Subject: Re: Statistics for Nasdaq 100 monthly Momentum Screen
In my tests you didn't get that much variance and it will be chance if by coincidence you pick the worst vs. the best start day.
I don't want to keep track myself of how many days it's been so for memory I shoot for the 1st calendar day of each month no matter what I had backtested; I don't criticize myself if I miss a day, either. There will be randomness on whether you trade on a crazy day or at a crazy moment; with 25% CAGR you can cover a lot of error and randomness.