Cheapest perp DEX, live all-in cost from $1k to $1M on ETH, BTC and SOL
Trading| Provider | All-in cost | All-in at $100k | All-in at $1M |
|---|---|---|---|
| GMX | 0.060% | 0.060% | 0.060% |
| Polymarket | 0.042% | 0.054% | 0.079% |
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GMXn/aPolymarketn/a
GMX vs Polymarket
GMX leads on 1 of 3 shared benchmarks, Polymarket on 2. GMX wins on Perp DEX volume share, live 24h notional ranked ($56.49M vs $36.53M). Polymarket wins on Cheapest perp DEX, live all-in cost from $1k to $1M on ETH, BTC and SOL (0.042% vs 0.060%), Perp DEX volume to open interest (0.383x vs 0.947x). Data as of 2026-10-10 UTC.
GMX
Perp DEX on Arbitrum and Avalanche. Pool-based execution against GLP and GM vaults, oracle-priced trades with no orderbook.
Polymarket
The largest crypto prediction market, settled on Polygon via UMA optimistic oracle. CLOB-style order book hosted on the Polymarket gateway with sub-second publish latency for live odds.
Side by side measurements
Perp DEX volume share, live 24h notional ranked
TradingGMX
Leads$56.49M
- p99
- $83.54M
- rank
- #17
- samples
- 2,880
Polymarket
Trails$36.53M
- p99
- $65.32M
- rank
- #19
- samples
- 2,880
24h perp volume
GMXn/aPolymarketn/a
Perp DEX volume to open interest: 24h turnover per dollar of OI, live
TradingGMX
Trails0.947x
- p99
- 1.401x
- rank
- #9
- samples
- 2,880
Polymarket
Leads0.383x
- p99
- 0.684x
- rank
- #4
- samples
- 2,880
Volume / OI (24h)
GMXn/aPolymarketn/a
The ratio is a screen, not a verdict. Both terms are the venue's own figures (24h volume and open interest as each API reports them, in USD), so a venue that counts both legs of a fill moves its ratio without changing anything real. A very low ratio (Ostium, 0.2x) means positions held for days on thin daily volume; a very high one (Kalshi, above 40x) means a day of trading dwarfs what stays open. The bands in the methodology say what each range usually means.
Frequently asked questions
GMX vs Polymarket: which one is better?
GMX and Polymarket are compared on 3 shared OpenChainBench benchmarks. GMX leads on Perp DEX volume share, live 24h notional ranked. Polymarket leads on Cheapest perp DEX, live all-in cost from $1k to $1M on ETH, BTC and SOL. See the live table on this page for every metric.
Which has the higher 24h perp volume, GMX or Polymarket?
On the Perp DEX volume share, live 24h notional ranked benchmark, GMX leads at $56.49M versus Polymarket at $36.53M. Live measurement is updated continuously by the OpenChainBench harness.
Which is cheaper, GMX or Polymarket?
On the Cheapest perp DEX, live all-in cost from $1k to $1M on ETH, BTC and SOL benchmark, Polymarket leads at 0.042% versus GMX at 0.060%. Live measurement is updated continuously by the OpenChainBench harness.
How is the GMX vs Polymarket comparison measured?
Every benchmark on this page uses the same open methodology, published at https://openchainbench.com/methodology. Data is CC-BY-4.0. Measurement harnesses are MIT-licensed.
Related comparisons
How this pair was selected
Auto-generated pairs require: both providers in the same benchmark for seven consecutive days, at least 1000 samples per provider, observable third-party search demand, and a public /products/[slug] page on OCB. Editorially curated pairs (like this one) may publish early when search demand is high and data is accruing; panels with fewer than 100 samples are shown as provisional. The full pair ledger is versioned in the public repo.