Very weird, uses Wolfram Research for backtests. This one post flashed warnings:
http://jonathankinlay.com/2016/02/yes-you-can-time-the-market-how-it-works-and-why/
It is Feb 23, 2016 and he claims in that post SPY buy and hold CAGR is 14.75% and the 24-month moving average momentum rule has...