Catalyst and Timeline
Published 6/22/2026, 9:46:12 AM
The msY (Main Street Yield) stablecoin depegged to approximately $0.24 on June 21, 2024, following the termination of its proof-of-reserves verification partnership with Accountable. The collapse was driven by a sudden loss of market confidence in the protocol's "box spread" options strategy and a subsequent liquidity crisis on lending platforms like Morpho.
Catalyst and Timeline
The depeg followed a rapid breakdown in transparency and verification:
- June 20, 2024: Early signs of distress appeared as curators reportedly began withdrawing liquidity from msY-related markets. [Note: AlphaPing's specific withdrawal on June 20 not independently confirmed].
- June 21, 2024 (Morning): Accountable, the protocol's proof-of-reserves verifier, terminated its agreement with Main Street Finance [Source: https://x.com/mirza_sarmin/status/2068624291495919686]. This caused the reserves dashboard to go dark, sparking immediate panic.
- June 21, 2024 (Afternoon): The price of msY crashed by over 65% within hours as users rushed to exit [Source: https://x.com/stablewatchHQ/status/2068806604024365180].
- June 22, 2024: The asset bottomed out near $0.24–$0.25, representing a ~75% loss in value over a 7-day period.
Market Impact and Mechanics
The failure of msY created significant contagion within the DeFi ecosystem, particularly on the Morpho Blue lending protocol.
| Metric | Value (as of June 22, 2024) | Source |
|---|---|---|
| Depeg Price | ~$0.24 | [Source: https://x.com/stablewatchHQ/status/2068806604024365180] |
| Market Cap Loss | ~$74M (from ~$90M to ~$16M) | [Source: https://x.com/mirza_sarmin/status/2068624291495919686] |
| Morpho Borrow Rate | 138% (at 100% utilization) | [Source: https://x.com/PhilOnChain/status/2068631221249130660] |
| 7-Day Return | -75.4% | [Note: Based on market data at time of event] |
Contagion Mechanics: As msY lost its peg, the msY/USDC market on Morpho hit 100% utilization. Borrowers faced interest rates of 138% but chose to default on their loans rather than repay them with USDC, as the msY collateral they had posted was now worth significantly less than the debt [Source: https://x.com/PhilOnChain/status/2068631221249130660].
Transparency and Governance Issues
The depeg was preceded by warnings regarding the protocol's data integrity. PennyWorks, another financial firm, revealed they had previously declined to onboard Main Street Finance because the protocol could not meet basic data and transparency requirements [Source: https://x.com/pennyworks_/status/2068687885297959027].
The underlying yield strategy—utilizing options box spreads to generate ~12% APY—was intended to provide T-bill-like returns but ultimately suffered from a lack of verifiable on-chain collateral and the withdrawal of third-party oversight [Source: https://x.com/mirza_sarmin/status/2068624291495919686].
Conclusion: The msY depeg was caused by the termination of its proof-of-reserves verification, which exposed a lack of transparency in its underlying yield strategy and triggered a liquidity cascade on lending markets. The asset remains highly distressed, trading at a fraction of its intended $1.00 peg.