Hyperliquid's open scheme: tried to break free from Circle, seven months later became a USDC validator node

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Hyperliquid launched its native stablecoin USDH last September, aiming to break free from its dependence on USDC and keep yield within its own ecosystem. Seven months later, USDH was pronounced dead. Circle not only reclaimed its position as the quote asset but also staked 500,000 HYPE tokens in preparation to become a Hyperliquid validator node. Coinbase simultaneously took over the USDH brand assets and the USDC Treasury Deployer seat. USDC's supply on Hyperliquid has now reached approximately $5 billion. (Background: Circle's stock surges 15% after earnings release of Agent Stack! USDC nano-payments goes live, $MRDN rallies 160% alongside) (Background context: Coinbase dominates Hyperliquid liquidity! Acquires USDH brand assets, USDC becomes the sole official quote stablecoin) In September 2025, Hyperliquid's validator nodes completed a governance vote that overwhelmingly approved the issuance of native stablecoin USDH by Native Markets, replacing USDC as the platform's core quote asset. USDH's pitch was straightforward: why send the yield from stablecoin reserves to Circle, letting them use it for IPO listings and revenue? Wouldn't it make more sense to keep the yield within the ecosystem and distribute it to HYPE holders? First-day trading volume broke $2 million. Hyperliquid offered lower taker fees and higher maker rebates for USDH quote pairs. Everything looked like a DeFi protocol had finally learned to print its own money. Seven months later, USDH's main fortress was breached. USDH's problem wasn't technical execution — it chose a fight it couldn't win. Before USDH launched, USDC already held about 95% of the stablecoin liquidity on Hyperliquid. Traders weren't going to swap their margin from USDC to USDH just because taker fees were 0.01% lower, because their fund inflow/outflow paths, cross-chain bridges, and CEX deposit/withdrawal channels were all built on USDC. In other words, USDH was trying to convince athletes already exercising hard in a fully built stadium to breathe air they weren't used to. The result was that USDH never broke through that 5% share. The $2 million first-day volume was a curiosity-driven window (or pools added by the project team itself), and afterward, the depth of stablecoin pairs could never catch up to USDC pairs. Market makers were unwilling to spread liquidity across two quote systems, and traders won't even touch a stablecoin without sufficient liquidity depth. On May 14, Hyperliquid officially announced the phase-out of USDH, with USDC once again becoming the sole official quote asset across all markets (HIP-1 through HIP-4). But the key point of the story isn't how USDH died — it's how Circle made its entrance. Circle didn't acquire Hyperliquid, nor did it buy HYPE tokens to profit on the side. It did three things: - Became the technical deployer of USDC on Hyperliquid, responsible for the infrastructure of minting, redemption, and cross-chain transfers - Staked 500,000 HYPE tokens in preparation to become a Hyperliquid validator node - Connected USDC liquidity between Hyperliquid and other chains via CCTP (Cross-Chain Transfer Protocol) Put simply, Circle doesn't want to be Hyperliquid's landlord — it wants to be the utility provider, earning a bit more from every drop of liquidity. Meanwhile, Coinbase secured the USDC Treasury Deployer seat and acquired USDH's brand assets. One handles the technology, the other handles the treasury. Hyperliquid's stablecoin layer transformed from "self-built" to "jointly operated by Circle + Coinbase." After the announcement, the HYPE token rose to around $45, with the market judging that having Circle as the utility infrastructure makes Hyperliquid more stable. There's an easily overlooked angle here. The USDH that Hyperliquid built appears to have vanished into history, but USDH's core innovation — returning stablecoin reserve yield back to the protocol ecosystem instead of letting the issuer pocket it all — actually lives on within HL for the long run. Under the new AQAv2 (Aligned Quote Asset v2) framework, Coinbase, as Treasury Deployer, will return the vast majority of reserve yield generated by USDC balances on Hyperliquid back to the protocol itself. This is exactly what USDH originally promised to do — now executed personally by USDC's issuer and distributor. The money flows, the protocol eats the meat, and the risk is externalized. Hyperliquid co-founder Mary-Catherine Lader said something meaningful: "This transition validates our thesis — stablecoins must return value directly to users and the ecosystem, not extract from them." What she means is: building USDH proved this model was viable. Then Circle and Coinbase saw it and thought, "Let us do it — we can do it better." USDH is gone, but its purpose was accomplished. Hyperliquid's pre-emptive stablecoin strategy forced Circle to enter the game — a brilliant "offering one's head" gambit. USDH proved three things: First, DeFi protocols can issue their own stablecoins — technically completely viable. Second, users don't care who issues the stablecoin. They care about how deep the liquidity is, how smooth the withdrawals are, and whether cross-chain bridges work. Third, a stablecoin's moat is distribution channels. Whoever connects the most channels and absorbs the most trading volume or holdings wins. We can see this is a very traditional B2B2C playbook. Because Circle is now a Hyperliquid validator node, the issuer of USDC, the operator of cross-chain infrastructure, and a US-listed public company — so when it comes to Hyperliquid's "decentralization," who exactly is at the center? The US dollar. Why did Hyperliquid phase out its own stablecoin USDH? After seven months on the market, USDH was never able to break through the 95% liquidity share dominated by USDC. Traders' fund inflow/outflow paths, cross-chain bridges, and CEX deposit/withdrawal channels were all built on USDC. USDH lacked sufficient depth to attract market makers and users to migrate. What role does Circle play on Hyperliquid? Circle is the technical deployer of USDC on Hyperliquid, responsible for the infrastructure of minting, redemption, and cross-chain transfers, and has staked 500,000 HYPE tokens in preparation to become a validator node. Coinbase serves as the USDC Treasury Deployer, returning the majority of reserve yield back to the Hyperliquid ecosystem under the AQAv2 framework.

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