Grayscale’s GSUI staking ETF launches as SUI slides 31% in 2026 and faces token unlock

Grayscale launched its SUI staking ETF (GSUI) on 18 February, bringing the SUI network directly onto Wall Street’s radar as the token struggles with a 31% decline in 2026 and a 57% drop last year. While SUI’s TVL has fallen to about $580 million and open interest is down nearly 30%, the ETF’s staking rewards could attract more institutional capital and validators. However, an upcoming unlock of 43.35 million SUI on 01 March may add volatility and test whether GSUI can genuinely support a DeFi recovery.