Bitcoin and Ether Spot ETFs Attract Nearly $2B in Biggest Weekly Inflows Since October

Bitcoin and Ether spot ETFs recorded the largest weekly inflows since October, drawing nearly $2 billion as investors rotated into regulated crypto exposure. Bitcoin-led inflows were strongest, driven by major U.S.-listed issuers and improving macro risk sentiment, while Ether ETFs also attracted substantial capital as institutional interest in ETH exposure grew. The surge in ETF flows coincided with rising trading volumes and price upticks for both BTC and ETH, suggesting the inflows were at least partly price-accretive. Drivers cited by market participants include clearer regulatory outlook for spot ETFs and renewed risk appetite. Total assets under management for BTC ETFs have expanded materially, reinforcing short-term bullish momentum for Bitcoin; ETH saw meaningful inflows in the later report after an earlier note of modest outflows. For traders: monitor ETF flow updates, AUM shifts among top issuers, volume and basis between spot markets and futures, and any regulatory developments that could sustain or reverse the current rotation into spot ETF products.
Bullish
The combined reports point to significant net inflows into spot Bitcoin and Ether ETFs, concentrated in major U.S.-listed products. Historically, large ETF inflows — especially into spot products — increase price support by bringing new, regulated capital into the market and tightening the supply available on exchanges. The concurrent rise in trading volumes and price upticks indicates these flows were at least partly price-accretive. Short-term impact: bullish for BTC and ETH as inflows and rising AUM typically sustain momentum and can amplify positive price moves, particularly if flows persist. Traders should watch daily ETF flows, issuer concentration (e.g., BlackRock, Fidelity, Grayscale), ETF premium/discount and futures basis, and spot liquidity; any reversal in flows or negative regulatory news could quickly undermine the rally. Long-term impact: continued institutional adoption via regulated ETFs supports broader demand fundamentals for BTC and ETH, but lasting price appreciation depends on sustained inflows, on-chain activity, macro conditions and regulatory clarity. Overall, the immediate price signal is positive, with risk that flows could reallocate or pause, causing volatility.