
ProShares’ GENIUS Money Market ETF, structured to meet U.S. stablecoin reserve rules under the GENIUS Act, drew $17 billion in debut trading, prompting speculation over potential stablecoin issuer participation.
ProShares launched the GENIUS Money Market ETF (IQMM), designed to comply with U.S. stablecoin reserve requirements under the GENIUS Act by holding short-term U.S. Treasuries. The fund recorded more than $17 billion in first-day trading volume, far exceeding typical ETF debuts and even surpassing BlackRock’s spot bitcoin ETF launch volume. The surge sparked speculation that a major stablecoin issuer such as Circle, which manages the $74 billion USDC token, may have allocated reserves to the fund. However, data shows Circle’s primary USDC reserve fund, managed by BlackRock, remained stable at nearly $64 billion, suggesting the volume likely stemmed from internal reallocations, including a reported $6 billion shift from ProShares’ leveraged ETF QTTT. Analysts, including 10x Research founder Markus Thielen, noted that IQMM is currently the only ETF purpose-built to meet GENIUS Act standards, positioning it as a potential reserve vehicle for issuers like Circle, Paxos, BitGo, and banks exploring tokenized deposits, amid a $300 billion stablecoin market.