Spark Savings USDT vault nearly doubles to $600 million in two weeks
- —Spark Savings USDT TVL climbed to $600 million in two weeks
- —OKX app integration in September 2026 removed bridging and separate wallet needs
- —Yield fell from peaks above 4% to 3–3.75% APY
- —The vault is backed 1:1 by USDS and runs on Ethereum, Arbitrum and X Layer
Why it matters: The growth shows demand for on-chain USDT yield via exchange apps, but falling rates signal yield compression in lending pools.
Source: Crypto Briefing