Google's AI Overviews Are Cutting Shopping Ad Impressions While Boosting Click Rates
A new pattern in Google Shopping performance suggests AI Overviews are showing ads to fewer people, but those who see them are more likely to click. Here's what that means for your ad spend.
The 5-second version
- Shopping ad impressions are dropping while click-through rates are rising, a reversal tied to how Google deploys AI Overviews
- Higher CTR alone doesn't signal better ad performance if the ads are simply appearing to fewer, more qualified users
- Business owners relying on impression volume for brand visibility may need to reassess Shopping campaign strategy
Google's AI Overviews are reshaping how Shopping ads perform, and the pattern is counterintuitive. According to analysis by Mike Ryan, head of ecommerce at Smarter Ecommerce, Shopping ad click-through rates are climbing while impressions are falling. That reversal hints at a deeper shift in where and how Google places product ads on the results page.
The Crocodile Effect Hits Shopping Differently
Ryan describes AI Overviews as creating the SEO "crocodile effect", publishers get more impressions but lose clicks as Google funnels traffic into the AI summary. Shopping ads, however, appear to be flipping that dynamic. Fewer people see them, but a higher percentage of those who do click through.
This isn't necessarily good news. A rising CTR masked by falling impressions can fool you into thinking your ads are stronger when they're actually just reaching a smaller, more intent-heavy slice of searchers. Impression volume matters if you're chasing brand awareness or traffic velocity. Cost-per-click and conversion rate are what actually tell you whether the campaign is working for your bottom line.
Why This Matters for Your Ad Budget
If AI Overviews are reordering the search results page, with the AI summary, organic links, and then Shopping ads layered differently, your ad placement is shifting. Fewer impressions mean fewer total opportunities to win a sale. That forces you to rely on higher conversion rates from a narrower audience just to hit the same revenue target.
What You Should Track Instead
- Conversion rate (clicks that become sales, not just page visits)
- Cost-per-acquisition (what you actually pay per customer, not per click)
- Return on ad spend (revenue divided by total ad spend)
- Impression share in your category (are competitors eating your visibility?)
The takeaway: Google's AI Overviews are reshaping the search results layout, and Shopping ads are caught in that shift. You can't rely on CTR and impression metrics alone to gauge whether your campaign is healthy. Dig into the numbers that matter, conversions, revenue per ad dollar, and market share, to know if the platform change is helping or hurting your business.
Questions owners ask
Why is my Shopping ad CTR going up if impressions are falling?
Google's AI Overviews may be showing your ads to a narrower, more qualified audience rather than a broad one. A smaller group of highly interested shoppers clicks more often than a large group of casual browsers, even though fewer people see your ads overall.
Does higher click-through rate mean my Shopping ads are performing better?
Not necessarily. A rising CTR paired with falling impressions can mean Google is simply changing who sees your ads, not that your creative or offer is suddenly more compelling. You need to watch conversion rate and cost-per-acquisition to know if the campaign is actually healthier.
How is AI Overviews affecting my Shopping ad visibility?
AI Overviews take up premium space on Google's search results page, potentially reducing the real estate available for Shopping ads. This shrinks the number of times your ads appear, but may concentrate them in front of searchers more intent on buying.
Should I change my Shopping ad strategy because of this pattern?
Yes. Stop treating impression count and CTR as your primary success metrics in isolation. Shift focus to conversion rate, cost-per-sale, and return on ad spend, which reveal whether the fewer, higher-intent clicks are actually profitable for your business.
