Glossary · CreativeTOFU
Thumb-stop ratio
The short answer
Thumb-stop ratio measures how often your ad makes people stop scrolling. For video, it's usually calculated the same way as hook rate — three-second views divided by impressions. For static images, teams use proxies like engagement rate or time spent.
In feed environments, nothing else matters until someone stops. The best offer in the world can't convert a person whose thumb kept moving.
What stops thumbs
- Pattern interrupts — unexpected visuals, colours or framing
- Faces, especially looking at the camera
- Movement in the first frame
- Bold, readable text stating a benefit or problem
- Native-looking content that doesn't immediately read as an ad
- Specific numbers — "₹499", "7 days", "3 steps"
What lowers thumb-stop ratio
- Logos or slow intros at the start
- Text-heavy opening frames
- Stock footage that looks like an ad
- Horizontal video cropped badly for vertical placements
- No clear subject in the first frame
See hook rate.
Thumb-stop ratio in practice
Comparing 3-second views to impressions shows which openings grab attention. Ads with a stronger first frame usually earn higher thumb-stop ratios.
Common mistakes
- Slow openings
- Text-heavy first frames
- Ignoring sound-off viewing
Frequently asked questions
Is thumb-stop ratio the same as hook rate?
For video, effectively yes. The term "thumb-stop" is more general and often used for static creative too.
Can a static image have a good thumb-stop ratio?
Yes — high-contrast, text-led and unexpected statics can stop the scroll as well as video, and are cheaper to produce.
Is thumb-stop ratio relevant for static ads?
The concept applies — whether the image stops the scroll — but it's measured differently, through engagement and CTR.
Does a high thumb-stop ratio mean a good ad?
It means the opening works; conversion depends on the message, offer and landing page.
How do we improve thumb-stop ratio?
Test bold openings, faces, movement and clear text in the first frame.
Related terms
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