# Hold-out

Does it hold on price history it was never tuned on?

## Pass level

- Share of the history held back: 30%
- Profit factor on unseen data: above 1

Thresholds version 1.19.0

A test that stops at this check reads Killed at the hold-out.

- [Forge help ↗](https://oathra.app/en/forge/methods#hold-out)