Stock Data

Ive been working on an algorithm for the stock market. Ive been doing a formula that has a 95% success rate for certain stocks. Now down to my point. I am able to have the program created but the problem with this is getting the program to initiate with the stock trading self within a certain timefram. Mean- I cannot get the program to follow the stock market exactly being connected to it. I was thinking about seeing if charles schwabb is able to send their data to this program by their trading programs but it seems the copyright may signify against that. What do you guys think is the best idea to initiate this to connect to the weekly stock market and follow their data as sent?