What CVD tells you that price can't

Every candle you look at is the result of a fight you didn't see. Cumulative volume delta records who was actually attacking, which is why it can disagree with price right before price changes its mind. Here's how to read it, and where it earns its keep.

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Aug 13, 2026

Walk-forward testing, explained for traders

A single backtest tells you how parameters performed on data they were chosen to fit. Walk-forward testing tells you what you'd have earned trading yesterday's best parameters on tomorrow's data, which is the only version of the question that matters. Here's how it works, how to read one, and what it can't do.

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Aug 13, 2026

Where should your stop-loss go? We tested nine answers

Same strategy, same six years of Bitcoin, same entry signals. Depending only on where the stop went, the account finished anywhere between -0.42% and +278.97%. Tighter wasn't safer, wider wasn't richer, and the config with the best win rate was one of the worst performers.

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Aug 12, 2026

We found a prop-firm strategy that beats buy and hold

It passes 99% of simulated FTMO-style challenges, and over six years it returned more than holding Bitcoin at under half the drawdown. Six parallel searches found it, and the change that made it work was deleting a single line, the take-profit.

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Aug 11, 2026

We ran the same strategy at four levels of honesty

One strategy, one dataset, one set of signals, and four different assumptions about what trading costs. The best version returned +34% with a Sharpe of 1.23. The honest version lost 59%. Nothing changed except how much we admitted about fills and fees.