US Bitcoin ETFs Shed $463M Weekly as Ether ETFs Gain $197M

US Bitcoin ETFs posted $462.7 million in weekly outflows last week. The drop ended three straight weeks of inflows. Ether ETFs moved the opposite way. They gathered $196.9 million in net inflows.

Bitcoin ETFs Post $463 Million in Weekly Outflows

How Much Did Bitcoin ETFs Lose Last Week?

US spot Bitcoin ETFs saw $462.7 million in net outflows last week. That marked a sharp reversal. Three straight weeks of inflows had just ended. The selling ran across all four trading days. Data from Farside Investors confirmed the trend from Tuesday through Friday.

According to Bitcoin ETFs $463 million weekly outflows data, the funds fell fast. Thursday brought the worst single day. US spot Bitcoin ETFs lost $282.7 million that day alone. It was the largest daily withdrawal since July. Friday’s outflow slowed to $13.2 million. Still, it stretched the losing streak to four days, according to SoSoValue.

The pullback followed the strongest three week inflow run of 2026. That run ended when funds shed $166.8 million in two days. Those two days opened the holiday shortened week.

Spot Bitcoin ETFs hold real Bitcoin for investors. Fund managers buy or sell coins based on demand. When investors sell shares, funds must sell Bitcoin too. That selling shows up as a net outflow. Net outflows often signal cooling demand. They do not always mean panic selling though. Sometimes big holders just rebalance their portfolios.

Which Bitcoin Funds Led the Selling?

ARK 21Shares Bitcoin ETF led the outflows. It lost $234.2 million for the week. Grayscale’s Bitcoin Trust ETF came next. It shed $129.1 million. BlackRock’s iShares Bitcoin Trust ETF fell too. It recorded $52.5 million in net outflows. Fidelity’s Wise Origin Bitcoin Fund lost $50.7 million as well. Together, these four funds drove most of the weekly decline.

These four funds hold most Bitcoin ETF assets. ARKB, GBTC, IBIT and FBTC dominate the space. When they all lose money in one week, it stands out. That kind of broad selling is rare. It suggests the move was not just one fund rebalancing.

IBIT remains the largest Bitcoin ETF by assets. Even its $52.5 million outflow was small by comparison. GBTC has bled cash for months as investors move to cheaper funds. ARKB’s big weekly loss stands out as unusual. It rarely tops the outflow list.

Ether ETFs Reverse Course With $197 Million Weekly Inflows

Ether ETFs $197 million weekly inflows data confirms the reversal. US spot Ether ETFs pulled in $196.9 million over four days. The week had a rocky start. Tuesday saw $24.3 million in outflows. Wednesday flipped positive with $34.7 million in inflows. Thursday turned negative again with $29.9 million in outflows.

Friday changed everything. The funds drew $216.4 million in net inflows that day. BlackRock iShares Ethereum Trust ETF inflows drove most of the rebound. BlackRock’s fund, known as ETHA, led with $148.8 million. 21Shares Core Ethereum ETF added another $29.1 million. Together, they pushed the week into positive territory.

Ether ETFs work the same way as Bitcoin funds. They hold actual Ether for shareholders. Flows into these funds show fresh institutional demand. The swing from losses to gains happened fast. Just one day, Friday, flipped the entire week.

The four day swing was unusually sharp for these funds. Few weeks show such a dramatic turnaround.

Why Are Bitcoin and Ether ETFs Moving in Opposite Directions?

The split shows shifting investor mood. Bitcoin ETFs still lead in total size. But traders appear to be rotating some cash into Ether. September has been kind to both assets so far. Spot Bitcoin ETFs still hold $307.3 million in net inflows for the month. That is despite last week’s outflows. The rotation could also reflect price action. One related report noted a separate trend. Bitcoin failed to reclaim $80,000 that day. The yen also strengthened near 153 per dollar. That kind of macro pressure often pushes traders toward cheaper bets like Ether. This looks like rotation, not retreat.

Ether has often traded as Bitcoin’s shadow. When Bitcoin cools, some traders test Ether instead. That does not mean Bitcoin is out of favor. Its ETFs still gathered more cash this month overall. The bigger question is whether this reversal continues into next week. One bad week does not break a trend.

Bitcoin still dominates the ETF market by far. That fact alone limits how far this rotation can go. Markets rarely move in a straight line for long.

September Flows Still Positive Despite the Pullback

The weekly reversal has not erased 2026’s momentum. Bitcoin ETFs remain positive for September. They hold about $307.3 million in net inflows through Friday. Ether ETFs also closed the week in the green. Investors will watch next week closely. A fifth straight day of Bitcoin outflows would raise fresh concern. A second week of Ether inflows would confirm the shift. This would not be a one day blip.

Fund flows offer a window into big money moves. Retail traders often follow where institutions lead. If Bitcoin outflows continue, sentiment could sour further. If Ether keeps pulling in cash, altcoin interest may grow. Either way, next week’s data will matter.

Here is the full picture in one place. US spot Bitcoin ETFs lost $462.7 million last week. That ended three straight weeks of gains. The selling hit hardest on Thursday. Bitcoin ETFs dropped $282.7 million that single day. It was the worst day since July. Friday added another $13.2 million in outflows. ARK 21Shares Bitcoin ETF lost the most, at $234.2 million. Grayscale’s Bitcoin Trust ETF followed with $129.1 million in losses. BlackRock’s IBIT shed $52.5 million. Fidelity’s FBTC dropped $50.7 million. Even with the losses, Bitcoin ETFs stayed positive for September. They held $307.3 million in net inflows for the month through Friday. Meanwhile, Ether ETFs gained $196.9 million for the week. BlackRock’s ETHA alone brought in $148.8 million on Friday. Analysts called the split a rotation, not a retreat. Next week’s data will show if the trend holds.

How Are Bitcoin ETF Flows Tracked?

Farside Investors tracks daily ETF flow data. SoSoValue also publishes flow numbers each day. Both firms pull data straight from fund issuers. Their numbers cover creations and redemptions of shares. A creation adds new shares and new Bitcoin. A redemption removes shares and Bitcoin from the fund. Net inflows mean more creations than redemptions. Net outflows mean the opposite happened that day.

Investors should watch both trackers going forward. Small differences between the two are normal. Timing of data updates can vary slightly.

This article is for informational purposes only and does not constitute investment advice. Every investment and trading decision involves risk. Readers should conduct their own research before making any financial decisions.