- Sonic Labs ends a five-year market-making partnership with Wintermute.
- S token price drops following Wintermute’s sale of holdings.
- Seeking new partners for deeper integration in DeFi ecosystem.

Sonic Labs, previously Fantom, announced it terminated its market-making partnership with Wintermute, effective May 15, 2025.
The decision by Sonic Labs to conclude its collaboration with Wintermute signals a shift towards engaging market makers more involved in its growing DeFi ecosystem.
Market-Making Evolution
Sonic Labs, known for its blockchain platform and a thriving DeFi ecosystem, officially ended its partnership with Wintermute on May 15, 2025. The exclusive relationship spanned five years, and the decision was announced by Sonic Assistant via Twitter.
Wintermute responded by selling approximately $857,000 in S tokens, related to a $16 million loan inventory. The S token’s value fell by 6%, reflecting the culmination of partnership and market activity. Sonic continues its focus on expanding its ecosystem, welcoming new market makers. Wintermute’s decision to divest part of its holdings affected the S token, reflecting a shift in investment strategies. The broader implications involve potential shifts in market sentiment and approach toward Sonic’s DeFi strategy. The S token’s market movement post-announcement indicates a volatile reaction but aligns with strategic growth. Historical patterns of Sonic’s ecosystem expansion, including a significant airdrop and FeeM program adoption, underline their approach. This termination highlights the evolving nature of DeFi alliances and emerging opportunities in new partnerships.
“24 hours ago, we informed @wintermute_t that we will not be renewing our MM contract. We have been using WM exclusively for 5 years of service. We have engaged with other MM firms who are willing to provide MM++, they get involved in our DeFi ecosystem, engage with applications…” – Sonic Assistant, Strategic Director, Sonic Labs
Future Prospects
Sonic’s new market-making strategy aims to integrate players more deeply into its decentralized finance space, possibly affecting future regulations and technology advancements. Some financial analysts predict continued growth in TVL and trading volumes within Sonic’s DeFi ecosystem despite the immediate turbulence caused by the separation. The platform’s innovative fee models and incentive structures may attract new partners aligning with its vision. The approach may influence other blockchain platforms’ strategies, signaling a trend toward deeper network involvement by market service providers.