Bitcoin ETFs post $463M weekly outflow as Ether funds gain

US spot Bitcoin exchange-traded funds ended last week in the red, with net outflows of $462.7 million after three straight weeks of gains. Ether ETFs moved in the opposite direction, pulling in nearly $197 million over the same period. The split marks a clear shift in short-term fund flows after a strong run for Bitcoin products earlier in the month.

Bitcoin funds lose momentum

The retreat in Bitcoin ETF demand was spread across all four trading sessions from Tuesday through Friday. It came after the funds had already given up $166.8 million in the first two days of a holiday-shortened week, before losses widened further on Thursday. That day brought $282.7 million in net redemptions, the largest daily withdrawal since July.

Friday’s outflow eased to $13.2 million, but it still extended the negative streak to four trading days. ARK 21Shares Bitcoin ETF, or ARKB, led weekly withdrawals with $234.2 million. Grayscale’s Bitcoin Trust ETF followed with $129.1 million, while BlackRock’s iShares Bitcoin Trust, known as IBIT, was also among the biggest drags on the group.

Ether ETFs attract fresh money

Ether funds benefited from the same rotation, finishing the week with net inflows of almost $197 million. BlackRock’s ETHA was the main driver behind that advance and helped push the category into positive territory for the week. The move suggests investors were willing to add exposure to Ether even as Bitcoin products saw heavier selling.

The turnaround matters because these funds are closely watched as a real-time gauge of institutional demand. When Bitcoin ETFs take in money, they can add support to spot-market flows; when they lose assets, that support fades. The latest numbers show that appetite can shift quickly between the two largest cryptocurrencies, even over a single week.

The reversal also ended Bitcoin ETFs’ strongest three-week inflow stretch of 2026. That earlier run had helped offset a softer period in trading, but last week’s withdrawals erased that momentum. Ether’s gain, meanwhile, kept the altcoin-focused products on a different track from their larger rival.

For traders and portfolio managers, the pattern highlights a market that is still highly reactive to sentiment and positioning. Large daily swings in ETF flows can change the tone for both assets without altering the broader investment case. Still, the latest data point to a more cautious stance toward Bitcoin funds and a firmer bid for Ether exposure.

This article is not investment advice and recommends no asset, level or direction; a single session's move is not evidence of a trend. For background see Crypto, Altcoin, Bitcoin, and for terms the finance glossary.