Pikker 

Dynamic portfolio rotation trading system. A new dimension in technical analysis. Matrix calculations of a list of securities over a date range allow for stock rotation through a portfolio, and a new category of "Market Breadth" indicators.
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PickStock 

Uses principal components analysis to search out potentially underpriced stocks by analyzing a user-supplied database of historical stock prices. The program is believed to be an implementation of what is known as 'arbitrage pricing theory'.
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