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- •Just 7,760 sellers (1.6% of active sellers) generate 50% of Amazon's ~$300B US 3P GMV
- •Down from ~15,000 sellers three years ago. Average revenue per top seller doubled to ~$20M
- •US sellers represent 55% of the top cohort but control 67% of the GMV
- •The "Great Compression" is driven by rising fees, tariffs, and ad costs squeezing smaller sellers
Nova surfaces every Amazon fee, refund, and margin shift in your live P&L, across 21 marketplaces. See it in your data
What's Happening
Amazon's marketplace is consolidating faster than most sellers realize. According to Marketplace Pulse data published February 12, 2026, just 7,760 sellers now generate 50% of all US third-party GMV. That's roughly $150 billion in annual sales controlled by the top 1.6% of active sellers. Similar moves have hit the dashboards we maintain for agencies before the official Amazon comms even land.
Three years ago, that same 50% threshold required about 15,000 sellers. The number has nearly halved. Average revenue per top-tier seller has doubled to approximately $20 million annually. US-based sellers make up 55% of this elite cohort but control 67% of the GMV, highlighting a geographic concentration on top of the seller concentration.
Marketplace Pulse calls this the "Great Compression." It's driven by three compounding forces: rising Amazon fees that squeeze smaller operators, escalating ad costs that favor sellers with deeper pockets, and tariff pressures that disproportionately hit importers without scale. The result is a marketplace that's growing overall but shrinking in terms of who captures the value.
Top Sellers
7,760
Control 50% of US 3P marketplace GMV
GMV Concentration
50%
Of ~$300B US 3P GMV from top 1.6%
Avg Revenue per Top Seller
~$20M
Doubled from ~$10M three years ago
The Concentration Data
The numbers paint a clear picture of how top-heavy Amazon's marketplace has become. Here's the full breakdown of seller concentration tiers:
| Seller Count | % of Active Sellers | Share of US 3P GMV | Est. GMV per Seller |
|---|---|---|---|
| 111 | 0.02% | 10% | ~$270M |
| 1,020 | 0.2% | 25% | ~$74M |
| 7,760 | 1.6% | 50% | ~$20M |
| ~480,000 | 98.4% | 50% | ~$310K |
Geographic Breakdown
US-based sellers represent 55% of the top cohort but generate 67% of the GMV. Chinese sellers, while numerous in the broader marketplace, are underrepresented at the very top. This suggests that proximity to US consumers, faster shipping, and stronger brand-building capabilities give domestic sellers an edge at scale.
What the "Great Compression" Means for You
Smaller Sellers Are Getting Squeezed
The math is brutal. If you're doing under $1M annually on Amazon, you're competing against sellers who can absorb fee increases, outbid you on ads, and negotiate better supplier terms. The fixed costs of selling on Amazon (software, compliance, advertising minimums) consume a much larger percentage of revenue for smaller sellers. This doesn't mean small sellers can't succeed. It means they need to be more strategic about where they compete.
Profitability Beats Volume
The sellers in the top 1.6% didn't get there by chasing revenue at any cost. They got there by building efficient operations with strong unit economics. In a consolidating market, the sellers who prioritize profit margins over top-line growth are the ones who survive. Revenue without profit is just a more expensive way to go out of business.
Niches Still Work
Concentration at the top doesn't mean opportunity has vanished. It means broad, commodity categories are dominated by mega-sellers. The opportunity for mid-market sellers ($500K to $5M) lies in specialized niches with defensible differentiation: proprietary products, strong brand loyalty, or underserved subcategories. Use data to find where the big players aren't looking.
What You Should Do Now
- 1.
Focus on Profitability Over Volume
Stop measuring success by revenue alone. Track net profit per SKU after all fees, ad costs, returns, and COGS. Cut products that aren't contributing to the bottom line. The sellers getting squeezed out are typically the ones who couldn't tell which products were actually making money.
- 2.
Build Operational Moats
Efficient supply chains, fast inventory turns, and low return rates compound into meaningful advantages over time. Invest in better forecasting to avoid stockouts and overstock fees. Negotiate better terms with suppliers by committing to larger, predictable orders. These operational advantages are what separate the top 1.6% from everyone else.
- 3.
Use Data to Find Underserved Niches
The mega-sellers dominate high-volume categories. Your advantage is agility. Use custom analytics to identify subcategories where competition is lower, margins are better, and you can build a defensible position. Look for products where the top sellers are underinvesting in listing quality or ad coverage.
How Nova Helps
Compete Smarter in a Consolidating Market
Nova's Profit and Loss Analytics give you the product-level visibility that top sellers rely on. Know your true margins after every fee, ad dollar, and cost input. You can't compete with $20M sellers on budget. You can compete on efficiency.
Winners and Losers Automatically identifies which products are driving profit and which are dragging you down. In a compressed market, cutting losers fast is the difference between growing and shrinking.
Use Day-to-Day Performance Tracking to spot trends before they become problems. When the market is consolidating, you can't afford to wait for monthly reports to make decisions.
Sources
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Frequently Asked Questions
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Verified Sources
- Marketplace Pulse: Top Seller Concentration (Feb 2026)
- Marketplace Pulse: Amazon Year in Review 2025
All information verified from official Amazon sources and trusted industry analysts as of publication date.
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