Why did you start Nothing But Alpha?

We tested our own stock-picking models against strict, pre-registered standards. None of them passed. So we're building the tools that would have caught it sooner.

Details

• Along the way we saw how easy it is for a track record to look better than it was. Proof of Call is built to make quiet rewrites show.
• The checks in Backtest Auditor come from the process we used on our own models, which found real data errors along the way.

That's all we've published about our history.