In mid April, I started to work on my own short-term algo trading models (not HFT tick by tick stuff, but still an intraday, futures based approach) built on technical indicators, statistical measures and option pricing which have proven quite profitable through my backtesting, even with terrible fee structures. I feel that the strength of my models come from my understanding of how options markets affect futures markets. I will not expand on this point since I am quite sure I have some form of competitive advantage here and frankly, if one knows how options work inside out, it is quite easy to find these relationships.