Stock Indicator Editor

How can I get start with Stock Indicator Editor?

What kind of functionality you had provided for me to build my own indicator?

Can you show me an example on how to build an indicator?

What is the best way for me to share my indicator with friends?

How can I specific "N days back 14 days moving average"?

I would like to perform MACD scanning.

How can I get start with Stock Indicator Editor?

The best way to get start with Stock Indicator Editor, is to start with our pre-built indicators. You may

install pre-built indicators, by clicking on Install.... 

Select Install from JStock Server, and click Next. 

Select indicators you wish to install, and click Next. We highly recommend you select all

indicators. 

Click Finish. 

You may test on the indicator, by entering a stock, and press Simulate. 

What kind of functionality you had provided for me to build my own indicator?

User may then access the indicator components from the following

toolbar. 

Each of the component's functionality is described as below.

Component Icon Description

AlertIn every indicator which you built, it must consist at least (and only) single

alert component.

Real time

stock

information

This represents today real time stock information. You may choose Open

Price, Last Price, High Price, Low Price, Typical Price ([High + Low + Last

Price] / 3), Volume, Change Price, Change Price in Percentage, Last Volume,

1st/2nd/3rd Buy Price, 1st/2nd/3rd Buy Quantity, 1st/2nd/3rd Sell Price,

1st/2nd/3rd Sell Quantity.

Stock history

information

You may specific the stock history information in specific date. For example,

you may specific average stock last price information from 14th June 2005

to 16th December 2006. You may either choose Maximum, Minimum,

Average (Simple Moving Average), Mean Deviation, MACD, RSI (Relative

Strength Index), EMA (Exponential Moving Average). You may also choose

Open Price, Last Price, High Price, Low Price, Typical Price ([High + Low +

Last Price] / 3), and Volume.

Stock relative

history

information

You may specific the stock relative history information in specific date. For

example, you may specific average stock last 14 days price information. You

may either choose Maximum, Minimum, Average (Simple Moving Average),

Mean Deviation, MACD, RSI (Relative Strength Index), EMA (Exponential

Moving Average). You may also choose Open Price, Last Price, High Price,

Low Price, Typical Price ([High + Low + Last Price] / 3), and Volume.

Constant You may specific any constant number like 1, 10, 200, -5.

ArithmeticYou may perform one of the arithmetic operation, add/ minus/

multiplication/ division.

Function You may perform one of the function operation, absolute/ square.

ComparisonYou may perform the following equality/ comparison operation, equal/

greater than/ lesser than/ equal or greater than/ equal or lesser than.

Logical

You may perform the following logical operation. There are two : OR/ AND.

For example, you want something 

"When today price is lesser than yesterday price OR today volume is lesser

than yesterday volume" 

"When today price is lesser than yesterday price AND today volume is lesser

than yesterday volume"

Can you show me an example on how to build an indicator?

Here is an example, to show you how to build a simple indicator, to find out stock "its closing price is in

14 days highest". First, we will draft out our equation to Real Time Stock's Last Price >= Maximum

from 14 days Stock's Last Price From the equation, we know that we need the following components :

Real time stock information 

Relative stock history 

Equality 

Alert 

Moving Average Convergence Divergence

Relative Strength Index

Money Flow Index

Commodity Channel Index

Doji

      

Introduction

Moving Average Convergence Divergence (MACD) is a trend following indicator, and is

designed to identify trend changes.

Formula

MACD = EMA[12] of price - EMA[26] of price

where: EMA[12] = 12 days exponential moving average, EMA[24] = 24 days exponential

moving average.

Interpretation

When MACD is positive, the stock is moving in upward trend. When MACD is negative, the

stock is moving in downward trend.

Case Study

As shown in the graph above.

In Mar-2009, EMA[12] (in blue line) starts to cross below EMA[26] (in green line). PUBLIC BANK

BHD starts to move in downward trend.

In April, EMA[12] starts to cross above EMA[26]. PUBLIC BANK BHD starts to move in upward

trend.

Different groups of investor will have different interpretation on both situation. During

downward trend (negative MACD), some investors view it as a signal to accumulate share in

cheap price. However, some investors may view it as a signal to sell off share on hand, to

avoid further paper loss.

Final Note

There is no exact right period for MACD. The longer the time period, the less sensitive the

moving average to daily price change noises. User shall experiment with various time period,

according to current market condition.

Reference

http://en.wikipedia.org/wiki/MACD

Analyzing Stocks Using JStock’s Alert Indicator

As I was mentioning in my earlier post, JStock has the pre-built indicators. When in JStock, click on the tab, ‘Stock Indicator Editor’ then click on the button, ‘Install’ (in the Database panel found to the right of the screen).

You’d be prompted with an Indicator Install Wizard. Choose the default and click on next.You’ll be given the choices of 8 indicators.

Click on any one of them and the screen on the right hand side of the window will display some short description about the indicator.

Below are the indicators and their short descriptions. And ran against the stock, GAMUDA (as of 28th Dec 2010)

Indicator: Moving Average Convergence Divergence (MACD)Usage: Detect DOWN TREND signalHomepage: http://jstock.sourceforge.net/ma_indicator.html MACD = EMA[12] of price - EMA[26] of price where: EMA[12] = 12 days exponential moving average, EMA[24] = 24 days exponential moving average. When MACD is negative, the stock is moving in downward trend.

Indicator: Moving Average Convergence Divergence (MACD)Usage: Detect UP TREND signalHomepage: http://jstock.sourceforge.net/ma_indicator.html MACD = EMA[12] of price - EMA[26] of price where: EMA[12] = 12 days exponential moving average, EMA[24] = 24 days exponential moving average. When MACD is positive, the stock is moving in upward trend.

Indicator: Money Flow Index (MFI)Usage: Detect DOWN TREND signalHomepage: http://jstock.sourceforge.net/mfi_indicator.html MFI = 100 - 100 / (1 + Money Ratio) If the MFI approaches 30, the price is moving, with little interest in that trade, and it will most likely fail.

Indicator: Money Flow Index (MFI)Usage: Detect UP TREND signalHomepage: http://jstock.sourceforge.net/mfi_indicator.html MFI = 100 - 100 / (1 + Money Ratio) If the MFI approaches 70, the price is moving, with a lot of interest in that trade, and it will most likely continue in the future.

Indicator: Relative Strength Index (RSI)Usage: Detect SELL signalAuthor: Yan Cheng CheokHomepage: http://jstock.sourceforge.net/rsi_indicator.html RSI = 100 - [100/(1 + RS)] where: RS = (Avg. of n-day up closes)/(Avg. of n-day down closes), n= days (most analysts use 9 - 15 day RSI) The RSI ranges from 0 to 100. A stock is considered overbought around the 70 level and you should consider selling. This number is not written in stone, in a bull market some believe that 80 is a better level to indicate an overbought stock since stocks often trade at higher valuations during bull markets.

Indicator: Relative Strength Index (RSI)Usage: Detect BUY signalAuthor: Yan Cheng CheokHomepage: http://jstock.sourceforge.net/rsi_indicator.html RSI = 100 - [100/(1 + RS)] where: RS = (Avg. of n-day up closes)/(Avg. of n-day down closes), n= days (most analysts use 9 - 15 day RSI) The RSI ranges from 0 to 100. If the RSI approaches 30 a stock is considered oversold and you should consider buying. Again, make the adjustment to 20 in a bear market.

Indicator: Commodity Channel Index (CCI)Usage: Detect SELL signalAuthor: Yan Cheng CheokHomepage: http://jstock.sourceforge.net/cci_indicator.html CCI = (Typical Price - SMATP) / (0.015 x Mean Deviation)Typical Price (TP) = (H+L+C)/3 where H = high, L = low, and C = close.SMATP = Simple Moving Average of the Typical Price.Mean Deviation = First, calculate the absolute value of the difference between the last period's SMATP and the typical price for each of the past 20 periods. Add all of these absolute values together and divide by 20 to find the Mean Deviation. CCI can be used to identify overbought levels. A security would be deemed overbought when it exceeds +100. From overbought levels, a sell signal might be given when the CCI moved back below +100.

Indicator: Commodity Channel Index (CCI)Usage: Detect BUY signalAuthor: Yan Cheng CheokHomepage: http://jstock.sourceforge.net/cci_indicator.html CCI = (Typical Price - SMATP) / (0.015 x Mean Deviation)

Typical Price (TP) = (H+L+C)/3 where H = high, L = low, and C = close.SMATP = Simple Moving Average of the Typical Price.Mean Deviation = First, calculate the absolute value of the difference between the last period's SMATP and the typical price for each of the past 20 periods. Add all of these absolute values together and divide by 20 to find the Mean Deviation. CCI can be used to identify oversold levels. A security would be deemed oversold when the CCI dips below -100. From oversold levels, a buy signal might be given when the CCI moves back above -100.

I will do another one later with another different stock e.g. TimeCom. So, with all this indicators to Gamuda, do you think it is a good stock to keep or to sell?

JStock: powerful tool to manage and monitor stocksSep 2, 2009 By Samer Kurdi 7 Comments

JStock is a free, open source stock-monitoring software. It can create a database of stocks and download and deliver data and charts for these in real time for more than 20 world markets and going back up to 10 years.

It can also set-up stock portfolios where it records all transactions and calculates profit or loss.

Two features stand out, however, the first is Alerts delivery (SMS, Email, or in the system tray) that are based on user-created “Stock Indicators”. The second is a built-in chat function designed to enable JStock users to communicate with each other and share information. JStock is multiplatform (Windows/Linux/Mac/Solaris).

This program will let you view/download stock data in real time and define portfolios of stocks and monitor their activity and profit/loss; but the WOW-inducing feature is the ability for users to define their own “Stock Indicators” and to have the program automatically deliver alerts based on these. For example, you can tell JStock to alert you by SMS if it finds a stock price that’s at the highest its been for the past 6 months. This may not sound too exciting if you just have one

or two stocks that you are interested in, but JStock will do this for hundreds of stocks that you might want to monitor and define in its database.

 

Here are more notes on this program:

How it works: the main “Real Time Info” tab displays a list of stocks that you can monitor.

Although it is pre-populated when you launch the program, note that you can delete stocks

from the list and add just the ones you find relevant. Also note that you can select the

country of interest and download the entire list of stocks for that country, which is very

convenient. If your stock is somehow not showing you can add it to the database individually.

JStock will now download price changes in real-time for these, and will even chart . Once

you have your list, sorting by column headers can be a great help. I would say, however, that

the list is in need of more filtering options (see my wish list below)

Charting: right click on an individual stock and click “History” to receive an instant 10-year

chart for the stock in question showing both stock prices and trade volume. You can also

request a candlestick chart. You can limit the range of charted data by simply drawing a

rectangle over the time period you are interested in with the mouse.

Alerts: once you set up your desired “Stock Indicators” (see below) JStock can deliver SMS,

Email, or system tray alerts based on these. SMS alerts are 100% free (you need to set up a

Google Calendar account and register your mobile number; more info here). Alerts can be

sent for stocks in your “real time” list, for an entire country’s stock market, for a particular

board such as the NYSE, for a unknown “industries” (I am not sure exactly how JStock

comes up with these), or, perhaps most useful, for the stocks that are user-defined in your

database (choose “user-defined” industry for this one).

Stock Indicators: JStock allows you to create your own

indicators and use these to generate alerts. A visual editor is built

into JStock that allows you to create these without any

programming skills; however, it helps to know what you are going

after ;). I simply re-created the indicator that was described in the

help section and it was apparent to me just how powerful and

versatile these indicators could be. The image to the right shows

an alert that will be triggered when the stock’s current last price is

the maximum it has been for the past 14 days. Very cool!

Portfolio Management: this is where you can record transactions that occur on a list of

stocks and keep track of your profit and loss. I did not really use this, but I imagine that it

would be extremely value added

Chatting: I was not able to find anyone to chat with; either there were no users online or I set

it up incorrectly (although the set-up seemed super easy).Wish list:

Tagging: it would be great if you could create custom tags and associate them with stocks

(perhaps in the user-defined stocks database entries), and then use these later for

filtering/grouping, for alerts, or other operations.

Filtering: I found it strange that are no means to isolate a stock or group of stocks in a list

and view these in isolation. You cannot even type in a stock ticker symbol and filter it out

from the list. What would be tremendously value-added is if you could filter each column

Excel-style using certain criteria (e.g. only if the Chg% is larger or smaller than a certain

value, etc). Of course you can currently create Stock Indicators and filter lists that way, but it

would be so much more user-friendly to be able to filter on-the-fly.

Downloading: ok so I charted the past 12 months for stock x; now can I please download

these into CSVl? A strange omission.

Chart range pre-sets: as in “the past week”, “the past 1 month”, “2 months”, “1 Year”, etc.,

to be selected from a dropown. Another very strange omission.

Pre-defined indicators: it would be cool if the program with a few “clever” or value added

indicators pre-defined, to get people started with indicators.The verdict: this program one of the best in its category. It could use a streamlining of the user interface to make it more user-friendly, but it makes up for that in the power that it has under the hood and the sheer ambition of its covered functionality. Occasional or regular investors alike will find this program very useful and value added. Highly recommended!

Version Tested: 1.0.4i