# Thumb-stop ratio

> Thumb-stop ratio is another name for hook rate: the percentage of people who stop scrolling to watch the first few seconds of a video ad.

Canonical: https://use-addy.site/glossary/thumb-stop-ratio
Last updated: 2026-10-26

Also called: thumbstop rate, thumb-stop rate

**Formula:** Thumb-stop ratio = 3-second views ÷ impressions × 100

The name comes from the gesture: a thumb flicking through the feed, then stopping. Some teams calculate it on 3-second views, others on 2-second views (TikTok's default), so say which one you use when comparing numbers across platforms.

## Related

- [Thumbstop rate explained](https://use-addy.site/blog/thumbstop-rate)
- [Hook rate](https://use-addy.site/glossary/hook-rate)
- [Hook](https://use-addy.site/glossary/hook)
- [Hold rate](https://use-addy.site/glossary/hold-rate)