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About Main Street USD
Analysis of 1 May 2026Main Street USD (msUSD) is a synthetic, yield-bearing stablecoin built on the Sonic blockchain by Main St Finance Ltd (BVI). It maintains a 1:1 USDC peg while generating approximately 9.5-12% APY through institutional-grade CME index options box spread strategies.
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The protocol raised $400,000 from the Sonic Innovator Fund in August 2025 and has grown to roughly $47 million in circulating supply as of May 2026. Two WatchPug security audits (July and December 2025) found zero critical or high-severity issues.
The dual-token system pairs msUSD with msY (ERC-4626 vault shares) for yield distribution, using Fireblocks custody and FalconX as prime broker for CME execution.
