Here’s a significant size variation of product listing ads Google is testing. It was visible this evening from Chrome and I was unable to replicate the test on different browsers. This is a trademarked product query with high commercial intent and a substantial number of conversions result in repeat business.
For retailers investing heavily in PLA spend during the holiday season, this is a huge win. For those relying primarily on organic traffic or haven’t setup PLAs yet, it’s probably time to get your account in order.
Screenshot is freely useable but please reference original source if used.