Botraiders is a french company specialized in individual stock movement prediction. Xavier Bouteiller and Yann Finck use artificial intelligence to predict which stock will increase or decrease in the following days. Of course they do not explain their algorithms, but they are based on data mining techniques among others.
I had the opportunity to meet Xavier in a small meeting in France. His presentation of their system (Botraiders) was very interesting. They have one bot for each stock. Recently, they started using kind of “managing bots” which interact with individual bots to build portfolios.
Up to know their predictions are free and they post them every day. You can have more information about this company and their project on their blog.