The Arbitrum perp scene of 2026 includes pool, order-book, and request-for-quote models. GMX v2 uses oracle references with market-specific net price impact. Ostium lists forex, gold, indices, stocks, and crypto markets. Gains Network's gTrade still owns the extreme-leverage forex niche. Vertex, a fixture of older lists, wound down its Arbitrum exchange and migrated to the Ink L2 in mid-2025. This guide ranks what is actually live in July 2026, with fees and leverage pulled from the same dataset that powers the rest of PerpFinder.
Key takeaways
- GMX v2 charges 0.04% or 0.06% when a trader opens or closes. Net price impact and other costs can also apply.
- Ostium charges a 0.03% to 0.05% opening fee and no base closing fee. Oracle service, spread, and rollover costs can also apply.
- gTrade (Gains Network) offers up to 1000x on selected forex pairs; fees are pair-specific rather than a flat venue-wide rate.
- ApeX Omni gives Arbitrum users a CEX-style order book at 0.02% / 0.05% with a 20% lifetime referral discount.
- Vertex left Arbitrum for Ink in mid-2025, and Lighter, often mislabeled an Arbitrum DEX, runs its own zk-rollup that settles to Ethereum.
Use the live tools
How we rank
Every fee and leverage figure in this ranking comes from PerpFinder's canonical venue dataset, the same source behind our fees hub and comparison tools. Rankings weigh liquidity and volume durability, all-in trading costs, market range, and how each venue handled stress. Live volume and open interest move daily; check the open interest dashboard for current numbers rather than trusting any static article, including this one.
What changed on Arbitrum since 2025
Three updates matter if you last surveyed this chain a year ago. Vertex Protocol, long the number-two venue, announced a phased shutdown of its Arbitrum DEX in July 2025 and moved its order book technology to the Kraken-backed Ink L2, sunsetting the VRTX token along the way. MUX, the liquidity aggregator, still exists but has faded to marginal volume and is no longer a venue we track. And Lighter, which older articles (ours included) listed as an Arbitrum order book, actually operates as a dedicated zk-rollup anchored to Ethereum; it is a strong venue, just not an Arbitrum one.
Arbitrum perp DEX comparison (July 2026)
| Venue | Base trading fees | Max leverage | Model |
|---|---|---|---|
| GMX v2 | 0.04% or 0.06% on open and close | 100x | Oracle reference, GM pools |
| Ostium | 0.03-0.05% on open; no base close fee | 200x | Oracle reference, RWA + crypto |
| Gains Network | Pair-specific | 1000x | Synthetic vault |
| ApeX Omni | 0.02% maker / 0.05% taker | 100x | Order book (StarkEx) |
| MYX | 0.045-0.055% per executed position change at VIP Tier 0 | 100x | OI-balance pool |
| EdgeX | 0.012% maker / 0.038% taker | 100x | Order book (StarkEx) |
| Hibachi | 0% maker / 0.045% taker | 50x | Order book (zk) |
| Variational | 0% | 50x | RFQ |
GMX, Ostium, and MYX use position-fee models. Order-book venues use maker and taker fees.
1. GMX v2 — the anchor venue
GMX isolates each v2 market in its own GM pool. GMX charges 0.04% or 0.06% when a trader opens or closes. The rate depends on whether the order improves the open-interest balance. A position decrease or close also receives market-specific net price impact. Major markets can allow up to 100x leverage.
The limits are structural. Pair count stays around 30-plus because every market needs its own funded pool, and oracle updates arrive in seconds rather than milliseconds, so scalpers chasing sub-second moves are in the wrong place. For swing traders and anyone moving size on majors, GMX's years of audits and unbroken security record are exactly what you want. Liquidity providers earn the trading and borrow fees; yields float with volume rather than being fixed.
2. Ostium — RWA perps, and the chain's growth story
Ostium lists forex pairs, commodities, equity indices, ETFs, stocks, and crypto majors. It uses oracle prices and a pool request-for-quote design. The opening fee is 0.03% to 0.05% by market. Ostium does not charge a base closing fee. It charges a $0.10 oracle service fee when a trader opens. A successful full close refunds that oracle fee. Spread and rollover costs can also apply. Select forex, gold, and index markets allow up to 200x leverage.
The caveats: it is younger than GMX, its oracle-priced RWA markets follow traditional trading hours for some assets, and extreme leverage on any venue is a tool for tight-stop tactics, not conviction holds. A points program rewards early volume.
3. Gains Network — the gTrade leverage specialist
gTrade pioneered synthetic multi-asset perps backed by collateral vaults. It lists crypto, forex, commodities, and stock perps with pair-specific opening and closing fees, and its calling card is leverage: up to 1000x on forex pairs, with lower caps on crypto and equities. High leverage on low-volatility FX is a legitimate structure borrowed from traditional retail forex, but position sizes at the extremes are capped by vault capacity, and the vault-counterparty model means the pool profits when traders lose. gTrade earns its slot for the asset range and for surviving multiple market cycles; it shares the RWA niche with Ostium now rather than owning it.
4. Apex Omni — the order book option
ApeX Omni is the closest thing to a CEX experience with Arbitrum deposits: off-chain matching with StarkEx settlement proofs, zero gas per trade, and around 45 markets at up to 100x. Base fees are 0.02% maker / 0.05% taker, and the referral program cuts 20% off for the account's lifetime, the largest standing discount among these venues. The trade-off is the hybrid trust model: matching happens off-chain, so you rely on the operator between settlement proofs, unlike GMX or Ostium where execution is fully on-chain.
The newer wave
Four smaller venues round out the tracked set. EdgeX runs a StarkEx order book at aggressive 0.012% / 0.038% rates. Hibachi charges nothing on the maker side and 0.045% taker with zk-verified settlement. At VIP Tier 0, MYX charges 0.045%-0.055% for each executed open, increase, close, or decrease. Variational quotes RFQ-style with zero trading fees at 50x. All are earlier-stage than the top four; treat depth, not fees, as the deciding factor and check their live pages before sizing up.
Which venue for which trader
For a large BTC or ETH order, review GMX's net price impact and full quote. Forex, gold, indices, or stocks on-chain: Ostium first, gTrade if you want the 1000x end. Order book mechanics and CEX-style tools: ApeX Omni, with EdgeX as the low-fee challenger. Fee-minimizers willing to trade on younger books: Hibachi or Variational. Gas will not tie-break anything; every venue here shares Arbitrum's cents-per-transaction costs. Model your own volume with the fee calculator.
What is the best perp DEX on Arbitrum in 2026?+
GMX v2 for most traders, on liquidity depth and track record. Ostium is the pick if you want forex, commodities, or stock perps, and gTrade if you specifically want extreme forex leverage. ApeX Omni suits order book traders.
What happened to Vertex on Arbitrum?+
Vertex began winding down its Arbitrum exchange in July 2025 and migrated its technology to the Ink L2, with the VRTX token sunset and holders compensated in INK. It no longer operates as an Arbitrum perp DEX.
Is Lighter an Arbitrum perp DEX?+
No. Lighter runs its own zero-knowledge rollup that posts proofs to Ethereum. It gets grouped with Arbitrum venues in older articles, but your trades never touch Arbitrum One.
Are these venues open to US traders?+
Generally no; most restrict US persons in their terms and geoblock US IPs. See our guide on whether perpetual futures are legal in the US for the regulated onshore options.
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