Get in touch — especially if we got something wrong

This site publishes a lot of arithmetic — base rates, beat counts, Sharpe figures, and plain-language descriptions of how each indicator is built. We check it, and we still get things wrong: a recent internal review found our description of how RSI is calculated was wrong in a way that would have changed the number by roughly 18 points on a worked example. It was fixed the same day.

If you spot an error, email it with the page URL and we will correct it and say what changed. Corrections are the cheapest evidence that the rest is worth trusting.

What we cannot do: tell you what to buy, sell, or hold. Everything here is research published for education — see the full disclaimer. We do not offer personalised investment advice and will not answer questions asking for it.

Response times. This is a small operation, so we do not promise a service-level agreement we cannot keep. Expect a reply in a few days rather than a few hours, and expect a slower one on anything that needs a backtest re-run to answer properly.

Press, data licensing and partnership enquiries go to the same address — put the word in the subject line and it gets seen sooner.