US spot bitcoin ETFs returned to net inflows on September 14, taking in $160.05 million after five consecutive trading days of redemptions, according to SoSoValue data. BlackRock’s IBIT led with $134.35 million, followed by Fidelity’s FBTC at $53.33 million.
The reversal ends a stretch that had erased much of the category’s early-September momentum. Between September 8 and 11, US spot bitcoin funds lost roughly $463 million, capping what had been their best inflow streak of 2026. The last net inflow session before Monday’s was September 4, when Fidelity’s FBTC alone brought in $57.2 million.
Morgan Stanley’s MSBT added $9.75 million and Franklin Templeton’s EZBC $4.57 million in the latest session, while the remaining products recorded no net flows. The category’s combined assets under management now stand at about $100.09 billion, equal to roughly 6.3 percent of bitcoin’s total market value.
The outflow streak in context
The five-day redemption run was driven mostly by large funds. BlackRock’s IBIT saw clients pull $19.23 million on September 11, the largest single-fund redemption that day, though that equals about 0.03 percent of the fund’s assets, which exceed $60 billion. ARK 21Shares’ ARKB led a heavier session on September 9 with $78 million in redemptions, and Grayscale’s GBTC shed $27.2 million the same day.
Even at the low point, the category’s longer ledger stayed positive. US spot bitcoin ETFs had taken in roughly $3.8 billion in the three weeks before the streak began, including a record single-day inflow of $731 million on September 3. The five-day losses erased less than a quarter of that single day’s intake. IBIT’s cumulative net inflows since its January 2024 launch now stand near $64.1 billion, still the largest in the category by a wide margin.
The daily rhythm matters as much as the totals. Redemptions from spot ETFs are mechanical: when an investor sells shares, the fund’s custodian, Coinbase Prime in IBIT’s case, sells bitcoin to meet the creation-unit redemption. BlackRock does not make a market call. That distinction matters for anyone reading outflow headlines as a signal about the issuer’s own view of the asset.
It also means the flow data measures allocator behavior, not issuer conviction. The September 11 session showed how mixed a single day can be: while IBIT lost $19.23 million, Morgan Stanley’s MSBT took in $3.76 million and VanEck’s HODL added $2.18 million, leaving the category with only about $13 million in net redemptions despite the headline fund’s losses.
Ethereum funds ran the other way
While bitcoin funds bled through last week, ether products kept taking money in. US spot ethereum ETFs recorded $121 million of net inflows on September 14, with BlackRock’s ETHA leading at $80.50 million and Grayscale’s Ethereum Mini Trust adding $16.23 million. That extended a four-week positive run for the category.
The September tally now favors ethereum: ether ETFs have taken in about $324.4 million this month against bitcoin’s $307.3 million, a reversal from the usual hierarchy. Part of the ether demand is structural rather than directional. Traders have been using spot ether ETF shares as collateral for CME futures trades, a basis strategy that generates demand for the funds without expressing a view on price.
BlackRock’s staking ETF ETHB has been the quiet standout. Between July 28 and September 11 the fund recorded 20 days of inflows totaling $307.72 million without a single day of net redemptions, and its net assets crossed $1 billion roughly six months after launch. The fund stakes between 70 and 95 percent of its ether holdings, paying a monthly distribution from staking rewards, and held about 313,789 staked ether as of September 11, roughly 75 percent of assets. Its 30-day staking rewards rate stood at 1.52 percent.
Solana funds joined the inflow side too. US spot Solana ETFs took in $11 million on September 14, with Bitwise’s BSOL leading at $7.1 million and crossing $1.04 billion in cumulative inflows. Grayscale’s GSOL added $3.9 million. Even the HYPE complex, which lost $26.4 million over the week of September 7 to 11, saw Grayscale name Hyperliquid a 5.76 percent allocation in its new advisor model portfolios on September 14, a small but visible endorsement from a major issuer.
What flows mean for price
Bitcoin traded near $77,800 in Tuesday’s Asian session, pulling back from a Monday high above $79,000 as the Senate prepared a procedural vote on the Clarity Act and oil prices held above $100 a barrel. Ether changed hands near $2,510 and Solana near $102. ETF flows are only one input, but the category’s 2026 ledger remains negative: roughly $1 billion in net outflows year to date, meaning aggregate investors have been net sellers even through the recent recovery weeks.
The year-to-date picture sharpens the contrast with ethereum. Ether ETFs have taken in roughly $863 million in 2026 against bitcoin’s $1 billion of net outflows, and ether has also outperformed on price, gaining about 33 percent between August 11 and September 10 versus bitcoin’s 23 percent. Bitcoin’s dominance by market value sits near 57 percent, little changed on the week.
The next test is whether the Monday inflow marks a durable turn or a one-session bounce. September 3’s record day was followed by eight straight sessions of net redemptions or near-zero flows. Traders watching the FOMC decision on Tuesday will get a cleaner read on whether institutional demand for bitcoin exposure survives a hawkish outcome, with a quarter-point hike widely expected. The Senate vote on the Clarity Act, scheduled for 2:15 p.m. ET, adds a second binary event to the same session, and both could move flows faster than any weekly trend.