Semrush Study: Google AI Overviews Nearly Double to 88% of Commercial Searches

For the first year after Google launched AI Overviews, SEO and growth teams comforted themselves with a widely repeated rule of thumb: Google’s AI summaries mostly show up on top-of-funnel informational questions (“how to tie a tie”), leaving high-intent commercial searches (“best CRM for small business” or “HubSpot vs Salesforce”) untouched for traditional organic links. According to a 12-month longitudinal study just published by Semrush, that buffer is officially gone.

Tracking the exact same 400 U.S. desktop commercial keywords across banking, software, and ecommerce from September 2025 through August 2026, Semrush researchers Luke Harsel and Nikola Manojlović found that Google AI Overview coverage nearly doubled from 45.75% to 88.0%. Even more starkly, when those 400 buyer-intent keywords are weighted by monthly search volume, AI Overviews now appear on 97.08% of commercial search demand—meaning the 12% of keywords that still show a classic ten-blue-links SERP account for less than 3% of total search traffic.

Every single commercial modifier group that buyers use right before pulling out a credit card—Alternatives, Brand vs. Brand, Best X for Y, Pricing/Cost, and Reviews—now triggers a Google AI Overview between 82.05% and 96.12% of the time. Product and service Review queries saw the single biggest explosion over the 12-month window, surging +58.90 percentage points from just 30.14% in September 2025 to 89.04% in August 2026.

Similarly, by industry vertical, Ecommerce searches experienced the sharpest jump—climbing +52.49 points from 32.62% to 85.11%—joining Software and Banking in the 85% to 91% coverage band. For marketers, founders, and publishers, the takeaway is unmistakable: ranking #1 in traditional organic results on buyer-intent keywords no longer puts your brand at the top of the page unless you are also cited inside the AI Overview box.

Fast Facts: Semrush 12-Month Study of Google AI Overviews on Commercial Keywords

• Study Methodology & Authors: Conducted by Luke Harsel and Nikola Manojlović at Semrush (with additional coverage by Search Engine Land), tracking 400 U.S. desktop commercial keywords across 5 buyer-intent modifiers and 3 industries from September 2025 to August 2026.
• Overall Commercial Surge (1.92x): Unweighted AI Overview coverage rose from 45.75% (Sept 2025) to 88.0% (Aug 2026)—and reached 97.08% when weighted by estimated monthly search volume.
• Biggest Modifier Jump (“Reviews”): Queries containing “review” or “reviews” jumped +58.90 percentage points, from 30.14% to 89.04%.
• Highest Total Coverage (“Best X for Y”): Queries like “best smartwatch for women” or “best credit union for car loan” surged +53.40 points from 42.72% to 96.12%.
• 100% Coverage Categories: Three industry-modifier cells hit 100% AI Overview saturation in August 2026: Banking “Best X for Y”, Software “Best X for Y”, and Software “Alternatives”.
• Ecommerce Closes the Gap: Ecommerce commercial queries jumped from 32.62% to 85.11%, putting all three studied industries (Banking, Ecommerce, Software) between 85% and 91% coverage.

Full Data Breakdown: Commercial Search Modifiers (Sept 2025 vs. Aug 2026)

The table below shows the exact 12-month shift across all five bottom-of-funnel keyword modifiers tracked in Semrush’s dataset.

What 88%–97% Commercial AI Overview Saturation Means for Your SEO Strategy

When 96% of “Best X for Y” searches and 100% of software “Alternatives” searches open with a full-screen Google AI Overview, traditional bottom-of-funnel SEO playbooks have to adapt immediately:

1. Why “Ranking #1” Is No Longer the Top of the Funnel

As Semrush noted in its report, ranking #1 organically for a high-converting comparison or review keyword no longer guarantees the lion’s share of clicks. On desktop and mobile alike, Google’s AI Overview pushes the first organic blue link below the fold and pre-answers the buyer’s comparison matrix—listing 3 to 5 shortlisted brands, their starting prices, and their pros and cons directly inside the SERP.

2. Why “Reviews” and “Pricing” Pages Must Be Machine-Readable

Look closely at the two fastest-growing commercial modifiers after “Best X for Y”: Reviews (+58.90 pts to 89.04%) and Pricing & Cost (+38.46 pts to 82.05%). When Google’s Gemini-powered search pipeline synthesizes an AI Overview for “price antivirus software” or “[Product] review”, it extracts structured facts—exact dollar tiers, free-trial limits, rating aggregates, and “best for” use-case tags. If your pricing page hides numbers behind a “Contact Sales” wall or renders tier tables via client-side JavaScript without semantic HTML <table> markup, Google’s AI Overview will either omit your product or cite a third-party review site’s outdated guess.

Actionable Playbook: How to Win Citations in Commercial AI Overviews

1. Audit Your Top 50 Commercial Keywords across All 5 Modifiers: Run a check on your core "best [category] for [persona]", "[competitor] alternatives", "[your brand] vs [competitor]", "[your brand] review", and "[your brand] pricing" queries to see which pages Google currently cites inside the AI Overview.
2. Add Semantic HTML Comparison Tables (<table>) Above the Fold on “Vs” and “Alternatives” Pages: Because Software “Alternatives” and “Best X for Y” queries now trigger AI Overviews 100% of the time, structure every comparison page with a clean HTML table containing explicit columns for Target Audience, Starting Price, Key Differentiator, and Free Trial/Open Source Status.
3. Publish Transparent Starting Prices & “Who It’s For” Summaries: To capture the 82.05% of pricing queries that trigger AI Overviews, include clear numeric starting tiers (even for enterprise plans, e.g., “Plans start at $499/mo for up to 10 seats”) in plain HTML text and Product / SoftwareApplication JSON-LD schema.
4. Earn Third-Party Review Mentions on Domain-Specific Publishers: Because 89% of review queries now trigger AI Overviews that cross-reference multiple domains, pair your on-site comparison pages with verified customer reviews and independent industry roundups so Google’s retrieval layer sees corroborated sentiment across multiple URLs.