Agentic Engine Optimization: Why Your Content Strategy Needs Both Human and AI Readers in 2026
Google’s AI director reveals token limits and front-loading strategies. Learn how to optimize content for both human engagement and AI agent parsing…
New research by Adthena uncovers the extent to which Google Shopping ads, commonly referred to as Product Listing Ads (or PLAs), have become the most popular ad format for retail advertisers, with ad spend now far in excess of text ads in retail categories.
Google Shopping ads now drive 76.4% of retail search ad spend, generating 85.3% of all clicks on Adwords or Google Shopping campaign ads. This report benchmarks Google Shopping (PLA) ad spend across 40 million ads in the US/UK. From 267,000 competitors, encompassing over 1 million search terms.
The data reveals the true extent of Google Shopping ad format adoption in the US/UK, among advertisers across retail categories such as Fashion and Apparel, Consumer Electronics and Home & Garden.
“The bigger picture here is the shift in which audiences are consuming new ad formats,” says Ashley Fletcher, VP Marketing at Adthena. “As retailers move ad spend into Google Shopping or mobile campaigns, the retailers who master the nuances of specific categories will be the ones who shape consumer’s ad experiences."
Across US online retail, Google Shopping Ads now make up 76.4% of retail search ad spend, and win 85.3% of all clicks.

23.6% of ad spend generated 14.7% of clicks on text ads. And in the UK, retail advertising spend on Google Shopping Ads now amounts to 82% of retail ad spend, attracting 87.9% of clicks.
UK Google Shopping ad spend was even higher, 82% of ad spend was responsible for driving 87.9% of clicks on shopping ads, and 18% of ad spend drove 12.1% of clicks on text ads.
Within individual categories, ad spend on Google Shopping varied between 64.4% and 86% in the US
UK ad spend on Google Shopping is broadly similar to the US. However, the proportion of ad spend on Google Shopping ads within home and garden, beauty and personal care, and personal health is even higher than in the US

A key theme of this report has been the extent to which the competitive search landscape is changing. For advertisers in the retail space, Adthena recommends three key takeaways:
You can download The Rise of Google Shopping Report and find out how your PLA strategy compares to the competition
By Content Partner
This article is contributed by a Smart Insights Content Partner. To find out how you can become a regular contributor and share your knowledge and experience with our readers, please see our Content Partnership options.
This blog post has been tagged with:
GoogleStrengthen your strategy with RACE-powered templates, frameworks and planning tools designed to help you review performance, identify improvements and build a more effective marketing approach.
Strengthen your strategy with RACE-powered templates, frameworks and planning tools designed to help you review performance, identify improvements and build a more effective marketing approach.
Start your Digital Marketing Plan today with our Free resources.
Recommended Blog Posts
Google’s AI director reveals token limits and front-loading strategies. Learn how to optimize content for both human engagement and AI agent parsing…
OpenAI’s 600 early advertisers hit $100M revenue in 6 weeks, but CTRs trail Google Search. Why conversational ads need different success metrics…
Reddit gained 14.5% visibility while traditional SEO content lost ground. Here’s what Google’s latest algorithm shift means for your content strategy…