Bitcoin spot ETFs saw a net outflow of -$142.7M on July 31, reversing Thursday's +$233.1M inflow led by BlackRock's IBIT. Ethereum ETFs also posted a modest -$6.4M outflow the same day.
Matters because: The flow reversal suggests institutional conviction is still fragile after the Fed's hawkish hold, and more outflows could keep pressure on BTC near the $63-65K range.
