HyENA Review — Live Volume, OI & Fees

HyENA Review 2026

A Hyperliquid book with Ethena economics

HyENA is a builder-deployed perp market on Hyperliquid, live since December 9, 2025. It was built by the team behind Based and is backed by the Ethena Foundation. The pitch is simple: trade on Hyperliquid's order book, but post margin in USDe, Ethena's synthetic dollar.

Contracts are quoted against USDT prices while margin sits in USDe. That one design choice drives everything else worth knowing about this venue.

What is not audited here

HyENA has published no audits of its own. Matching and settlement run on Hyperliquid's engine, which carries the base layer's security record. But the deployment parameters, market configs and points plumbing are HyENA's own work to get right. That split is why the security score lands mid-table: proven rails, unreviewed venue layer.

Fees on the 1.11x schedule

Pricing runs at 1.11 times Hyperliquid's validator-market base rates. That works out to 0.0167% maker and 0.05% taker. Two levers soften it. Makers holding a large share of the book earn rebates that reach 0.003% at the deepest tier. And staking HYPE trims the schedule further, the same way it does on the main book. Put your own numbers through the fee calculator before assuming the multiplier prices you out.

Yield-bearing margin changes the carry math

On almost every perp venue, idle margin earns nothing. On HyENA, the USDe you post keeps earning Ethena's native yield while it backs your positions. For funding-rate farmers and basis traders, that is a real edge: the same dollar works two jobs at once.

The main risk is concentration. Funding an account means holding USDe, so an Ethena stress event would hit your collateral value and trading venue at the same time. Trading on HyENA also exposes you to the synthetic-dollar design.

Markets and leverage

The core set is BTC, ETH, SOL and HYPE contracts, with further listings arriving. Leverage runs from 3x to 40x depending on the asset. Daily volume sits near $3.4 million against about $6.8 million of open interest, and cumulative volume has passed $4 billion. Depth is fine for retail clips and thin for size.

Points that reportedly become ENA

HyENA emits 100 million points per week across 24 weekly epochs. There is no separate HyENA token planned; reporting points to balances converting to ENA when the program closes. Treat that as reported, not promised. A referral program exists, but the percentage splits are unpublished, so we do not quote them.

Verdict for July 2026

HyENA makes sense for Ethena-aligned traders who already hold USDe and want margin that earns while they trade. It also fits points farmers betting on the ENA conversion. Traders who just want the cheapest BTC perp should use the validator-run book directly instead: same matching engine, lower multiplier. Compare both side by side on the live rankings.

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