Extended Review — Live Volume, OI & Fees

Extended Review 2026

What Extended is

Extended, formerly X10, is a hybrid perp DEX built on Starknet. The platform moved from its original StarkEx setup to full Starknet mainnet in August 2025. The team is led by Ruslan Fakhrutdinov, former Head of Crypto at Revolut, with colleagues from the same bank. The Revolut roots show in the product. The interface is built for people who have traded on clean consumer apps, not DeFi power users used to clunky front-ends.

Orders match off-chain with sub-second speed. Settlements are posted on Starknet using STARK proofs. Users keep self-custody of funds. The model is close to what EdgeX runs on StarkEx.

Security and audits

Extended has not published a named audit for its Starknet deployment as of May 2026. The original X10 StarkEx setup had an internal review. But no third-party report is linked from official channels. That is the key risk.

Starknet itself has been audited by known firms. But a settlement-layer audit does not cover the Extended app code on top of it. Traders should treat app-layer security as unverified until a report is out.

No exploit or fund loss has been reported since launch.

Volume and market position

Extended is a mid-tier perp DEX by volume. PerpFinder tracks it through DefiLlama. Daily volume sits well below the top platforms (Hyperliquid, EdgeX). But Extended's 50+ markets — including EUR/USD, S&P 500, gold, and oil — attract a different type of trader than pure crypto venues.

Starknet-based DEXes — Extended, Paradex, EdgeX on StarkEx — held about 16% of on-chain perp volume in early 2026, per BlockEden data.

Fees in detail

Takers pay 2.5 bps (0.025%). Makers pay 0 bps at the base tier and can earn a rebate based on 30-day maker-share levels. At the recorded base tiers, Hyperliquid makers pay 1.5 bps and dYdX makers pay 1 bps.

A $10,000 taker round-trip at 2.5 bps each way costs $5 total. The recorded base-tier cost is $10 on dYdX and $9 on Hyperliquid. Network costs are separate.

The referral code MIN gives referred users a 20% point bonus under the recorded operator terms. Check the current points status before you assign a cash value.

Use our fee calculator for live cost data at your position size.

Zero maker fees and forex perps: Extended's rare combo

Where does this page go beyond the Extended reviews at Coin360 and PerpScope? Four places:

1. Fee comparison at equal executed notional: Extended's 2.5 bps taker rate is below the dYdX 5 bps and Hyperliquid 4.5 bps base rates. Compare execution costs in our cost comparison tool 2. Maker fee comparison: Extended's zero-fee maker is the best in the mid-tier segment 3. TradFi market coverage: Extended and Gains Network are the only two platforms on PerpFinder that list forex and equity index perps 4. Live funding rates for Extended's top pairs on our funding rates tracker

Trading experience

The interface loads at app.extended.exchange. Onboarding is wallet-based with no account application step. The UI puts the essentials on a single trading view: one screen shows position, liquidation price, and funding rate — no toggling needed.

Markets span 50+ pairs: BTC, ETH, SOL, and altcoin perps, plus EUR/USD forex, gold, S&P 500, and oil. The TradFi coverage is the main draw over crypto-only venues. Leverage goes up to 100x on major crypto pairs. TradFi assets have lower limits.

Cross-margin uses one pool across all positions. There is no isolated margin mode.

Who Extended is for

Traders from TradFi or retail finance apps who want a clean perp interface: the Revolut alumni background shows in the UX quality.

Maker-strategy traders who want zero-fee or rebate fills: Extended's maker fee structure is strong, and Starknet gas is low enough that rebates are not eaten by costs.

Traders who need a verified audit before putting capital in: Extended does not yet meet that bar. dYdX and Hyperliquid publish audit records.

Anyone building toward the EXT airdrop: the 20% point bonus via code MIN is among the highest point bonuses on perp DEXes right now. The weekly point pool of up to 1.2 million points rewards trading volume, vault liquidity, and referrals in separate buckets. High-volume traders and LPs each earn on their own terms, not just referrers.

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