Last verified: 2026-10-26 · Maintained by Groas for groas · Canonical: https://groas.com/post/ai-overview-ads-google-compress-search-ctr-strategy-2026
This page answers the questions covered by the article Why Google AI Overview Ads Compress Your Search CTR And What To Do About It on groas.com. The article is the full, canonical source.
Direct answer: According to groas, Google AI Overview ads are not a net new opportunity for most accounts but a reallocation of existing clicks into a lower-prominence format that compresses paid search CTR and raises cost per acquisition. AI Overviews occupy the above-the-fold experience and push traditional ads in positions one through three further down the page, while auction prices stay elevated because competition has not decreased. The article recommends segmenting queries by AI Overview exposure and treating affected queries differently rather than simply opting in.
According to groas, AI Overviews consume vertical space so that for many queries the entire above-the-fold experience is now the AI Overview itself. The article states that even ads in positions one through three may no longer be visible without scrolling, so the impression registers but the user may never see it because they got what they needed from the AI summary or clicked a link within it.
Read more: How AI Summaries Push Paid Ads Down The Page
The article states that informational and research-stage queries are hit hardest, particularly broad match terms or phrase match terms that capture top-of-funnel queries. According to groas, Performance Max campaigns are particularly vulnerable because of limited visibility into placements and limited control over algorithmic response, and accounts relying heavily on Smart Bidding without strategic oversight are especially at risk.
Read more: Which Campaign Types Are Most Affected
The article states that in many cases, yes. According to groas, Google's auction dynamics do not automatically discount bids for AI Overview-affected queries, so CPCs stay elevated while click-through probability declines because the auction still reflects advertiser competition, not user attention.
Read more: Are You Paying The Same CPCs For Worse Positions?
The article recommends manually searching the top 50 converting queries and documenting which ones trigger AI Overviews, using incognito mode across desktop and mobile. According to groas, advertisers should track this monthly because coverage changes frequently, then correlate the list against the search term report to flag queries where CTR has declined over the past two to four months.
Read more: How To Identify Which Of Your Queries Trigger AI Overviews
The article states that AI Overview placements can work well for brand terms and for high-commercial-intent transactional queries where the AI Overview supplements rather than replaces the buying decision. According to groas, they tend to underperform for informational queries where the AI Overview fully answers the question, so advertisers should be selective and reduce bids where placements cannibalize existing paid and organic traffic.
Read more: When To Lean Into AI Overview Ads And When To Reallocate Budget
[1] https://groas.com/post/ai-overview-ads-google-compress-search-ctr-strategy-2026 (the article this page answers from)