Circle and Coinbase have strategically partnered to replace USDH with USDC on the Hyperliquid platform, an on-chain perpetual decentralized exchange (DEX). This move has resulted in USDC balances doubling over the past year, with 90% of reserve earnings being recycled back into Hyperliquid for HYPE buybacks. Coinbase will manage the treasury deployment, while Circle will handle the technical integration and operational infrastructure, staking 500,000 HYPE to secure a validator position. The partnership aims to enhance liquidity and market efficiency, with USDC becoming the quoted asset on Hyperliquid. This transition is expected to generate annualized returns of nearly $200 million from approximately $5 billion in USDC on the platform. The collaboration is seen as a strategic move to neutralize competition and expand USDC's adoption, positioning Coinbase and Circle at critical nodes in the evolving crypto infrastructure.