Spark Savings has launched vault access for three major stablecoins — USDC, USDS, and USDT — on the Arbitrum network. The new vaults cover more than 90% of the roughly $4 billion in stablecoin supply currently held on Arbitrum, according to the company.
What the vaults offer
The vaults let users deposit USDC, USDS, or USDT into yield-bearing savings pools on Arbitrum. Spark Savings didn't disclose specific interest rates, but said the vaults are designed to provide a simple way to earn returns on stablecoin holdings. The move brings the same type of product that Spark already offers on Ethereum to Arbitrum's growing ecosystem.
Why Arbitrum matters for stablecoins
Arbitrum is one of the largest layer-2 networks by total value locked, and its stablecoin supply has swelled to $4 billion. By offering vaults that cover the three most-used stablecoins on the network, Spark is tapping into a deep liquidity pool. The company said the vaults are now live and available to all users.
The launch comes as competition among DeFi platforms heats up to attract stablecoin deposits. Spark's move gives Arbitrum users a new option to put their idle stablecoins to work without leaving the network.
No further details on future expansions or additional vaults were provided.
