In September 2025, Hyperliquid passed a governance vote to launch its native stablecoin USDH, aiming to replace USDC as the core quote asset. On launch day, volume hit $2 million, with lower taker fees and higher maker rebates for USDH pairs. It looked like DeFi had learned to print its own money.
Seven months later, the plot flipped. USDH never captured more than 5% of Hyperliquid's stablecoin market share. Traders' funding paths, cross-chain bridges, and CEX channels were all built on USDC. Market makers refused to split liquidity across two quote systems. USDH became a dead pool.
Circle Strikes Back: From Rival to Utility Provider
On May 14, 2026, Hyperliquid officially retired USDH and reinstated USDC as the sole official quote asset across all markets. Circle did not acquire Hyperliquid or buy HYPE tokens separately; it took three actions: becoming the technical deployer of USDC on Hyperliquid (handling mint, redeem, cross-chain infrastructure), staking 500,000 HYPE to prepare as a Hyperliquid validator, and connecting Hyperliquid with other chains via CCTP (Cross-Chain Transfer Protocol). Circle wants to be the plumbing, not the landlord.
Coinbase Enters: Treasury Control and Brand Acquisition
Meanwhile, Coinbase secured the USDC Treasury Deployer seat and acquired the USDH brand assets. One manages tech, the other manages treasury. Hyperliquid's stablecoin layer shifted from self-built to jointly operated by Circle and Coinbase. HYPE token price rose to around $45 after the announcement, as the market saw Circle's integration as a stabilizing move.
Death of USDH: A Deliberate Sacrifice
Hyperliquid co-founder Mary-Catherine Lader said: "This transition validates our thesis that stablecoins must return value directly to users and the ecosystem, not extract from it." Under the new AQAv2 framework, Coinbase as Treasury Deployer will funnel most of the reserve yield generated by USDC balances on Hyperliquid back to the protocol. That's exactly what USDH promised to do—now executed by USDC's issuer and its distributor.
USDH is dead, but its mission succeeded: it forced Circle to engage and made reserve yield flow back to the ecosystem. The moat in stablecoins is distribution—whoever has the deepest channels wins. In the end, the "decentralization" of Hyperliquid boils down to the dollar.