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Validation Rigor
Aug 16, 2026
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4 min read
I tuned 546 versions of one strategy. Unseen data showed me what I'd actually built.
Aug 11, 2026
2 min read
How one bad year becomes a "seasonal" - and the three line filter that catches it.
Jul 26, 2026
3 min read
You ran five million backtests. Some of those winners are luck — and the standard hurdle cannot tell you which ones.
Jul 19, 2026
You validated on 1 market. There are 3,000.
Jul 12, 2026
History remembers the entry. The data remembers the exit.
Jul 5, 2026
A coin flip scores a 1.93 profit factor on daily SPY. That is the floor a real edge has to clear by margin.
