process when compared to the speed of their internal growth. Although there
are still uncertainties in the growth of both cases, it becomes less risky through M&A way. If
there are any opportunities in other region or business area, a company needs to clarify the
new market condition first, and then adjust to the new different environment such as language
and culture barriers. [Patrick A. Gaughan, 2002, p111-112]
By acquiring a target company that have the resources and other kinds of management that
they needed, the acquiring company may respond rapidly to violent circumstances and take
more market share. Of course there exists the premium paid for these advantages they get,
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which is the price of the target company, however, eventually will lead to better, quicker
growing company after acquired.
2.2.2. Synergy
Synergy is also considered as most widely used reason for explaining large premiums paid in
most M&A deals, and is the additional value that is generated by combining two companies,
creating opportunities that would not have been available to these companies operating
independently.
This can be expressed simply as:
VA+T = VA + VT
Where VA+T is the value of the combined company and, VA and VT are the values of acquiring
and target company before merged. It is only worth to take the deal, when VA+T is greater or
at least equal to the sum ofVA and VT .
There are two main types of synergy which are operating synergy and financial synergy.
Firstly, operating synergy normally comes from revenue enhancements and cost reductions.
Revenue enhancing operating synergy is defined as a newly strengthened product or service
that is formed by the mix of two different attributes of the merger partners which also,
generates short and long term revenue growth. [Mark N. Clemente and David S. Greenspan,
1998, p46]
Revenue enhancing operating synergy may have many potential sources of which from a
sharing of marketing opportunities. With their existing and new sales distribution channel,
they can sell a larger amount of products and services, thereby enabling the company to
increase its revenues quickly. Revenue enhancing operating synergy is also attainable from
merging with a major company which has popular brand name, by lending its reputation to
the product line of a merger partner. However, they are redeemed much more difficult to
achieve than cost reduction synergies. [Patrick A. Gaughan, 2002, p113-123]
Thus, many of merger manager tend to focus on latter one, and these cost reduction synergies
are normally followed by economies of scale which means reduction in per unit costs that
result from an increase in the size of scale of a companys operations. The economies of scale
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that arose from the merger, hence, allows the combined company to become more cost
efficient and profitable and is often observable from horizontal mergers which have same
businesses. This is also, closely related to the benefits of the economies of scope refers to the
ability of a company to utilize one set of inputs to produce a broader range of products and
services. These operating synergies may affect growth, margin and even value of the
companies involved in M&A. With such reasoning, horizontal and vertical mergers normally
perform better than conglomerate merger, since they are more likely to achieve economies of
scale, economies of scope and are more likely to have complementary resources that they do
not have.
Secondly, financial synergy means reduction in the costs of capital to the acquiring company
after two or more companies are combined and the payoff can take the form of higher cash
flows or lower cost of capital. Financial synergies include lots of benefits such as:
Their debt capacity may increase, since the combined company will have more stable and
predictable earnings and cash flows with less volatility, which in turn, let them to borrow
more amounts with lower interest rates. Also, by acquiring the target company which has
been experiencing net operating losses, above advantages may create tax benefits to the
acquiring company which will save in taxes and increase its value. Besides, when large
companies acquire smaller companies, or when publicly traded firms acquire private
businesses, the financial synergy may come from the projects that undertaken with the excess
cash or cash slack which generated from merger. [Aswath Damodaran, 2006, p542-543]
2.2.3. Diversification
Diversification basically means expanding outside a companys existing industry categories.
By expanding into other industries which are more profitable and less correlated and merging
with company which has imperfectly correlated earnings, the company will have much less
volatile earnings stream, thus could lower their risks involved.
However, only shareholders of the acquiring company can benefit from the diversification in
a less costly way by simply holding well diversified portfolio which is adjusted for their own
preferences. In this case, shareholders do not need to pay the premiums required for mergers,
thus, it is obviously less costly than M&A. Also, the management department of the
acquiring company may go through hard times, since they normally do not have thenecessary skills and abilities to understand and operate entirely new different industry.
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Although diversification is classified as one of the most controversial and dubious reason for
M&A, since it is easier and cheaper only for the shareholders than for the company itself, but
it is also most fundamental motive for the M&A deals as well. [Brealey and Myers, 1996,
p934]
2.2.4. Other motives
Apart from above main motives, there are still plenty of reasons why companies pursue
M&A deals. One may be the improved management. An acquiring company may want to pay
premiums for a target company because of their anticipated gains when they applies their
superior management skills to the target companys resources, since they may believe that
they could gain higher returns than market expected from the target company.
Acquiring companies believe that M&A may accelerate the research and development
process, thus, they could improve their future growth remarkably when compared to their
peer companies. Another motive is, to improve distribution channel through M&A, especially
for the companies that do not have direct access to consumers. These companies have strong
eager for developing direct channels to ensure that their products and services can reach the
ultimate consumer in an efficient manner. And market power has become critical reason for
M&A lately, since achieving a huge market share in competitive business environment is
directly related to their strong brand value and market power which will lead to higher sales
and earnings.
The motives and reasons behind M&A are many and diverse, even though some are sensible
and others are quite dubious. But key point is that all the companies should focus their main
objective of M&A on maximizing shareholders wealth.
2.3. Classification of transaction type
Throughout the years, mergers are often categorized as horizontal, vertical or conglomerate
mergers. However, in the banking industry, the most common types of mergers were
horizontal and vertical mergers, since the companies involved in these types are relatively
easy to take advantage of economies of scale, thus could maximize shareholders wealth.
These three types are explained below.
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2.3.1. Horizontal mergers
Horizontal mergers occur between two direct competitors within the same industry. The
businesses of two merged companies are very closely related, thus, the primary aim of the
merger is to gain sufficient market shares to control the market and obtain operating
synergies through economies of scale. These benefits can be gained by sharing central
management parts such as finance, research and development and marketing so on.
Once two companies are combined, the company will have strong market power and this is
why horizontal mergers are often found in highly concentrated markets which have high
entry barriers and most of the recent mergers belong to this type. However, horizontal
mergers might be regulated by antitrust law, since it has a possibility of creating a monopoly
with its enhanced market power which makes inefficient non-competitive market.
2.3.2. Vertical mergers
Vertical mergers take place between companies at different stages of production operation,
which means the combination of companies that have a buyer-seller relationship. The main
benefits are reduction in costs which incurred from research, transportation and marketing so
on. This reduction in costs from supply expenses that are generated within value chain is
called economies of vertical integration. Hence, some companies are expanding back to the
source of raw materials or forward to the ultimate consumers, in order to get control over the
whole production process.
2.3.3. Conglomerate mergers
Conglomerate mergers are mergers between companies which have unrelated businesses
which means, two companies involved are neither competitors nor a buyer-seller relationship.
The main objective of this kind of merger is to get benefits from a more diversified business
structure which spread out risks, since acquiring company may believe that they can create
additional values from target companys resources with their superior management skills.
This is why the conglomerate mergers were popular at the earlier third merger wave which
was in the 1960-1970. However, the conglomerate mergers type has become less popular
during last decades, since it was only beneficial to the shareholders of an acquiring company
and a conglomerate is often valued at a discount to the sum of its parts which is known as
conglomerate discount.
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2.4. Reasons for failure in M&A
Although, it may look so good of having M&A for many reasons, most research showed that
more than half percent of the M&A deals could not generate any additional values to the
shareholders. Here are some common reasons for failure in M&A deals.
The failure mainly may attributable to the inefficiency of acquiring companys post-merger
management plan and implementation. Simply, they are not prepared for unexpected
procedures which can occur after completion of the deals. What happens in post-merger
period is much more important than just M&A deal itself. When M&A deal is completed, one
of the most difficult steps for the acquiring company is to understand different culture,
environment and personnel. As these are accustomed to the existing behaviour, it is
extremely important to set a detailed integration plan which can cover all the differences in
their operating systems. Also, if the premium paid to the target company was too much to
handle for an acquiring company, there may be less chance that the combined company will
perform effectively with insufficient capital on the behalf of shareholders view. Then, it ruins
the main objective of maximization of shareholders wealth even though the M&A deals
were successful, and this is called winners curse problem.
In most of the M&A deals, managers of acquiring companies have a tendency tounderestimate the costs associated with unexpected events which might occur after the
completion of the deal. And they are over-optimistic about future revenues and benefits,
which makes an M&A deal over-valued and this is why acquiring companies pay a higher
premium than the market expectation. Therefore, acquiring companies should carefully look
whether the M&A deals have an indeed reasonable rationale to proceed or not, otherwise, the
deal might worsen the companys situation rather than create additional values.
3. Literature review
There were many researches carried out in order to investigate the profitability of M&A deals
and these were mainly conducted by event study methodology which compares the change in
the stock price and market reaction for the acquiring and target companies before and after
the merger announcement. Before move on to the empirical analysis part, below are the
previous studies and findings of event study of M&A deals.
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3.1. Return to the shareholders of acquiring companies
Although the evidences are mixed such like Jensen and Ruback [1983] said that gains to the
acquiring companies from mergers are mixed due to difficulties in the measure of post-
merger returns, but most studies verify that returns of acquiring companies are negative in
general.
Agrawal et al [1992] analyzed data range of 1955-1987 and revealed that shareholders of
acquiring companies experience significantly negative returns over five years after the
merger. However, Loughran and Vijh [1997] amended this view by insisting that the model
used by them was inaccurate, and reported that only companies who completed mergers
experience negative returns whereas companies who completed tender offers gain
significantly positive abnormal returns.
Mulherin and Boone [2000] also found significantly negative returns of 0.37% to acquiring
companies after examined 281 M&A deals from 1990 to 1999. This is supported by Datta
and Puia [1995] who researched 112 cross border M&A deals during 1978-1990 and revealed
that cross border M&A deals, on average, bring the negative returns to acquiring companies,
thus, destroying values for shareholders. Sudarsanam et al [1996] who analyzed 429 UK
acquiring companies during 1980-1990, again, found statistically significant negative returns
which has range between -1.26% and -4.04%.
In contrast, Franks et al [1977] analyzed 74 M&A deals in UK between 1955 and 1972 and
found significantly positive abnormal returns to acquiring companies. Moreover, Cakici et al
[1996] analyzed 195 cross border M&A deals during 1983-1992 over the event window of (-
10, +10) and found positive abnormal returns to acquiring companies, and, same results werefound by Conn and Connell [1990] who reported positive abnormal returns to UK and US
acquiring companies during 1971-1980.
3.2. Return to the shareholders of target companies
In general, shareholders of target companies enjoy significantly positive returns, despite
variations in their different conditions of M&A deals, and most of studies support this result.
For instance, Jensen and Ruback [1983] summarized 13 studies of M&A deals during 1977-
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1983 and found evidences of positive returns to the target companies. These returns to be
higher in tender offers than complete mergers, which prove that the premium paid is lower in
friendly mergers.
Dodd and Ruback [1977] also found that shareholders of target companies gain large positive
abnormal returns regardless of type and outcome of the M&A deals by analyzing stock
returns of one month post-merger period after the first announcement. And Dodd [1980]
again, examined 151 M&A deals during 1970-1977 and gained large significantly positive
abnormal returns to the target companies on the day and the day before the announcement.
Moreover, Dennis and McConnell [1986] analyzed 76 target companies during 1962-1980 in
the event period of (-1, 0), and found significantly positive return of 8.56% and similarly in
the same event period of (-1, 0), Beitel et al [2002] gained positive return of 10.48% by
analyzing 98 target companies from 1985 to 2000. Even in the cross border M&A deals, Eun
et al [1996] verified that target companies still experienced significantly positive gains.
3.3. Types of payment
The exchange term in M&A deals has three types which are cash, stock or mixture of the two
and the choice between them is depending on the market condition, tax and financial
strategies so on. Depends on the types of payment, the returns to the shareholders of
acquiring companies vary. The common result came out of previous studies is, companies
which completed stock mergers experienced negative returns while companies which
completed mergers with cash gained significant positive returns and this evidence is
supported by Loughran and Vijh [1997].
Asquith et al [1987] and Travlos [1987] also found similar evidences that deals accomplished
with stock payment suffer from significantly negative returns on announcement day, while
returns to the shareholders of cash deals are zero or slightly positive. This is due to the tax
effects, which in general, capital gains are taxed instantly in cash deals, while capital gains
taxes are deferred until the stocks received are sold in stock deals. Also, this might be due to
the managers perception of the companys stock price. Myers and Majluf [1984] suggested
that companies tend to choose stock deals when the stock is over-valued and on the other
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hand, may pay with cash if the stock is under-valued. The shareholders may recognize the
stocks are over-priced, when the company chooses stock payment.
Thus, most of previous studies clearly suggest that shareholders benefit most from the M&A
cash deal, while they gain smaller returns from other types of payment which are stock or
mixture of them.
4. Data and methodology
4.1. Data descriptions
This dissertation aims to have an analysis of M&A cases in banking industry, therefore, allthe daily data including stock prices, benchmark indices (FTSE All World Index and S&P
500), mergers information and financial ratios of thirty companies are collected from
Bloomberg and all the tables and graphs are my own work from MS excel. For the
benchmark index, FTSE All World Index is selected, since it is most widely used and
includes more than 2700 stocks from 49 different countries, also, it counts for 90-95%
capitalization of each of the markets in US$ terms.
In order to catch the trends of the recent M&A, this dissertation only included M&A deals
announced between January of 2000 and December of 2009. Further, all the deals are friendly
completed and divided into balanced number of subsets, which are 9 cash deals, 12 stock
deals and 9 mixed deals, so as to conduct a fair comparison. Also, 8 cross border deals are
included in order to compare the domestic deals with international deals, thus, could find out
different stock price movement and market reaction.
There are two fundamental methods to measure the performance of M&A deals, which are
event study and financial ratios analysis, and these are explained below.
4.2. Event study
This method is originated from Fama et al [1969], which examines the abnormal returns to
the shareholders in the period close to the announcement date.
For the estimation, the market return model method is used, since it is the most common
method when conducts empirical research on M&A. This model assumes that there is a linear
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relationship between the return on the each stock and that of the market and the equation is
given as,
Rit = i + iRmt + it
Where;
Rit is the return on stock i at time t,
Rmt is the return on FTSE All World Index at time t,
i is the average return of stock i in the period not explained by the market,
i
is the sensitivity of stock i to the market,
it is the residuals
From above equation, the daily returns for each company is calculated as,
Rit =Pit Pit1
Pit1
Where Pit is the price of stock i at time t.
The and coefficients are estimated through the above regression, and this calculation
should include a period which is not involved in the event period, thus, the abnormal returns
are calculated over the estimation period of (-240, -41). After obtaining the and
coefficients estimates, expected returns for each stock can be calculated as,
ERit = i + iRmt
Then, the abnormal returns of stock i under the market return model method are simply the
difference between actual returns and expected returns at time t.
ARit = Rit E(R)it
To investigate the total returns to each company over the event windows, cumulative
abnormal returns (CAR) are calculated as,
CARit,T
=
AR
it
T
t=t
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Hence, CARit,T can be interpreted as the cumulative extra earnings for stock i between time
t and T. The stock returns for each company are quite noisy and fluctuate, however this
problem can be resolved when large number of companies are averaged together. This is
called average abnormal returns (AAR) and AAR for the N number of companies at time tare calculated as,
AARt =1
NARit
N
i=1
The AAR then can be summed together to cover the whole event windows, which represents
the cumulative average abnormal returns (CAAR).
CAAR(t,T) = AARtT
t=t
After obtaining the AAR and CAAR, hypothesis test is conducted with null hypothesis of
AAR or CAAR equals to zero. By conducting the hypothesis test, the creation of significantly
positive or negative return can be verified. Although under financial circumstances, the
distribution of stock returns tends to have fat tails and is skewed, here, normal distribution is
assumed since we have got enough number of companies to ease the complexity.
Test-statistics for AAR and CAAR are given by,
AARt =AARt
AAR 241,41
CAAR(t,T) =CAAR(t,T)
AAR (241,41) number of cumulative days
Where AAR 241,41 is the standard deviation for the AAR for the estimation period of
(-241, -41).
The confidence level of 95%, which is same as 5% significance level, is used to judge the
significance of null hypothesis. Hence, if the absolute value of the test-statistics is greater
than1.96, the null hypothesis of zero abnormal return is rejected which implies there existsignificant abnormal returns either positive or negative.
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4.3. Financial ratios
It measures the overall financial results of the companies, which include income statement,
balance sheet and other financial statements. In order to judge the success of the M&A deals,
it is vital to oversee performance change in ratios, and this dissertation mainly focuses on
profitability ratios since it is directly related to the shareholders wealth.
Profitability ratios measure the whole operating performance of the companies and can be
measured by some representative ratios such as return on assets (ROA), return on common
equity (ROE) and net interest margin (NIM). Briefly, ROA is the returns earned from the
assets financed by companies, thus, it indicates how efficiently companies are operated with
given assets and resources. ROE measures how much profits a company generates with the
funds that shareholders have invested. More importantly, NIM shows average interest margin
that the companies are receiving from borrowing and lending funds, thus, it is a critical ratio
especially for banks. These profitability ratios can be calculated as,
Return on Assets =Net Income
Total Assets
Return on Equity =Net Income
Shareholders Equity
Net Interest Margin =Total Interest Income Total Interest Expenses
Total Earning Assets
4.4. Efficient Market Hypothesis
The Efficient Market Hypothesis (EMH) is a statement about how an assets price should
react to sudden new information. This is a critical theory for the assessment of value creation
of the M&A deals, since a fluctuation of the stock prices are fairly dependent upon the
market reaction and both are quite closely related.
Fama [1970] suggested that a market is efficient, when prices fully and instantaneously
reflect available information. If so, investors can only earn an average return depending on
their risk aversion, since they use the same information as the rest of the market.
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There are three types of EMH which are weak form, semi-strong form and strong form
efficiency. Under weak form efficiency, prices should reflect all the past information such as
prices, earnings and interest rate so on, thus, technical analysis becomes useless in this case.
The semi-strong form efficiency implies that past and publicly available information should
be incorporated in the current prices such as earning forecasts, financial statement and price
to book ratio so on, in this case, fundamental analysis is not applicable. Hence, under semi-
strong form efficiency, investors can only increase average return if they take on more risk,
except some market anomalies such as January effect and size anomaly.
Lastly, strong form efficiency refers to that all the information mentioned above, which are
past, public and even private information should be included into the current price. Hence,
even inside traders and active portfolio managers are not able to beat the market under strong
form efficiency.
The Efficient Market Hypothesis is important to know in this dissertation, since only if the
stock price reflects the entire public announcement, can we use the abnormal returns as a
measure of the M&A deals. And event study is basically conducted under the assumption of
semi-strong or strong form efficiency.
5. Empirical case studies
5.1. General banking and finance industries
5.1.1. Industry situation and rationale for M&A
Originally, banking industries had been protected from unwanted takeovers, since regulatory
policies imposed strict restrictions than other industries in terms of market entrance and
competition due to the characteristics of industries. However, during the 1980-1990s, there
were a lot of changes in the environments and regulations of the banking and financial
services which made restrictions were lifted and in result, they were challenged from
increasing number of not only banks but also non-bank competitors.
Afterwards, the banking industries have been in the midst of a huge merger waves which
contributed to a mass reduction in the number of independent banks. These competitive
environments and financial pressure have pushed majority of banks, even the most profitable
banks in the industry, to have a belief and enthusiasm for M&A rather than independent
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internal growth. The general motive and rationale for M&A which explained on section 2,
also applies to the banking mergers, however, here are additional reasons for M&A in the
banking point of view.
First of all, main rationale behind M&A in the banking industries is costs savings. This
reduction in costs can be maximized when the two companies have overlapped operations,
thus, during the M&A process, their overlapped departments, branches and inefficient
management will be eliminated and may operate efficiently after all. Also, by combining
different areas of businesses such as banking and insurance, they can create positive
synergies which come from different assets and resources; Bancassurance is a good
example of this.
With retained earnings which gained from reduction in costs, banks can also diversify their
operations in more effective way, for instance, by moving costly functions to the other parts
of the world where economies of scale can be achieved, thus, could lower the operational
risks involved and volatility of earnings. Another critical motive for M&A in banking
industries is size matters. The profitability of banks is hugely dependent upon the size and
quality of their businesses and services, which make the banks to reach the ultimate clients
with their sound capital base and worldwide market access. Lastly, the introduction of
important information systems have created the economies of scale and over-capacity in
banking operations, thus, contributed to the boost of M&A activities in order to improve the
profitability and efficiency in the banking industries. [Radecki et al, 1997]
Therefore, through successful M&A activities, banks and financial services companies can
keep up the fierce competition with other competitors under turmoil financial environment
and ultimately could survive.
5.1.2. Results and discussions in the acquiring companies
Table 1: AAR and CAAR of the acquiring companies
Acquirer AARt T-TEST CAARt T-TEST
-2 0.0543% 0.19548 0.4941% 0.28482
-1 -0.1721% -0.6196 0.3220% 0.18327
Day 0 -2.8260% -10.172 -2.5040% -1.4076
1 -0.8455% -3.0435 -3.3495% -1.8604
2 -0.0067% -0.0242 -3.3562% -1.8423
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According to the Table 1, the market showed significantly negative reactions on the
announcement day and day 1. On average, all the thirty acquiring companies experienced
negative returns of 2.826% on day 0, and negative returns of 0.8455% on day 1 respectively.
This phenomenon tells us that market showed a delayed reaction to the announcement and
this violates the notion of semi-strong form efficiency, since investors could have made
abnormal returns by trading on public information.
Graph 1: AAR of the acquiring companies
Graph 2: CAAR of the acquiring companies
Graphs 1 and 2 depict AAR and CAAR of the thirty acquiring companies for the event period
of (-40, +40). It is obviously observable that market showed significantly negative reaction
on the announcement date. And this is exactly matched with previous findings from
Sudarsanam et al [1996], who analyzed 429 UK acquiring companies and found statisticallysignificant negative returns which has range between -1.26% and -4.04%.
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Table 2: AAR and CAAR of the Domestic/Cross border deals
From Table 2, it can be seen that twenty two domestic deals out of thirty deals are showing
the same results with table 1 results, which violates semi-strong form efficiency and showed
delayed reaction on day 1. However, eight cross border deals had significantly negative
reaction only on the announcement date, which is consistent with semi-strong form efficiency,
since the price adjusted quickly to the new information.
Graph 3: AAR of the Domestic and Cross border deals
Domestic AARt T-TEST CAARt T-TEST
-2 0.2885% 0.98485 1.7733% 0.96934
-1 -0.1064% -0.3633 1.6669% 0.89971Day 0 -3.0996% -10.581 -1.4326% -0.7638
1 -0.9480% -3.2361 -2.3806% -1.254
2 0.3048% 1.0404 -2.0759% -1.0806
Cross border AARt T-TEST CAARt T-TEST
-2 -0.5897% -0.9028 -3.0237% -0.7412
-1 -0.3528% -0.5401 -3.3765% -0.8173
Day 0 -2.0736% -3.1744 -5.4501% -1.303
1 -0.5637% -0.863 -6.0138% -1.4206
2 -0.8633% -1.3216 -6.8771% -1.6055
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Graph 4: CAAR of the Domestic and Cross border deals
Graphs 3 and 4 indicate that both domestic and cross border deals are also consistent with the
previous findings that have negative reaction on the announcement date and are confirmed by
Datta and Puia [1995], who revealed that cross border M&A deals, on average, bring the
negative returns to acquiring companies, thus, destroying values for shareholders.
Table 3: AAR and CAAR of the Cash/Stock/Mix deals
Cash AARt T-TEST CAARt T-TEST
-2 -0.9665% -1.7596 -2.2887% -0.6672
-1 -0.4066% -0.7404 -2.6953% -0.7759
Day 0 -0.7775% -1.4155 -3.4728% -0.9874
1 -0.5483% -0.9983 -4.0211% -1.1297
2 -1.0002% -1.821 -5.0213% -1.3941
Stock AARt T-TEST CAARt T-TEST
-2 0.5539% 1.16752 3.0779% 1.03887
-1 0.1555% 0.32777 3.2334% 1.07763
Day 0 -3.8669% -8.1508 -0.6335% -0.20851 -1.0602% -2.2347 -1.6937% -0.5509
2 0.4298% 0.90603 -1.2639% -0.4063
Mix AARt T-TEST CAARt T-TEST
-2 0.4090% 1.10154 -0.1681% -0.0725
-1 -0.3744% -1.0085 -0.5425% -0.231
Day 0 -3.4865% -9.3905 -4.0291% -1.6948
1 -0.8565% -2.3067 -4.8855% -2.0304
2 0.4047% 1.09001 -4.4808% -1.8404
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Above Table 3 tells us the results under different types of payment which are cash, stock and
combination of the two. From nine cash deals out of thirty deals, it showed insignificant
results during event window of (-2, +2), which confirms the null hypothesis of zero abnormal
returns. In the stock and mix deals, both showed significant negative returns on the
announcement day and the following day, which indicate the slow reaction of the market.
Graph 5: AAR of the Cash, Stock and Mix deals
Graph 6: CAAR of the Cash, Stock and Mix deals
As it can be seen from Graphs 5 and 6, the cash deals have performed better than rest of the
deals in the aspects of AAR and CAAR on the announcement date and over the event period
of (-40, +40). These critical results are consistent with most of previous studies, which state
that shareholders benefit most from the M&A cash deal, while they gain smaller returns fromother types of payment which are stock or combination of them.
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5.1.3. Results and discussions in the target companies
Table 4: AAR and CAAR of the target companies
Table 4 shows that the market had significantly positive reactions on the day before the
announcement date and the announcement date. All the target companies experienced huge
positive returns of 17.2966% on the announcement date and positive returns of 1.7644% on
the previous day on average. The significantly positive abnormal returns on the day before
announcement date, suggest that the information was leaked beforehand. However, if those
leaked information were not public knowledge until the announcement date, then this result is
consistent with semi-strong form efficiency. But, strong form efficiency seems to have been
violated, since the abnormal returns were also significantly positive on the announcement
date. If the market were strong form efficient, adjustments should have occurred only on the
previous day.
Graph 7: AAR of the target companies
Target AARt T-TEST CAARt T-TEST-2 0.3718% 0.91524 3.3236% 1.31023
-1 1.7644% 4.34372 5.0879% 1.98055
Day 0 17.2966% 42.583 22.3845% 8.6066
1 0.6788% 1.67111 23.0633% 8.76138
2 0.0423% 0.10419 23.1056% 8.67479
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Graph 8: CAAR of the target companies
Graphs 7 and 8 demonstrate AAR and CAAR of the thirty target companies for the event
period of (-40, +40). It is clear that the market experienced significantly positive returns on
the announcement date and this result is exactly supported by Dodd [1980], who examined
151 M&A deals during 1970-1977 and found large significantly positive abnormal returns to
the target companies on the day and the day before the announcement.
Table 5: AAR and CAAR of the Domestic/Cross border deals
Once again, we have found same results from both domestic and cross border deals those
significantly positive returns on the day before the announcement date and the announcement
date. But interestingly, the market reacted positively on the following day of the
announcement date in domestic deals and this is because, the leaked information were not
public knowledge until the announcement date and showed delayed reaction even after.
Domestic AARt T-TEST CAARt T-TEST
-2 0.5617% 1.83516 3.5688% 1.86721
-1 0.9340% 3.05164 4.5028% 2.32623
Day 0 15.0860% 49.2917 19.5889% 9.99576
1 1.2144% 3.96783 20.8032% 10.4883
2 0.3549% 1.1595 21.1581% 10.5424
Cross border AARt T-TEST CAARt T-TEST
-2 -0.6568% -0.5741 2.1427% 0.29989
-1 4.0479% 3.53798 6.1906% 0.85552
Day 0 23.3755% 20.4309 29.5661% 4.03578
1 -0.7941% -0.6941 28.7720% 3.88035
2 -0.8172% -0.7143 27.9548% 3.72604
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Graph 9: AAR of the Domestic and Cross border deals
Graph 10: CAAR of the Domestic and Cross border deals
From Graphs 9 and 10, it is obvious that the market in both deals has reacted in a
significantly positive way on the announcement date and cross border deals have
outperformed the domestic deals.
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Table 6: AAR and CAAR of the Cash/Stock/Mix deals
The cash deals have recorded highest positive returns of 23.8398% compared to other deals
and the same information leakage were happened, thus, is consistent with the semi-strong
form efficiency only if the information was not public domain until the announcement date.
In stock deals, they showed clear semi-strong form efficiency with significantly positive
returns only on the announcement date. And lastly, the mix deals have experienced both
information leakage and delayed market reaction. These results are consistent with the
findings from Dodd and Ruback [1977], who suggested that shareholders of target companies
gain large positive abnormal returns regardless of different types of payment and outcome of
the M&A deals.
Cash AARt T-TEST CAARt T-TEST-2 -0.6589% -0.6671 3.7262% 0.6041
-1 2.9858% 3.02298 6.7120% 1.07448
Day 0 23.8398% 24.1366 30.5518% 4.8308
1 -0.8446% -0.8551 29.7073% 4.641
2 -0.7418% -0.7511 28.9655% 4.47218
Stock AARt T-TEST CAARt T-TEST
-2 0.9398% 1.86495 4.6256% 1.46977
-1 0.6156% 1.22153 5.2412% 1.64443
Day 0 14.7137% 29.1971 19.9548% 6.18407
1 0.0162% 0.0322 19.9711% 6.11497
2 0.1674% 0.33212 20.1384% 6.0941
Mix AARt T-TEST CAARt T-TEST
-2 0.4171% 0.83209 0.9570% 0.30575
-1 2.0746% 4.13914 3.0316% 0.95636
Day 0 14.1972% 28.3255 17.2288% 5.36833
1 3.0855% 6.15607 20.3143% 6.25393
2 0.6597% 1.31625 20.9740% 6.38151
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Graph 11: AAR of the Cash, Stock and Mix deals
Graph 12: CAAR of the Cash, Stock and Mix deals
Same results with the acquiring companies were found that cash deals outperformed the rest
of the deals and this is supported by majority of previous studies that shareholders gain most
significantly positive returns from mergers with cash payment.
5.2. Bank of America Corp. and FleetBoston Financial Corp.
5.2.1. Company overview and rationale for M&A
The Bank of America was originally formed by a $60 billion merger with NationsBank in1998. Afterwards, Bank of America became the third major bank in US and announced
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merger agreement with FleetBoston which was the seventh major bank in US on 27th of
October, 2003 which had worth over $47 billion at that time. The deal was completed on 1st
of April, 2004 with a stock payment type, in result, FleetBoston shareholders received 0.5553
of the Bank of America common share for each share of the Boston bank and became the
second largest bank in the world behind the Citigroup. The combined bank had the largest
retail banking network in the US with 5,700 branches across 29 states.
The main reason behind the acquisition of FleetBoston was to achieve an increase in market
share by expanding into the New England and Northeast region. Since the majority market
shares of Bank of America were invested only in the West, Midwest and South of the US,
they needed to acquire the New England and Northeast region of FleetBostons.
The Bank of America paid 42% of market premiums, thus, in order to offset these huge
expenses, another aim of the acquisition for the Bank of America was to achieve a reduction
in costs through economies of scale. However, the objective of reduction in costs seemed
difficult to be achieved at that time, since both banks had different main lines of businesses
and no overlapping branches or operations. Therefore, it was an essential task for the Bank of
America to assimilate FleetBostons different operations and systems, and get rid of
unnecessary costs in order to achieve economies of scale.
5.2.2. Results and discussions
Table 7: AR and CAR of the Bank of America
From Table 7, the market shows significantly negative returns of 10.3318% and 2.2698% on
the announcement date and the following day. The significantly negative returns on day 1
represent that the reaction of the slow learning market was delayed. Afterwards, the opposite
signal of significantly positive returns on day 2 indicates the markets correction movement
of its over-reaction which was on the announcement date and day 1.
ARt T-TEST CARt T-TEST
-2 0.6248% 0.90789 0.8914% 0.20742
-1 0.4649% 0.67559 1.3563% 0.31163
Day 0 -10.3318% -15.014 -8.9755% -2.0369
1 -2.2698% -3.2983 -11.2453% -2.52152 1.7890% 2.59968 -9.4563% -2.0955
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Graph 13: AR of the Bank of America
Graph 14: CAR of the Bank of America
It is clearly observable from Graphs 13 and 14 that the market experienced huge negative
returns on the announcement date. This common phenomenon is supported by Mulherin and
Boone [2000], who found significant negative returns of -0.37% to acquiring companies after
examined 281 M&A deals from 1990 to 1999.
Table 8: AR and CAR of the FleetBoston Financial Corp
ARt T-TEST CARt T-TEST
-2 -0.2361% -0.2125 2.2576% 0.32538
-1 -0.2933% -0.264 1.9644% 0.27955
Day 0 22.9554% 20.6611 24.9197% 3.50283
1 -2.8765% -2.589 22.0432% 3.06139
2 1.6776% 1.50989 23.7208% 3.25584
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Table 8 indicates that there was a huge significantly positive return of 22.9554% on the
announcement date and a negative return of 2.8765% on the following day. Thus, this
opposite direction of movement can be regarded as a correction of the over-reaction which
was on the announcement date.
Graph 15: AR of the FleetBoston Financial Corp
Graph 16: CAR of the FleetBoston Financial Corp
The significantly positive reaction of the market on the announcement date can be easily
observed in the Graphs 15 and 16. Jensen and Ruback [1983] support this view with
evidences of positive returns to the target companies at the announcement date.
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5.2.3. Profitability ratios analysis
In order to measure the pre and post merger performances, it is an essential to analyze the
financial statement of the Bank of America. There are lots of financial ratios can be analyzed,
however, this dissertation is focused on the profitability ratios such as Return on Assets,
Return on Equity and Net interest Margin, which are the main interests of shareholders.
These profitability ratios are summarized in below Table 9 and 10.
Table 9: Profitability ratios of the Bank of America
Table 10: Profitability ratios of the peer companies
During the pre and post merger periods, the Bank of America maintained relatively good
performances in the aspects of profitability, although these ratios had been down trended.
They have managed well above the averages of the peer companies; however, Return on
Shareholders Equity has decreased sharply after merger on October in 2003 which was
lower than the average of the peer companies. This is not good news to the shareholders,since this is the ratio that shareholders are most concerned. These results are not exactly, but
Profitability ratios 2000 2001 2002 2003 2004 2005 2006
Return on Assets 1.18% 1.07% 1.44% 1.57% 1.52% 1.37% 1.53%Return on Equity 16.34% 14.14% 18.73% 22.01% 18.84% 16.35% 18.07%
Net Interest Margin 3.51% 4.00% 4.20% 3.95% 3.81% 3.15% 3.13%
Pre-merger Post-merger
Profitability ratios 2000 2001 2002 2003 2004 2005 2006
HSBC Holdings 1.09 0.75 0.86 0.98 1.12 1.08 0.93
Citigroup 1.58 1.43 1.41 1.51 1.24 1.65 1.27
Goldman Sachs 1.14 0.77 0.63 0.79 0.97 0.91 1.22
JPMorgan Chase&Co 0.81 0.23 0.22 0.87 0.46 0.72 1.13
Wells Fargo&Co 1.56 1.18 1.65 1.68 1.72 1.69 1.76
Average 1.24% 0.87% 0.95% 1.17% 1.10% 1.21% 1.26%
HSBC Holdings 17.08 11.11 12.71 13.9 16.15 16.93 15.64
Citigroup 22.18 19.44 18.41 19.52 16.56 22.33 18.66
Goldman Sachs 23 13.29 11.36 14.79 19.49 21.85 31.89
JPMorgan Chase&Co 15.17 4.02 3.96 15.43 5.87 7.98 12.96
Wells Fargo&Co 16.09 12.77 18.92 19.15 19.38 19.61 19.77
Average 18.70% 12.13% 13.07% 16.56% 15.49% 17.74% 19.78%
HSBC Holdings 2.61 2.55 2.49 3.32 3.12 2.58 2.38
Citigroup 3.9 3.95 4.09 3.85 3.45 2.95 2.58
Goldman Sachs 0.38 0.45 0.76 0.87 0.68 0.52 0.47JPMorgan Chase&Co 1.81 2.06 2.11 2.23 2.23 2.07 2.04
Wells Fargo&Co 5.28 5.36 5.44 5.22 4.9 4.72 4.88
Average 2.80% 2.87% 2.98% 3.10% 2.88% 2.57% 2.47%
Net Interest Margin
Post-mergerPre-merger
Return on Assets
Return on Equity
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partially consistent with the findings from Mueller [1980], who examined 287 merger cases
during 1962-1972 and found that returns to the acquiring companies were less profitable than
comparable companies in post merger period, although results were not significant. These
discussions can be verified by below graphs.
Graph 17: ROA of the Bank of America and Peer companies
Graph 18: ROE of the Bank of America and Peer companies
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Graph 19: NIM of the Bank of America and Peer companies
6. Conclusion
After since the 1980-1990s, when there were lots of changes in the regulations and
restrictions on the banking and financial services industries, they were challenged from
increasing number of fierce competitors and left in the midst of a huge merger waves. Inresult, all the issues of shareholders were focused on their wealth gains from M&A deals.
Thus, this dissertation examined the main objective ofvalue creation of the recent banking
M&A cases to the shareholders by conducting standard process of event study and financial
ratios analysis. All the findings from this dissertation can be summarized as follows.
From the analysis of the general thirty merger cases, different results came out for the
acquiring companies and the target companies. The acquiring companies realized
significantly negative returns of 2.8260% on the announcement date and negative returns of
0.8455% on the following day which indicates the delayed reaction of the market. In contrast,
the target companies gained significantly positive returns of 17.2966% on the announcement
date and 1.7644% on the day before announcement date which represents the information
was leaked beforehand. The assumption of the event study methodology is that the market is
efficient; however, the results from this dissertation were mostly not consistent with the semi-
strong form market efficiency since the market showed the phenomenon of information
leakage and delayed reaction before or after the announcement date.
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Also, event study was conducted under different categories in order to analyze in a various
way. Cross border deals reacted more positively than domestic deals to the both acquiring
companies and target companies on the announcement date and afterwards. Under the
categories of different types of payment, the cash deals significantly outperformed in a
positive way to the both acquiring companies and target companies, while shareholders
gained less or worse returns from the deals with other types of payment which were the stock
and the combination of cash and stock. All of the above findings are consistent with the
recent trends of the M&A deals, and supported by most of common previous studies.
From the Bank of America and FleetBoston case study, interestingly, slight different results
were found. The shareholders of Bank of America experienced significantly negative returns
of 10.3318% and 2.2698% on the announcement date and the following day respectively,
however, there was a significantly positive reaction on day 2 which can be regarded as a
correction movement of an over-reaction which was on the previous day. The similar market
reactions were also found on FleetBoston case. The profitability ratios of Bank of America,
including ROA, ROE and NIM, showed downward trend in post-merger period especially
with ROE, which had a sharp decrease after the M&A. Even though the profitability ratios
were still above the average of the peer companies, sharp decrease of the ROE in post-merger
period was not really good news for the shareholders of Bank of America.
There are some limitations in this dissertation which involved in the sample M&A deals
selected. The samples included only thirty banks and financial services companies regardless
of their main businesses; thus, it might contain sampling error which comes from the lack of
data and might provide biased results. Since this dissertation included friendly completed
merger deals only, it may give a wider picture of analysis, if we extend the research to the
other types of mergers as well. In the Bank of America and FleetBoston case study, this
dissertation only focused on the profitability ratios analysis, thus, it would provide more
accurate measure of post-performances if further financial ratios were analyzed.
Therefore, M&A can create additional values not only to the target shareholders, but also to
the shareholders of acquiring companies, when the deal is implemented with careful intention
and in-depth analysis. Lastly, I hope this dissertation gives an insight of the value creation of
the M&A cases to investors and banks, so that they could make better investment decisions.
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Appendices
List of companies and announcement date
Announcement date Acquirer (Country) Target (Country)
2005-05-09 Barclays, UK ABSA Group, South Africa
2006-08-01 HBOS, UK McCarthy&Stone, UK
2000-11-20 Banco Santander SA, Spain Banco do Estado de Sao Paulo, Brazil
2000-03-14 Dexia SA, Belgium Financial Security Assurance Holdings, US
2000-05-15 UniCredit SpA, Italy Pioneer Grooup, US
2007-11-19 Credit Agricole SA, France Bankinter SA, Spain
2000-10-10 Deutsche Bank AG, Germany National Discount Brokers Group, US
2007-07-09 Marshall&Ilsley Corp, US First Indiana Corp, US
2003-12-02 Hibernia Corp, US Coastal Bancorp, US
2008-05-13 Westpac Banking Corp, Australia St George Bank, Australia
2006-12-04 Bank of New York Mellon Corp, US Mellon Financial Corp, US
2006-05-25 Regions Financial Corp, US AmSouth Bancorp, US
2000-07-22 UniCredit Bank AG, Germany Bank Austria Creditanstalt AG, Austria
2007-02-05 State Street Corp, US Investors Financial Services Corp, US
2003-01-21 BB&T Corp, US First Virginia Banks, US
2007-05-01 National City Corp, US MAF Bancorp, US
2001-01-26 Royal Bank of Canada, Canada RBC Bancorporation USA, US
2000-03-20 National Commerce Financial Corp, US CCB Financial Corp, US
2006-09-21 First Busey Corp, US Main Street Trust, US
2004-11-16 Community Banks, US Pennrock Financial Services Corp, US
2007-07-26 StellarOne Corp, US FNB Corp, US
2006-12-20 Huntington Bancshares, US Sky Financial Group, US
2006-05-02 MB Financial, US First Oak Brook Bancshares, US
2006-10-09 PNC Financial Services Group, US Mercantile Bankshares Corp, US
2006-05-07 Wachovia Corp, US Golden West Financial Corp, US
2006-06-05 Sterling Financial Corp, US FirstBank NW Corp, US
2007-06-27 People's United Financial, US Chittenden Corp, US
2004-05-09 SunTrust Banks, US National Commerce Financial Corp, US
2005-07-26 Fulton Financial Corp, US Columbia Bancorp, US
2000-05-17 M&T Bank Corp, US Keystone Financial, US
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AAR and CAAR of the acquiring companies for (-40, +40)
T AA Rt T-TEST CA ARt T-TEST
-40 -0.000501627 -0.1805656 -0.0005016 -0.1805656
-39 0.004927558 1.77372201 0.00442593 1.12653171
-38 0.002254713 0.81160582 0.00668064 1.38839012
-37 -0.001357692 -0.4887143 0.00532295 0.95802395
-36 0.000699617 0.25183395 0.00602257 0.96950624-35 0.001783686 0.6420552 0.00780626 1.147152
-34 -0.000144727 -0.052096 0.00766153 1.04236595
-33 0.004389653 1.58009813 0.01205118 1.53369312
-32 0.001013312 0.36475153 0.01306449 1.56756358
-31 -0.002847607 -1.0250238 0.01021689 1.16298041
-30 -0.004495358 -1.6181477 0.00572153 0.62096844
-29 0.00145484 0.52368391 0.00717637 0.74570654
-28 -0.004803447 -1.7290471 0.00237292 0.2369003
-27 0.004009769 1.44335513 0.00638269 0.61403572
-26 0.003224401 1.16065423 0.00960709 0.8928945
-25 0.000480982 0.17313406 0.01008807 0.9078249
-24 -0.003596161 -1.2944729 0.00649191 0.56676373
-23 -0.001633576 -0.5880214 0.00485834 0.41219736
-22 -0.003991973 -1.4369493 0.00086636 0.07154468
-21 -0.001770734 -0.6373927 -0.0009044 -0.0727922
-20 0.001393906 0.50175009 0.00048954 0.03845293
-19 0.001636229 0.58897664 0.00212577 0.16313908
-18 -0.000359375 -0.1293604 0.00176639 0.13257966
-17 -0.001642338 -0.5911756 0.00012405 0.00911497
-16 0.002236608 0.80508868 0.00236066 0.16994855
-15 -0.003523466 -1.2683057 -0.0011628 -0.082087
-14 0.003779613 1.36050826 0.00261681 0.18127746
-13 0.002907439 1.0465607 0.00552425 0.37579231
-12 0.002455038 0.88371483 0.00797928 0.53335802
-11 -0.001762081 -0.6342783 0.0062172 0.40859054
-10 -0.001741159 -0.626747 0.00447604 0.28937926
-9 0.001557914 0.56078613 0.00603396 0.38395574
-8 -0.004103646 -1.4771469 0.00193031 0.1209552
-7 -0.000538957 -0.1940029 0.00139136 0.08589195
-6 -0.004509199 -1.6231298 -0.0031178 -0.189703
-5 -0.002930091 -1.0547148 -0.0060479 -0.3628355
-4 0.005324828 1.91672347 -0.0007231 -0.0427913
-3 0.005121404 1.84349884 0.0043983 0.2568305
-2 0.000543066 0.19548181 0.00494136 0.28481856
-1 -0.001721256 -0.6195828 0.00322011 0.18327115
0 -0.028259681 -10.172346 -0.0250396 -1.4076312
1 -0.008455158 -3.0435158 -0.0334947 -1.8603974
2 -6.71168E-05 -0.0241593 -0.0335618 -1.8423219
3 0.003409487 1.22727769 -0.0301524 -1.636247
4 0.002084938 0.75049347 -0.0280674 -1.5060874
5 -0.000975272 -0.3510586 -0.0290427 -1.5413877
6 -0.000292146 -0.1051607 -0.0293348 -1.5402411
7 0.00299704 1.07881341 -0.0263378 -1.3683991
8 0.001281581 0.46131758 -0.0250562 -1.2884614
9 -0.000786165 -0.2829879 -0.0258424 -1.3155322
10 0.004240392 1.52637005 -0.021602 -1.0888364
11 -0.001243413 -0.4475785 -0.0228454 -1.140384
12 0.001092902 0.39340057 -0.0217525 -1.0755367
13 -0.004880823 -1.7568995 -0.0266333 -1.3046152
14 -0.004431746 -1.59525 -0.0310651 -1.5078042
15 0.00017653 0.06354353 -0.0308885 -1.4857896
16 0.001034842 0.37250129 -0.0298537 -1.4233597
17 0.003312466 1.19235418 -0.0265412 -1.2544722
18 -0.001712912 -0.6165791 -0.0282542 -1.3240675
19 -0.004225915 -1.5211589 -0.0324801 -1.509368
20 -0.000321233 -0.1156308 -0.0328013 -1.51175
21 -0.003284384 -1.182246 -0.0360857 -1.6496543
22 0.003047475 1.0969681 -0.0330382 -1.4983044
23 -0.004867669 -1.7521646 -0.0379059 -1.7055734
24 0.0018053 0.64983503 -0.0361006 -1.6118007
25 -0.000176711 -0.063609 -0.0362773 -1.6073732
26 -0.006028262 -2.1699313 -0.0423056 -1.860432
27 -0.001402589 -0.5048756 -0.0437081 -1.9079269
28 -0.00045789 -0.1648219 -0.044166 -1.9138931
29 0.002892277 1.04110321 -0.0412738 -1.7757376
30 0.002297942 0.8271664 -0.0389758 -1.6650215
31 -0.00024129 -0.0868545 -0.0392171 -1.6636543
32 -0.000774734 -0.2788731 -0.0399918 -1.6848598
33 -0.00441631 -1.5896936 -0.0444081 -1.858235
34 0.001635073 0.58856023 -0.0427731 -1.7778441
35 0.005470861 1.96928923 -0.0373022 -1.5402161
36 -0.00015978 -0.0575142 -0.037462 -1.5367363
37 0.003974263 1.4305745 -0.0334877 -1.364873
38 0.000341858 0.12305509 -0.0331459 -1.3423623
39 -0.005901759 -2.1243951 -0.0390476 -1.5714607
40 -0.001298991 -0.4675845 -0.0403466 -1.6136841
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AAR and CAAR of the target companies for (-40, +40)
T AA Rt T-TEST CA ARt T-TEST
-40 0.005471969 1.34716247 0.00547197 1.34716247
-39 0.00174024 0.42843545 0.00721221 1.25553733
-38 -0.002372271 -0.5840373 0.00483994 0.68794785
-37 0.003155413 0.77684163 0.00799535 0.98420113
-36 0.002449084 0.60294822 0.01044443 1.14994289
-35 0.00136327 0.33562811 0.01180771 1.18676904
-34 -0.002836276 -0.6982724 0.00897143 0.83481247
-33 0.000295118 0.07265599 0.00926655 0.80658333
-32 0.00783357 1.92857286 0.01710012 1.40331168
-31 0.004064731 1.00070981 0.02116485 1.64775058
-30 0.000154962 0.03815061 0.02131981 1.58257137
-29 0.001932777 0.47583674 0.02325259 1.65255897
-28 -0.004992307 -1.2290729 0.01826028 1.2468438
-27 0.00049756 0.12249585 0.01875784 1.23422715
-26 0.001201829 0.29588226 0.01995967 1.26877318
-25 -7.39413E-05 -0.0182039 0.01988573 1.22393338
-24 -0.004063042 -1.000294 0.01582268 0.94478287
-23 -0.001247148 -0.3070396 0.01457554 0.84579399
-22 -0.006525713 -1.6065871 0.00804982 0.45465906
-21 0.003608576 0.88840731 0.0116584 0.64180075
-20 -0.005378816 -1.3242288 0.00627958 0.33736298
-19 0.005161225 1.27065935 0.01144081 0.60051196
-18 0.00227459 0.55998906 0.0137154 0.70407807
-17 -0.003332268 -0.8203822 0.01038313 0.5217939
-16 -0.005742679 -1.4138093 0.00464045 0.22848966-15 0.001365313 0.336131 0.00600576 0.28997325
-14 0.005635462 1.38741324 0.01164123 0.55156052
-13 0.006010918 1.47984796 0.01765214 0.82128665
-12 0.003347855 0.82421962 0.021 0.96005606
-11 0.002248928 0.5536712 0.02324893 1.04500558
-10 -0.003068526 -0.7554506 0.0201804 0.89232955
-9 -0.004640373 -1.1424289 0.01554003 0.67632143
-8 -0.002286158 -0.562837 0.01325387 0.56801796
-7 0.000500575 0.1232383 0.01375445 0.58073761
-6 0.001417771 0.34904579 0.01517222 0.63138074
-5 -0.001217032 -0.2996253 0.01395518 0.57261226
-4 0.002231782 0.54944985 0.01618697 0.65515025
-3 0.01333114 3.28203797 0.02951811 1.17888924
-2 0.003717582 0.91524408 0.03323569 1.31023348
-1 0.017643546 4.34372382 0.05087923 1.98055494
0 0.172965694 42.5830045 0.22384493 8.60660074
1 0.006787782 1.67110678 0.23063271 8.76138133
2 0.000423189 0.10418642 0.2310559 8.67479379
3 0.000876435 0.21577259 0.23193234 8.60817897
4 0.00694686 1.71027083 0.2388792 8.76694731
5 0.001317725 0.32441506 0.24019692 8.71896319
6 0.000452151 0.11131663 0.24064907 8.64194676
7 0.002588994 0.63739301 0.24323806 8.64345244
8 0.001203678 0.29633745 0.24444174 8.59713322
9 0.001113275 0.27408085 0.24555502 8.54948856
10 0.004250539 1.04645436 0.24980556 8.61178802
11 -0.001850282 -0.4555271 0.24795527 8.46541015
12 -0.002311067 -0.5689694 0.24564421 8.30701353
13 -0.003687065 -0.9077308 0.24195714 8.10621078
14 -0.005920239 -1.4575234 0.2360369 7.8356475
15 -0.004248902 -1.0460514 0.231788 7.62558671
16 -0.000339122 -0.0834895 0.23144888 7.54734116
17 -0.000804299 -0.198013 0.23064458 7.4559946
18 -0.000110983 -0.0273233 0.2305336 7.38898099
19 -0.007156006 -1.7617611 0.22337759 7.09970504
20 0.000695368 0.17119508 0.22407296 7.06318954
21 -0.000364631 -0.0897697 0.22370833 6.9945960222 -0.003693957 -0.9094276 0.22001437 6.82428419
23 -0.003505919 -0.8631339 0.21650845 6.66286783
24 0.004561937 1.12311856 0.22107039 6.75072206
25 -0.003253757 -0.8010533 0.21781663 6.60078217
26 -0.002325555 -0.5725363 0.21549108 6.48139098
27 -0.000658719 -0.1621722 0.21483236 6.41389091
28 0.014982888 3.68868754 0.22981525 6.81130961
29 -0.000431552 -0.1062451 0.2293837 6.74978366
30 -0.001999839 -0.4923471 0.22738386 6.64365057
31 -0.000348827 -0.0858789 0.22703503 6.58723186
32 0.001508716 0.37143592 0.22854375 6.58543154
33 -0.001605064 -0.395156 0.22693868 6.49484808
34 -0.000530569 -0.1306226 0.22640811 6.4363208
35 0.00615008 1.51410892 0.23255819 6.56751657
36 -0.000624944 -0.153857 0.23193325 6.50719736
37 0.000118962 0.02928754 0.23205221 6.46866616
38 0.000654681 0.1611781 0.23270689 6.4457288
39 -0.001097789 -0.2702683 0.2316091 6.37509939
40 -0.002276848 -0.5605448 0.22933226 6.27334196
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AR and CAR of the Bank of America for (-40, +40)
T ARt T-TEST CA Rt T-TEST
- 40 0. 0075858 1.102328 0. 0075858 1. 102328
-39 -0.0095406 -1.3863857 -0.0019548 -0.2008591
-38 -0.0217437 -3.159664 -0.0236984 -1.9882336
-37 -0.0241939 -3.5157219 -0.0478924 -3.4797218
-36 0.0039076 0.5678253 -0.0439848 -2.8584186-35 0.0022839 0.3318784 -0.0417009 -2.4738784
-34 -0.0047051 -0.6837206 -0.0464061 -2.5487884
-33 -0.0065588 -0.953091 -0.0529649 -2.7211418
-32 0.0049654 0.7215468 -0.0479995 -2.3250015
-31 0.0009808 0.1425211 -0.0470187 -2.160621
-30 0.0183072 2.6602938 -0.0287115 -1.2579625
-29 -0.0038582 -0.5606463 -0.0325697 -1.366252
-28 0.0067151 0.9758062 -0.0258545 -1.0420126
-27 0.010751 1.5622682 -0.0151036 -0.5865747
-26 -0.003516 -0.5109273 -0.0186196 -0.6986058
-25 0.0027702 0.4025477 -0.0158494 -0.5757853
-24 0.0004144 0.0602186 -0.015435 -0.5439886
-23 0.0074496 1.0825281 -0.0079854 -0.2735076
-22 0.0060736 0.882585 -0.0019118 -0.0637338
-21 0.0089081 1.2944783 0.0069963 0.2273341
-20 -0.009402 -1.3662382 -0.0024056 -0.0762823
-19 -9.872E-05 -0.0143449 -0.0025043 -0.0775867
-18 -0.0037542 -0.5455414 -0.0062585 -0.1896346
-17 -0.0022815 -0.3315286 -0.00854 -0.2533148
-16 -0.0035561 -0.5167467 -0.0120961 -0.3515461
-15 0.0074218 1.0784917 -0.0046743 -0.1332097
-14 -0.0054414 -0.7907175 -0.0101157 -0.2828933
-13 0.0040152 0.5834604 -0.0061005 -0.167532
-12 -0.0001334 -0.0193825 -0.0062339 -0.1682174
-11 0.0058673 0.8526065 -0.0003666 -0.0097261
-10 0.0015391 0.2236524 0.0011725 0.0306012
-9 0.005755 0. 8362901 0. 0069275 0.1779559
-8 -0.0034212 -0.4971485 0.0035063 0.0886964
-7 -0.0044694 -0.6494624 -0.000963 -0.0239996
-6 0.0054794 0.7962354 0.0045164 0.1109341
-5 -0.0080981 -1.1767724 -0.0035817 -0.0867462
-4 -0.0061167 -0.8888466 -0.0096985 -0.2316914
-3 0.0123646 1.7967521 0.0026661 0.0628491
-2 0.0062478 0.9078931 0.0089139 0.2074174
-1 0.0046491 0.6755868 0.0135631 0.3116279
0 -0.1033181 -15.013592 -0.089755 -2.0369251
1 -0.0226976 -3.2982894 -0.1124527 -2.521467
2 0. 01789 2. 5996759 -0.0945626 -2.0955283
3 0.0012476 0.1813006 -0.093315 -2.0442465
4 0.0107482 1.5618606 -0.0825668 -1.7885766
5 0.0019187 0.2788088 -0.0806482 -1.7279206
6 -0.001628 -0.2365645 -0.0822761 -1.7439461
7 0.0096283 1.3991225 -0.0726479 -1.5237385
8 0.0032039 0.4655726 -0.069444 -1.4415996
9 -0.0054145 -0.7868034 -0.0748585 -1.5383816
10 -0.0025111 -0.3648973 -0.0773696 -1.5743206
11 -0.0011413 -0.1658534 -0.0785109 -1.5821091
12 -0.0058276 -0.8468261 -0.0843384 -1.683433
13 -0.0054069 -0.7857053 -0.0897454 -1.7746938
14 -0.0030496 -0.4431455 -0.092795 -1.8182399
15 0.003078 0.4472734 -0.089717 -1.7421631
16 -0.0009896 -0.1438 -0.0907066 -1.7458601
17 -0.0012527 -0.1820413 -0.0919593 -1.7546473
18 0.0018064 0.2624975 -0.0901529 -1.7055396
19 0.0031662 0.4600982 -0.0869867 -1.6318687
20 -0.0063809 -0.9272379 -0.0933676 -1.7371581
21 0.0003196 0.046436 -0.093048 -1.7171944
22 0.0017401 0.2528548 -0.091308 -1.6716547
23 -0.0005818 -0.0845468 -0.0918898 -1.6691118
24 0.0025563 0.3714717 -0.0893335 -1.6101473
25 0.0058835 0.8549621 -0.0834499 -1.4926641
26 -0.013913 -2.0217571 -0.0973629 -1.7284799
27 -0.0037586 -0.5461763 -0.1011215 -1.781957
28 0.001256 0.1825189 -0.0998655 -1.7470245
29 0.0054741 0.795465 -0.0943914 -1.6394246
30 -0.0009009 -0.1309151 -0.0952923 -1.6433751
31 0.0030269 0.4398475 -0.0922654 -1.5800864
32 -0.005853 -0.8505286 -0.0981184 -1.6687734
33 -0.0030563 -0.4441237 -0.1011747 -1.7090879
34 0.0121328 1.7630619 -0.089042 -1.4940749
35 0.0082163 1.1939478 -0.0808257 -1.3472577
36 0.0036076 0.5242337 -0.0772181 -1.2787387
37 0.003012 0.4376909 -0.074206 -1.2209565
38 0.0014091 0.2047605 -0.072797 -1.1901669
39 -0.0027594 -0.4009769 -0.0755563 -1.2275356
40 0.0005638 0.0819353 -0.0749925 -1.2108307
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AR and CAR of the FleetBoston Financial Corp. for (-40, +40)
T ARt T-TEST CA Rt T-TEST
-40 -0.0074656 -0.6719408 -0.0074656 -0.6719408
-39 -0.0119621 -1.0766551 -0.0194277 -1.2364441
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