My ratio is based on long to short setups i see each day, and a rating i give to each. For monday, otex was the highest rated short. The fact that it failed to break, led to my intraday ratio, which i use to time my entries to never really get negative. I closed most of my premarket shorts at about 10:15, and reversed long when my ratio went firmly positive around 11. I think the reason for the buying contra to the ratio was the fed meeting and shorts covering before it. Last month my ratio said tank the day before the fed, and we went up only to crash on the fed. I thik the same happens tues as well.