Amazon’s advertising revenue hit $19.8 billion in Q2 2026, up 26% year over year, its strongest growth rate in six quarters and an acceleration from the roughly 22% pace of the previous four. On a trailing twelve month basis, the ads business is now running at $76.1 billion. For context, that growth rate nearly doubled Alphabet’s 14% ad growth over the same period, despite Amazon working from a much smaller base.
The headline number is easy to skim past. The detail underneath it is more useful, because it tells you where Amazon is actually pointing its ad inventory, and where the competitive pressure on your account is coming from next.
What’s Driving the Acceleration
1. Sponsored Products is still the engine
CEO Andy Jassy was direct about this on the earnings call: “Sponsored Products continues to be our largest offering and a key driver of growth.” Despite two years of DSP expansion, streaming ad launches, and AI creative tools, the format most sellers already run is still doing the heavy lifting. That matters because it means Amazon’s incentive to keep improving auction dynamics, targeting, and placements for Sponsored Products isn’t going away, it’s the thing paying for everything else.
2. Sports inventory sold out completely
Thursday Night Football, the NBA’s inaugural season on Amazon, the WNBA, and NASCAR all sold out their advertising inventory in the quarter. Brands running campaigns across multiple sports properties saw 2.3x higher unduplicated reach, with 12% higher spend and 17% more orders than single-sport advertisers. Amazon also said it brought on more than 30 new advertisers to the NBA in its first year carrying games.
None of this is Sponsored Products or Sponsored Brands inventory directly, but it’s a signal worth reading: big-budget brand advertisers are pouring money into Amazon’s premium video slots, and that demand doesn’t stay contained to DSP. It tends to spill into higher competition across the rest of the ad stack as those same brands defend shelf space with Sponsored Products and Sponsored Brands too.
3. AI tooling is measurably lowering costs, for now
Amazon reported that advertisers using Ads Agent, its natural-language campaign management tool, saw 8% lower cost per impression and 6% lower cost per acquisition, with the tool now live in 11 more countries. Separately, shoppers who click a Sponsored Prompt (the AI-generated conversational ad units) convert 48% more often and spend 21% more than shoppers who don’t. Amazon made Sponsored Prompts billable back in March, and the conversion data suggests that decision is paying off for advertisers willing to test the format, not just for Amazon.
What This Means for Sellers
Expect more competition for the same inventory, not less. Accelerating ad revenue growth on a base this large means more advertisers bidding, more aggressively, across every placement type. If your CPCs have been creeping up without an obvious change on your end, this is part of the explanation: overall demand on the platform is rising faster than it has in over a year.
Sponsored Prompts are worth a real test, not a dismissal. A 48% lift in conversion rate for shoppers who engage with a prompt is a big number even accounting for selection bias (people who click a prompt were probably already closer to buying). If you haven’t enabled or budgeted for prompt placements yet, this is the point where “wait and see” starts costing you incremental sales you can’t easily win back.
Don’t over-read the 26% headline in isolation. Prime Day fell inside Q2 this year (June 23-26) instead of Q3 as it did in 2025, which flatters the year-over-year comparison. Third-party spend trackers actually showed ad spend dipping during Prime Day itself, even as the platform-wide quarterly number looked strong. Treat the 26% figure as directionally real, Amazon’s ad business is genuinely accelerating, but not as a clean apples-to-apples read on demand intensity week to week.
If you haven’t tried Ads Agent, the cost data is a reason to. An 8% cut in cost per impression and 6% lower cost per acquisition, reported directly by Amazon rather than a third party, is a meaningful enough gap that it’s worth running a controlled test on a subset of campaigns rather than dismissing it as marketing copy.
The practical takeaway is simple: Amazon’s ad business isn’t just bigger, it’s growing faster than it has in over a year, and that growth is being funded by real competitive pressure on the inventory sellers already rely on. The accounts that adapt fastest, testing Prompts, piloting Ads Agent, and keeping bid strategies responsive rather than static, will be the ones absorbing that pressure best instead of just paying for it.
