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Amazon reported Q1 2026 earnings on April 29, and most of the press coverage focused on the obvious story: AWS growing 28%, Project Hail Mary clearing $615 million at the box office, advertising revenue topping $70 billion on a trailing twelve-month basis.

Real numbers, all of them.

Buried in the supplemental financial information is a different story, one that should reshape how seven-figure brands think about their Amazon exposure in 2026. Amazon’s first-party retail is quietly winning back unit share from third-party sellers while ad revenue accelerates faster than unit growth. 

Both trendlines have been moving in the same direction for over a year. Together they describe a marketplace that is structurally getting harder to win on.

Here is what the numbers say.

Losing Unit Share to Amazon’s Own Retail

Amazon’s news release states that third-party sellers accounted for 60% of worldwide paid units on Amazon in Q1 2026, down from 62% in Q4 2024. Two points in five quarters sounds modest until you run it against total volume.

Worldwide paid units grew 15% year over year in Q1 2026, the highest unit growth Amazon has reported since the tail end of covid lockdowns per Andy Jassy on the earnings call. So the absolute volume sold by third-party sellers is still rising. Amazon’s first-party retail is rising faster, and that trend has held across multiple quarters.

This matters for two reasons. First, every percentage point of share that shifts to first-party means more direct competition from Amazon Retail on detail pages where sellers used to enjoy buy box dominance. Second, it confirms that Amazon’s investments in private label expansion, retail buying, and selection growth are working at scale.

The brands holding their share in 2026 are doing two things differently. They are auditing buy box loss to Amazon Retail itself ASIN by ASIN, not just to third-party competitors. And they are differentiating around brand equity, packaging, and customer experience that Amazon’s first-party operation cannot replicate.

Ad Costs Are Climbing Faster Than the Units They’re Selling

Amazon’s advertising services revenue grew 24% year over year in Q1 2026, reaching $17.2 billion for the quarter. Worldwide paid units grew 15% over the same period. That nine-point gap is the most important number in the earnings release for active sellers.

Translation: brands are paying more per unit of attention than they were a year ago.

Some of this comes from rate inflation as more advertisers compete for the same SERPs. Some comes from new ad surfaces, including sponsored prompts inside Rufus, expanded Sponsored Brands placements, and Creative Agent rolling out to seven additional countries. Even more comes from Amazon’s expansion into off-Amazon inventory through Amazon Audiences for Netflix and Amazon DSP. The mechanism matters less than the directional truth: advertising is taking a bigger share of revenue per unit sold.

In our work across seven-figure accounts, we typically see TACoS climb 100 to 300 basis points in any twelve-month window without disciplined intervention. The brands holding TACoS flat in 2026 are running tight negative keyword hygiene, killing low-converting placements weekly, and refusing to let auto-campaigns drift unchecked.

Rufus Is the New SERP, and It Now Carries Ads

Sponsored Products and Brand Prompts are now live inside Rufus, Amazon’s AI shopping assistant. Rufus monthly active users grew over 115% year over year in Q1 2026, with engagement up nearly 400%. Nearly 20% of shoppers who interact with a Brand Prompt continue the conversation about that brand, per Andy Jassy on the earnings call.

This is the first concrete monetization of the Rufus surface, and it changes the optimization picture for Amazon listings. Detail pages written purely for keyword density are not optimized for Rufus retrieval. Rufus pulls from product titles, bullet points, A+ content, customer reviews, and Q&A to generate answers, and the structure of that retrieval is closer to AI search than to traditional Amazon SEO.

If your top ASINs have not been audited for how Rufus answers questions about them in your category, you have a blind spot. The brands that figure this out in 2026 will get cited in Rufus answers. The brands that don’t will get described around.

Prime Day Just Moved Up Four Weeks

Amazon confirmed Prime Day will run in most countries in June 2026. Prime Day has historically landed in July, so the event has been pulled forward by roughly four weeks this year.

For sellers, the operational deadline just moved. Inventory in transit needs to land earlier. Deal submissions, advertising budgets, creative refreshes, and pre-event promotional flights all compress. If a brand was working backward from a July date, that timeline no longer fits.

What Seven-Figure Brands Should Do Before Q3

Take the four trendlines together. Seller unit share is declining. Ad costs per unit are climbing. Rufus is changing how the SERP and product detail pages get parsed by AI. Prime Day is four weeks earlier. None of these are temporary movements. They describe a marketplace that is getting harder for marginal operators and consolidating around brands that execute with discipline.

The strategic answer for most seven-figure brands runs on two tracks. 

First, tighten Amazon execution

Defensive buy box monitoring against Amazon Retail, weekly negative keyword and placement hygiene, and listing audits for Rufus retrievability. 

Second, build meaningful revenue outside Amazon

Walmart, TikTok Shop, and your own DTC channel matter more in 2026 than they did in 2024. Brands with revenue diversified across three or more channels are structurally more resilient and command higher acquisition multiples than single-channel operators.

The Amazon-only operating model worked for a long time. The Q1 2026 numbers are part of a larger argument that single-channel exposure is no longer the optimal posture.

We work with Amazon and Walmart brands every day, and we see these trendlines in account data before they show up in earnings calls. The accounts that hold margin in environments like this are the ones running tight execution and building durable channel diversification, and that is the work our brand managers do for partners across the $20K to $1.5M monthly revenue range. Our partners average an 84% year over year profit increase, and 99.1% of them stay with us.

Canopy Management delivers end-to-end eCommerce growth, leading the industry in Amazon marketplace strategy while powering expansion through Shopify, Meta, and Google. Our full-funnel approach — from marketplace optimization to customer acquisition — has generated over $3.3 billion in partner revenue and made us the trusted growth engine for brands worldwide.

Schedule a strategy session with our team to discover exactly how our proven frameworks can accelerate your growth.

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