# Cost check

Does it still win after spread and commission?

This check was called Cost stress.

## Pass level

- Costs as a share of gross profit: at most 15%
- Tested again at: 3× the spread
- Costs as a share of gross profit, at that spread: under 25%

Thresholds version 1.19.0

A test that stops at this check reads Killed at the gates.

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