Marketplace Revenue Concentration
Top 50 vendors versus the rest of the marketplace across GMV concentration, seller share, order intensity, pricing, category breadth, and review performance.
Marketplace GMV
$15.84M
Across 3,095 sellers
Full seller base benchmark
Top 50 GMV Share
32.2%
$5.11M captured by the top cohort
Vs 1.6% of sellers
Top 50 Seller Share
1.6%
50 of 3,095 marketplace sellers
Highly selective cohort
Pareto Threshold
18.2%
Of sellers account for about 80% of GMV
Concentration multiple 20.0x
Concentration Snapshot
What stands out
The marketplace shows a meaningful but not extreme winner-take-most shape: a very small seller cohort drives a disproportionately large share of GMV, while the long tail still contributes most of the remaining revenue in aggregate.
- Share imbalance: the top 50 account for 32.2% of GMV while representing only 1.6% of sellers.
- Operating scale: top-50 vendors average 24.9x the order volume of the rest of the market and carry 2.9x as many categories on average.
- Pricing and quality: the top cohort has a 1.5x higher median AOV, while review scores are only modestly higher by 0.12 points.
Group Benchmarks
Top 50 vs rest of market
| Group | Sellers | Seller Share | GMV | GMV Share | Avg Orders/Seller | Median AOV | Avg Categories | Avg Review |
|---|---|---|---|---|---|---|---|---|
| Top 50 | 50 | 1.6% | $5.11M | 32.2% | 580.4 | $191 | 5.80 | 4.12 |
| Rest of Market | 3,045 | 98.4% | $10.74M | 67.8% | 23.3 | $128 | 1.99 | 4.00 |
Pareto Curve
Cumulative revenue captured as seller share increases
GMV Share
Revenue split between the top 50 and the long tail
Orders
Average order volume per seller
AOV
Median average order value by group
Category Breadth
Average number of categories served per seller
Review Scores
Average seller review score