Research
Original backtests on 13 years of stock data. Each page leads with the result, shows the costs and controls, and says what the test cannot tell you.
Top Gainer And Loser Lists
No. Buying stocks off daily top-gainer or top-loser lists lost money after costs, and lost about twice as much as buying random stocks. Shorting the lists looked slightly positive on paper, but it does not survive higher costs.
Oct 19, 2026 · 5 min read
Classic Stock Signals
No signal we tested picked winning stocks reliably. For all eight, the top-ranked 10% of stocks returned about the same as the average liquid stock, well within the range of luck. The one pattern that showed up was at the other end: the worst-ranked stocks did badly, so avoiding them helped slightly.
Oct 19, 2026 · 6 min read
Shorting After A 20% Drop
Not reliably. Shorting stocks that fell 20% or more in a day made +1.87% per trade in 2026, which looked like an edge. Tested on the 13 years before that, with rules set in advance and realistic costs, the same trade averaged -0.33% and was not statistically different from zero. It did beat shorting random stocks, but both lost money.
Oct 19, 2026 · 6 min read
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