US spot Bitcoin ETFs lost about $167 million on Wednesday, their biggest single-day outflow in more than a week, while ether and Solana funds swung back to net inflows in the same session. The rotation suggests investors are trimming Bitcoin exposure after a strong three-week run without abandoning crypto products altogether.
ARKB led the withdrawals
The ARK 21Shares Bitcoin ETF (ARKB) led Wednesday’s withdrawals with $78 million, according to Farside Investors data cited by Cointelegraph. Grayscale’s Bitcoin Trust ETF (GBTC) followed with $27.2 million and BlackRock’s iShares Bitcoin Trust ETF (IBIT) saw $19.5 million leave the fund.
Morgan Stanley’s Bitcoin Trust (MSBT) was the only Bitcoin fund to take in money, adding $4.5 million. The fund launched in April and has been one of the steadier performers in the group, helped by the bank’s distribution network of roughly 16,000 financial advisors managing trillions in client assets.
The bigger picture
Wednesday’s outflow lands after what analysts described as the strongest three-week inflow stretch of 2026 for the Bitcoin funds. Cumulative net inflows since the products launched in January 2024 stand at about $55 billion, but 2026 has been a different story: net flows for the year so far amount to roughly $1.07 billion in outflows, per Farside’s all-data series.
Bitcoin traded near $77,700 on Thursday, down about 1.4% over 24 hours, still stuck below the $80,000 level it failed to reclaim on Tuesday. Ether changed hands near $2,460 and Solana near $101, both modestly higher on the day.
| Fund | Wednesday flow |
|---|---|
| ARK 21Shares (ARKB) | -$78.0M |
| Grayscale (GBTC) | -$27.2M |
| BlackRock (IBIT) | -$19.5M |
| Morgan Stanley (MSBT) | +$4.5M |
Macro still runs the show
Flows have tracked the macro calendar all month. Brent crude held above $100 a barrel as US-Iran fighting escalated, stocks slid for a third day on Wednesday, and prediction markets put a better-than-even chance, around 58%, on the Federal Reserve raising rates at its September 16 meeting. Assets that pay no yield tend to trade with that sensitivity, and crypto has been no exception.
Treasury Secretary Scott Bessent added a policy wrinkle on Wednesday, urging lawmakers to pass the CLARITY Act when the Senate returns from recess next week and warning that failure would send a “troubling signal” about America’s leadership in digital assets. The Senate has a cloture vote scheduled for September 15, the day before the Fed decides rates, so both events land inside the same trading week.
The August CPI report due September 11 is the nearer test. Economists expect headline inflation near 3.4%. A hot print would firm up the case for a hike and likely extend pressure on risk assets. A cooler one could revive the inflow run that defined late August, when Bitcoin climbed from the low $70,000s back toward $80,000.
Why the split matters
The divergence between Bitcoin and the altcoin funds on the same day is the detail worth watching. It is not a wholesale exit. Money left the largest, most liquid product group and showed up in ether and Solana funds that had been bleeding earlier in the week. Tuesday’s session told the mirror-image story, when XRP funds took in nearly $2 million while bitcoin, ether, Solana and Hyperliquid funds all lost money.
That kind of churn inside the ETF wrapper suggests positioning rather than conviction. Traders appear to be hedging into the CPI print and the Fed decision rather than taking a directional view on any single asset. Whether the altcoin inflows hold once the macro picture clears is what the next week of flow data will show.
For issuers, the stakes are commercial as much as strategic. Fee cuts keep coming: Morgan Stanley priced its ether and Solana trusts at 0.14%, the lowest in the US, and Canary’s staked TRX fund began trading on Cboe this week, extending the product range well beyond Bitcoin and ether. Grayscale’s Zcash ETF passed $500 million in assets two weeks after its debut, another sign that demand is spreading down the altcoin list. In a year where net flows are negative, every basis point and every new ticker is a fight for the same pool of allocations.
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