The three ad creative metrics that matter

TL;DR

• Read creative performance as a story: thumb-stop (the cover) → CTR (first page) → conversion rate (the ending).¹²
• Thumb-stop ratio = 3-second video plays ÷ impressions (video only). >30% fantastic, 20–30% solid, <15% rework the first 3 seconds.³⁴
• Use unique link CTR, not “CTR” (which counts any click, e.g. on the page name). Smart Marketer’s benchmark is ~1.5%; Meta’s cross-objective average was quoted as ~1.6%.⁵⁶
• High CTR + low conversion = broken “ad scent” — the page doesn’t match the promise or tone of the ad.⁷
• Thumb-stop and CTR show up fast and barely change from $1K to $10K spend; ROAS takes longer.⁸⁹

Details

Who. Ben and John from the Smart Marketer team (surnames not given; John does CRO), on a May 2025 live session.

Thumb-stop ratio. Smart Marketer’s name for what others call hook rate. People scroll for friends’ videos, not ads; this measures whether they pause. A high ratio also helps CPMs, because Meta rewards content people watch.⁸ Set it up in Ads Manager as a custom metric: 3-second video plays ÷ impressions, formatted as a percentage.³ If it’s low: get into the content sooner, test new hooks, interrupt the pattern — borrow (ethically) from engagement-bait videos that are great at stopping the scroll.⁴ In their live poll only about 1 in 4–5 viewers tracked it.¹⁰

CTR. Tells you whether people are interested enough to take step one; a strong hook shows here. Early indicator — no need for big spend.¹⁹

Conversion rate and ad scent. If the ad is emotional and the page is pushy and salesy, or the copy doesn’t connect, clicks don’t close.⁷ John: CTR and conversion are often inversely correlated — shock/curiosity ads (Taboola-style) get huge CTRs and weak conversion; a lower CTR with higher conversion can beat a viral ad.¹¹ Always judge them together, and judge a high thumb-stop against downstream numbers too.⁴

Disagreements / caveats

• App sources here target hook rate 30–40% (Paid social creative testing for apps — levers, hook/hold rate, 3-day tests) — consistent with Smart Marketer’s “>30% is fantastic”.
• The 1.5%/1.6% CTR figures are Meta-wide averages quoted in the session; category and placement vary a lot.

See also

• The Meta ads testing engine for ecommerce — discovery, optimization, scaling — using these in discovery tests

Footnotes

1. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 01:34 — Ben (Smart Marketer) ↩ ↩²

2. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 12:44 — Ben (Smart Marketer) ↩

3. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 14:16 — Ben (Smart Marketer) ↩ ↩²

4. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 15:09 — Ben (Smart Marketer) ↩ ↩² ↩³

5. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 03:58 — John (Smart Marketer) ↩

6. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 04:45 — John (Smart Marketer) ↩

7. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 06:18 — Ben (Smart Marketer) ↩ ↩²

8. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 13:30 — Ben (Smart Marketer) ↩ ↩²

9. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 03:10 — Ben (Smart Marketer) ↩ ↩²

10. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 11:10 — Ben (Smart Marketer) ↩

11. The Only 3 Ad Metrics That Actually Matter (Ignore the Rest) @ 07:54 — John (Smart Marketer) ↩