Sonic Labs Launches USSD Stablecoin Backed by Tokenized Treasuries

Key Insights:

• Sonic Labs USSD stablecoin launches as Sonic seeks fresh DeFi liquidity.
• The token uses Frax frxUSD infrastructure and cross-chain minting.
• Reserves include BlackRock, Superstate, and WisdomTree products.

Sonic Labs USSD stablecoin is live as the Layer 1 network tries to stabilize a steep decline in activity. Sonic says USSD will act as the native source of stable liquidity across its DeFi ecosystem, with backing tied to short-duration U.S. dollar assets and tokenized Treasury products.

The launch also arrives as Sonic’s total value locked has dropped to about $34.4 million. The S token was trading near $0.04 with a market cap of around $152 million. That backdrop makes the release more than a routine product update. It is a direct attempt to keep liquidity, yield, and user activity inside the network.

Why Sonic Labs USSD Stablecoin Matters for Sonic DeFi?

Sonic Labs’ USSD stablecoin is built on Frax’s GENIUS-compatible frxUSD stack. It provides the network with a modular stablecoin system rather than relying solely on external issuers.

According to Sonic’s documentation, the token can become the main stable asset across trading pairs, lending markets, and integrated apps on the chain. That matters because native stable liquidity can reduce fragmentation and give developers a cleaner unit of account for on-chain activity.

Sonic Labs USSD Stablecoin News | Source. X

Sonic also frames the stablecoin as part of a broader vertical integration push. Rather than letting Treasury-related yield leak to external issuers, the network wants some of that economic value to circulate back through its own ecosystem.

In practice, that could support incentives, buybacks, and deeper liquidity if adoption improves. The strategy is notable because Sonic’s earlier growth faded fast after its 2025 surge in locked value and token price.

How Sonic Labs USSD Stablecoin is Backed and Minted?

The reserve model is one of the main selling points. Sonic Labs says USSD is fully backed 1:1 by short-duration USD assets held with regulated custodians. The reserves consist of tokenized U.S. Treasury products.

These include BlackRock USD Institutional Digital Liquidity Fund (BUIDL), Superstate Short Duration U.S. Government Securities Fund (USTB), and WisdomTree Government Money Market Digital Fund (WTGXX). Sonic also says reserve visibility is available on-chain through Frax’s infrastructure.

Minting is handled via non-custodial smart contracts at a 1:1 ratio, with no minting fees. Supported mint assets include USDC, USDT, PYUSD, and tokenized Treasury representations. Cross-chain minting is available from more than 10 networks.

Sonic’s documentation says users can deposit supported assets on another chain and receive USSD directly on Sonic. Redemption routes are available across CCTP-supported chains where applicable.

The mechanics are meant to lower friction for users moving capital into Sonic. A trader holding USDC on another supported chain does not need to bridge manually, swap into a local asset, and then hunt for liquidity.

Instead, the user can mint into USSD and arrive on Sonic with a dollar asset already aligned with the network’s internal design. That simplicity could matter more now, as DeFi users have become far less willing to chase complex incentive loops.

Sonic Labs USSD Stablecoin Faces a Tougher Market Reality

The product launch gives Sonic a new narrative, but the network still faces a hard reset in scale. DefiLlama currently shows Sonic with about $34.4 million in TVL and roughly $125.2 million in stablecoin market cap on-chain.

CoinGecko shows S remains about 96% below its all-time high of $1.03, even after a modest daily bounce.

Sonic TVL | Source: X

That is why Sonic Labs USSD stablecoin matters beyond branding. A chain-native dollar can improve settlement, collateral management, and liquidity routing across DeFi apps. It also gives Sonic a way to connect real-world asset yield with on-chain usage in a form users already understand.

USSD could become a more durable liquidity layer than short-term incentive programs if developers adopt it across trading, lending, and payments. The stablecoin is already deployed on Sonic blockchain, Ethereum, Base, and Arbitrum, along with seven other chains.

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