Bitcoin ETFs post their strongest inflow week since October

Bitcoin ETFs post their strongest inflow week since October
Bitcoin ETFs log best week since October as inflows hit $1.42B

​US spot Bitcoin ETFs pulled in $1.42 billion in net inflows over the past week, marking their best weekly performance since early October and signaling a fresh burst of institutional demand. 

The strongest buying hit midweek, with Wednesday alone bringing in about $844 million, following $754 million on Tuesday, according to SoSoValue data. 

Even with a late-week reversal — including a $395 million outflow on Friday — the midweek surge was large enough to push the weekly figure firmly into positive territory. The last time flows looked this strong was in early October, when spot Bitcoin ETFs drew roughly $2.7 billion in a single week. The setup suggests buyers are returning through regulated channels after months of more cautious positioning. For Bitcoin, the key takeaway is that ETF flow momentum is back — even if it’s still uneven day-to-day.

Ether ETFs follow a similar pattern, but volatility trims the gains

Spot Ether ETFs also saw a strong start to the week, led by $290 million in net inflows on Tuesday and another $215 million on Wednesday. Later sessions dragged on totals, with Friday showing around $180 million in outflows, reducing the weekly gain to approximately $479 million. The divergence between early-week accumulation and late-week selling highlights how tactical institutional positioning remains, especially as markets react to macro headlines and liquidity shifts. Still, the fact that ETH ETFs stayed net positive for the week reinforces the broader theme: investors are selectively adding exposure again. 

Unlike previous months where flows were persistently negative, this week looked more like rotation and rebalancing rather than outright risk-off liquidation. That matters because ETH flows tend to lag BTC flows — so a positive week can act like confirmation that demand is spreading. The market’s tone improved, but it hasn’t turned “one-way bullish” yet.

Supply tightens, but ETF bursts still need consistency to drive a trend

Kronos Research CIO Vincent Liu said the inflows suggest long-only allocators are re-entering, while onchain data indicates whales are reducing net selling compared with late December. Combined, that points to a tightening in “effective supply,” meaning fewer coins are actively available to sell into demand, even if headline circulating supply is unchanged. Liu described the shift as early-stage, not full confirmation, but argued the odds now favor more upside follow-through, “though not in a straight line.” 

However, Ecoinometrics offered a caution: past ETF spikes have often produced short-lived rebounds, with price gains fading once inflows slow. Their view is that Bitcoin needs multiple consecutive weeks of strong demand to change the broader trend, especially since cumulative ETF flows have been weak recently. In other words, one strong week helps stabilize the market, but a sustained rally likely requires repeated inflow weeks — not just a midweek burst.

Recently we wrote that Bitcoin climbed toward the $96,900–$97,000 zone as renewed spot demand helped lift the total crypto market capitalization to roughly $3.28 trillion

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