Google Performance Max campaigns just got a mobile boost. On October 14, 2025, the platform rolled out support for vertical 9:16 image ads. This update lets brands create eye-catching “Story Image Ads” that fit seamlessly into short-form video feeds. Google Ads expert Thomas Eccel first spotted the change. It mirrors features from Demand Gen campaigns launched earlier this year. Now, Google Performance Max taps into the vertical format explosion on platforms like YouTube Shorts. Advertisers chase higher engagement in a world where mobile scrolls dominate 70% of ad views. This tweak promises better relevance and clicks for e-commerce pros and creators alike. Search “Google Performance Max vertical ads” trends as marketers gear up for holiday rushes.
Why Vertical Ads Supercharge Google Performance Max
Vertical 9:16 images shine in mobile-first spots. They blend naturally into YouTube Shorts, Instagram Reels, and TikTok-style content. Users spend more time there—up to 90 seconds per session. Phil Byrne, founder of Positive Sparks Marketing LTD, says it nails “meeting users where they naturally consume content.” No more awkward cropping or lost impact.
Key specs for these Google Performance Max vertical ads:
- Minimum Size: 600×1067 pixels (recommended: 1080×1920 for crisp quality).
- Maximum File Size: 5MB—keeps uploads snappy.
- Placement Hints: Likely serves in YouTube Shorts Image spots, based on Demand Gen patterns. Google hasn't detailed all channels yet.
Mike Ryan, head of Ecommerce Insights, points to the bigger play. Google Performance Max already monetises Shorts via “GMC Image Shorts.” These show personalised product carousels for remarketing. The vertical push deepens shoppable media ties. Brands see 15-20% lifts in conversion rates with native formats, per industry benchmarks.
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Rollout starts now for eligible accounts. Test these in your next Google Performance Max setup—pair with AI-generated creatives for max ROI. As short-form video eats ad budgets (projected $50B in 2025), vertical ads keep you ahead. Skip them, and rivals snag the scroll. Dive into Google's Ads help centre for setup guides and watch mobile metrics soar.
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