I want a software that will enable me to input technical factors that will buy and sell stocks from a certain set of rules. For example, and this isn't what I want do, so dont think I would make a trading system based on this example, but lets say I write a script that will buy a stock when the 50ma crosses over the 200ma and sells when it breaks the 50ma. Then I would use historical data and test it on hundreds of stocks to see my % of winning.
Is there a software like this for free? If there isnt, I would be more than happy to purchase it.