There is currently 800m USDC deposited on @HyperliquidX and most is earning nothing.
haUSDC will change that, here's everything you need to know.
haUSDC is Harmonix's yield-bearing receipt token for USDC depositors. It follows the ERC-4626 vault standard — the gold standard for yield-bearing tokens in DeFi.
The mechanic is simple:
Deposit USDC → receive haUSDC shares → watch your share grow in value over time.
Yield compounds directly into the exchange rate. No claiming. No staking. No manual rebalancing. Your share simply becomes worth more USDC as yield accrues in.
Minimum deposit: 1 USDC.
Capital is split across three strategies that shift dynamically based on market conditions:
1. Delta Neutral — the engineCapital is paired long spot / short perpetuals on HyperCore to earn funding rate payments while maintaining zero directional exposure. No price bets. This is the primary, most consistent yield source.
2. Spot Supply — the multiplierA portion is deployed into lending and liquidity protocols on HyperEVM — Felix, Hyperswap, and HyperLend — generating additional variable yield on top of funding income.
3. Idle Buffer — the safety valveA small reserve is kept undeployed at all times to support smooth redemptions without unwinding active positions.
When funding rates shift, capital rotates automatically. No action needed from you.
Harmonix is implementing the ERC-7540 standard — an official async extension of ERC-4626 — to enable a integrations like @superformxyz
What this means: once live, users will be able to deposit into haUSDC from any chain, using any asset, via platforms like Superform's app and mobile. No manual bridging. No extra steps.
The upgrade supports Harmonix's asynchronous withdrawal architecture (where users initiate a withdrawal request before claiming) while keeping instant deposits — the standard design for vault strategies that take time to unwind positions.
Superform has confirmed the integration is compatible out of the box.
Every haUSDC position automatically accrues Points from partner protocol with no additional steps. These compound total returns on top of what the base APY shows, rewarding early contributors to the ecosystem.
Harmonix is built directly on Hyperliquid's stack:
HyperBFT — consensus layer keeping HyperCore and HyperEVM fast and in sync
HyperCore — where the basis trade executes (funding rates, perps, spot)
HyperEVM — where the lending and liquidity strategies run (Felix, Hyperswap, Kinetiq)
No bridges. No external oracles. Everything runs on the same stack — from consensus to application.
Underlying asset: USDC
Standard: ERC-4626
Minimum deposit: 1 USDC (at launch)
Strategy: Delta-neutral basis trade + HyperEVM lending
Points: Harmonix Points + partner protocol points (automatic)
Status: Coming Soon
haUSDC is not a fixed-yield instrument. Yield fluctuates with funding rates, market conditions, and protocol activity. The share price grows over time as yield accrues — each haUSDC will be worth more USDC at redemption than at deposit. haUSDC is not pegged to $1; it is a yield-bearing vault share denominated in USDC.
haUSDC is launching soon on Harmonix Finance. Follow along and be early.
Docs:
Harmonix Docs - DeFi Yield Protocol on Hyperliquid
Harmonix Finance documentation - yield-bearing stablecoins, haHYPE/hakHYPE tokens, basis trade vaults, and smart contract integration guides on Hyperliquid.
WEB:
Harmonix Finance
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