Bitcoin ETF outflows hit $1.72B weekly, led by BlackRock’s IBIT

U.S. spot bitcoin exchange-traded funds posted $1.72 billion in net outflows last week, their largest weekly redemption since February 2025, with BlackRock’s iShares Bitcoin Trust ETF carrying the bulk of the damage, according to data from SoSoValue cited by The Block. The episode is notable not merely for its scale but for its composition: exits were distributed across nearly every trading session of the week, suggesting something more systematic than a single day of panic selling.

Spot bitcoin ETFs launched in the United States in January 2024 and have since accumulated roughly $56.9 billion in cumulative net inflows and approximately $113.8 billion in total assets under management, according to SoSoValue data tracked by CryptoSlate. A single week of heavy outflows does not erase that record, but the speed and breadth of last week’s exits have prompted analysts to examine what shifted in the macro backdrop — and whether the product class’s most loyal holders are finally beginning to reassess their conviction.

Jobs data rattles rate-cut math

Andri Fauzan Adziima, research lead at Bitrue Research Institute, told The Block that the outflows were “primarily driven by macroeconomic headlines, especially the recent U.S. jobs data.” A stronger-than-expected non-farm payroll report reduced market expectations for Federal Reserve interest-rate cuts and pushed U.S. Treasury yields higher, making fixed-income instruments comparatively more attractive against non-yielding assets like bitcoin.

That dynamic is familiar to equity strategists: when real yields rise sharply, investors reallocate away from assets that generate no income. Bitcoin occupies an unusual position in that calculus — it is treated by institutional allocators partly as a risk asset, partly as a macro hedge, and partly as a speculative vehicle. When the macro justification for holding it weakens — cheap money drying up, real yields climbing — all three rationales weaken in parallel.

Asian equity markets declined in parallel as risk sentiment weakened globally, reinforcing the pattern. The bitcoin ETFs reported net outflows on every session of the week except Thursday, when the cohort recorded a marginal $3 million in net inflows — a figure that offered little cushion against the broader tide.

IBIT’s worst week since launch

BlackRock’s IBIT, the largest bitcoin ETF by net assets, alone shed $1.34 billion during the week, marking its heaviest weekly net outflow since the fund opened for trading in January 2024, The Block reported. According to ETF.com data compiled alongside Bloomberg terminal figures, IBIT held approximately 60 percent of the entire U.S. spot bitcoin ETF category’s total assets under management as of the most recent reporting period — a concentration that means flows into or out of the fund disproportionately drive headline category totals, magnifying both strong weeks and weak ones.

That figure is also striking in context: IBIT had been among the most resilient products in the cohort because its investor base skews toward longer-duration holders — retirement accounts, financial advisers, and institutional mandates — who are structurally less likely to redeem on short-term price noise. Bloomberg ETF senior analyst Eric Balchunas wrote on X (formerly Twitter) in early 2025 that the fund’s longer-duration holders were conducting what he called a “HODL clinic,” a reference to IBIT’s unusual tendency to absorb net inflows even during bitcoin price downturns. Last week’s numbers suggest even that base is not immune to a sustained macro repricing.

Not the first wobble in a strong year

Last week’s episode was not IBIT’s first significant outflow event in 2025, nor even its first of this magnitude. The fund had already experienced a heavy redemption period in December 2024, when U.S. spot bitcoin ETFs broadly posted outflows coinciding with a rise in Treasury yields and end-of-year portfolio rebalancing. Despite those earlier pressures, IBIT still ranked sixth among all U.S. ETFs by total inflows for the full year 2024, pulling in more than $37 billion across its first year of trading, according to CoinDesk, which cited Bloomberg data compiled by the ETF research team.

An earlier bout of outflows struck over the Christmas holiday period. On December 24, 2024, U.S. spot bitcoin ETFs posted $175 million in net outflows, with IBIT contributing $91.37 million and Grayscale’s GBTC another $24.62 million, CoinDesk reported. Analysts attributed that episode to reduced holiday liquidity, year-end tax-loss harvesting, and de-risking ahead of quarterly options expiry — factors distinct from the macro-driven repricing now underway.

The comparison matters for interpretation. Seasonal outflows tend to reverse quickly once the calendar resets, while outflows driven by a genuine shift in rate expectations can persist for multiple weeks. The current episode more closely resembles the February 2025 outflow period — also triggered by stronger-than-expected labor market data — than the holiday-liquidity episode of December 2024.

Grayscale’s persistent drag and the migration question

Grayscale’s GBTC, the converted trust that predated the spot ETF era, has seen persistent outflows since its January 2024 conversion, largely attributed to its higher fee structure relative to newer entrants such as IBIT and Fidelity’s FBTC. The U.S. spot ETF cohort collectively offset roughly $25 billion in cumulative GBTC outflows through year-end 2024, according to CryptoSlate, underscoring how much of the inflow story has been a migration of existing capital rather than purely fresh institutional demand.

That distinction matters for assessing the health of the category. New money entering bitcoin ETFs for the first time signals genuine broadening of institutional adoption; recycled money moving from GBTC into lower-fee products signals cost optimization within an existing pool of bitcoin holders. Analysts say both dynamics have been at work simultaneously, and disentangling them is difficult from public flow data alone.

What’s at stake for institutional adoption

The scale of the weekly outflow tests a core argument made by bitcoin ETF proponents at launch: that wrapping bitcoin in a regulated, exchange-listed product would attract a class of institutional and retail investors who hold through volatility rather than exit at the first sign of macro headwinds. The February 2025 outflow episode — the previous weekly record that last week surpassed — coincided with an earlier bout of Treasury yield pressure, establishing a now-repeating pattern.

Two data points do not make a definitive trend, but they do suggest the asset class remains sensitive to the same rate-expectations calculus that moves conventional risk assets, rather than trading as the uncorrelated alternative its advocates often promise. If bitcoin ETFs reliably sell off when Treasury yields spike — the same environment that weighs on equities and credit — their diversification value is reduced precisely when investors need it most. That is not a reason to dismiss the product class outright, but it is a reason for institutional allocators to model bitcoin exposure within a broader rates-sensitive bucket rather than as a standalone portfolio hedge.

What comes next

Whether last week’s outflow proves a temporary reset or the start of a sustained reversal depends in part on the Federal Reserve’s next moves. The fed funds futures market will be closely watched after the next jobs and inflation prints for signals on whether rate-cut expectations — and with them, appetite for bitcoin — recover. If inflation data soften and the jobs market shows any cooling, the macro justification for holding bitcoin ETFs strengthens; if yields stay elevated, outflow pressure is likely to persist.

BlackRock did not respond to a request for comment on the combined outflow figures. The next Federal Reserve policy decision and the following monthly jobs report represent the nearest scheduled events that analysts say will test whether last week’s outflows were an isolated shock or the opening of a wider retreat. For a product class still in only its second year of existence, the answer will help define what kind of asset bitcoin ETFs actually are — tactical trade, long-term allocation, or something in between.

Data in this article were drawn from SoSoValue, as cited by The Block and CryptoSlate; ETF.com compiled with Bloomberg terminal figures for IBIT’s category share; and CoinDesk for IBIT’s annual inflow ranking. Eric Balchunas’s characterisation of IBIT holders is sourced from his posts on X and reporting by Bloomberg Intelligence.