According to Farside Investors, the Solana ETF SSK (REX-Osprey) recorded a US$27 million daily flow on Oct 21, 2025 (source: Farside Investors on X and Farside Solana ETF flows dashboard https://farside.co.uk/sol/). Traders can monitor subsequent daily flow updates for SSK to gauge near-term ETF demand and market sentiment via the same dashboard (source: Farside Solana ETF flows dashboard https://farside.co.uk/sol/). Data, notes, and disclaimers are available directly from Farside Investors (source: https://farside.co.uk/sol/).