Bitcoin spot ETFs lost $64M in outflows on June 15 while Ethereum, Solana, and XRP ETFs attracted $28M, signaling an institutional rotation into altcoins.

Ether, XRP, Solana and Hyperliquid funds all took in money, but bitcoin's outflow was really just Grayscale's GBTC.

Bitcoin spot ETFs lost $64.8M on June 15 as GBTC shed $124M, while Ethereum, Solana, and XRP ETFs attracted combined inflows in an institutional rotation.