Glossary · Metrics

Thumbstop ratio

Thumbstop ratio is the share of impressions in which people watched at least the first three seconds of a video ad. It shows how well the opening stops the scroll. It is an industry metric, not a standard Ads Manager column.

Also called: thumb-stop ratio, thumbstop rate, scroll-stop rate, 3-second view rate

Formula

Thumbstop ratio = 3-second video plays ÷ impressions × 100

12,000 three-second plays from 40,000 impressions = a thumbstop ratio of 30%.

Thumbstop ratio measures how often your video ad stops someone scrolling. It divides 3-second video plays by impressions. Meta doesn't offer it as a ready-made column, so advertisers build it as a custom metric in Ads Manager or calculate it in a spreadsheet. Many people use thumbstop ratio and hook rate to mean the same thing.

Thumbstop ratio vs hook rate vs hold rate

Metric Usual formula What it judges
Thumbstop ratio 3-second plays ÷ impressions The opening frame and first words
Hook rate Usually the same as thumbstop ratio The same, under another name
Hold rate ThruPlays (or 15-second plays) ÷ 3-second plays Whether the middle keeps attention

Some teams define hook rate slightly differently, for example using plays at a different second mark. When you compare numbers with an agency or a tool, agree on the formula first.

How to calculate it in Ads Manager

  1. Open Columns, then Customise columns, then Create custom metric.
  2. Divide 3-second video plays by impressions and format the result as a percentage.
  3. Save it in a column preset with ThruPlay, CTR and cost per purchase, so you can read the whole funnel in one view.

Remember that 3-second plays can include autoplay with sound off. The ratio tells you whether the picture stopped the scroll, not whether anyone heard your voiceover.

Worked example

Example: three versions of the same video, each with 40,000 impressions.

Opening 3-second plays Thumbstop ratio
Logo animation 6,000 15%
Product in hand, close up 10,000 25%
Customer saying the problem out loud 13,200 33%

The third opening wins the scroll. Whether it also wins sales depends on hold rate, CTR and conversion rate, so keep it only if those hold up.

What is a good thumbstop ratio?

It varies by placement, category and audience. Reels and Stories viewers behave differently from Feed viewers, so compare like with like. Use your own best ads as the benchmark and look for openings that beat them.

How to improve it

  • Put the most surprising or relevant thing in the first frame, not a logo.
  • Show a face, a hand or the product moving, since motion catches the eye.
  • Add burned-in captions for sound-off viewing.
  • Test several openings on the same body. Our guide to Reels ad hooks has patterns to try.

Thumbstop ratio is one of the first signals of ad fatigue: when it slides while frequency climbs, the opening has worn out.

Frequently asked questions

What is thumbstop ratio?

Thumbstop ratio is the percentage of impressions in which someone watched at least three seconds of your video ad. It is calculated as 3-second video plays divided by impressions, and it tells you how well the opening stops people scrolling.

Is thumbstop ratio the same as hook rate?

In most teams, yes. Both usually mean 3-second video plays divided by impressions. Some define hook rate at a different second mark, so agree the formula before comparing numbers across tools or agencies.

Where do I find thumbstop ratio in Ads Manager?

It isn't a built-in column. Create it as a custom metric in Ads Manager by dividing 3-second video plays by impressions, then save it in a column preset next to ThruPlays, CTR and cost per purchase.

What is a good thumbstop ratio for Meta ads?

There's no official benchmark, and results vary by placement, category and audience. Compare openings against your own best-performing ads, and keep a high-thumbstop opening only if CTR and conversions hold up too.

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