PANews reported on May 15 that Sonic Assistant, strategic director of Sonic Labs, said that the team had officially notified Wintermute 24 hours ago that it would not renew the cooperation agreement, ending the five-year exclusive market-making cooperation between the two parties. Sonic will cooperate with new market makers who are more actively involved in the DeFi ecosystem, community building and team communication. Wintermute subsequently sold about $857,000 in S tokens, suspected to be a return of the previous $16 million loan inventory.