Bitcoin price has fallen more than 5.5% over the past week, sliding from above $77,000 to around $72,600 on Thursday as risk sentiment weakened. The move extends a broader pullback from early May’s highs above $82,000, leaving bitcoin price trading near 6–7% lower week-on-week as surging spot ETF outflows and US‑Iran tensions pressure prices.
BlackRock’s iShares Bitcoin Trust recorded $527.84 million in net outflows on Wednesday, its second-largest single-day withdrawal since the fund launched in January 2024 — falling short of the all-time record by roughly $500,000. The figure lands within a broader retreat across the U.S. spot bitcoin ETF complex, which together shed $733.43 million that day, the largest combined daily outflow since late January.
Despite the headline numbers, context matters. IBIT remains up more than $2 billion in year-to-date flows and has accumulated $64 billion in lifetime net inflows since launch, placing it in the top 2% of all ETFs by cumulative flows. Wednesday’s $528 million draw represents less than 1% of that total.
The outflow did not occur in isolation. Bitcoin price fell through the $73,000 level during Asian trading hours Thursday, declining 3.4% over 24 hours to $72,978. The immediate catalyst was a fresh round of U.S. airstrikes on an Iranian military site near the Strait of Hormuz, reigniting geopolitical risk that markets had begun to discount.
As investors redeemed ETF shares, BlackRock and other issuers were forced to sell underlying bitcoin to settle those exits, feeding the price decline and the outflow data in a loop.
Alongside IBIT, Grayscale’s GBTC shed $104.76 million and Fidelity’s FBTC lost $60.30 million on the same day. Morgan Stanley’s MSBT was the only spot bitcoin ETF to post positive flows, drawing in $4.3 million, according to Bitcoin Magazine Pro data.
The massive Bitcoin block trade
One factor feeding Wednesday’s outflow number was a transaction that took place Tuesday. A single investor sold $1.29 billion of IBIT shares in a dark-pool block trade — a privately negotiated transaction designed to let large players move substantial size without tipping off the broader market. Bitcoin price was around $78,000 at the time.
Bloomberg Senior ETF Analyst Eric Balchunas flagged the trade, noting it involved 29.2 million IBIT shares and helped push total bitcoin ETF volume on Tuesday to $4.4 billion, the highest since April 17.
A dark-pool sale is not the same as a net outflow. Buyers absorb the other side of the transaction, so the fund itself does not necessarily see redemptions. IBIT’s actual net outflow on Tuesday came to $192.44 million — large, but separate from the block trade headline. The two events together point to institutional players reducing bitcoin exposure, whether through direct redemptions or secondary market exits.
The outflow data reflects a trend that has been building through May. Net ETF accumulation across the year had thinned to approximately 4,500 BTC, and May flipped from the steady buying seen in March and April into net distribution.
Bitcoin price has fallen from above $82,000 on May 6 to under $73,000, and the ETF channel that drove much of the 2025 bull run has spent the past several weeks pulling capital in the opposite direction.
Bitcoin price debasement
JPMorgan added another layer to the picture Wednesday, noting that the pandemic-era “debasement trade” — the thesis that bitcoin and gold serve as hedges against currency erosion — appears to be cooling.
The bank suggested that institutional futures positions and ETF outflows in both assets reflect investors pricing in a potential U.S.-Iran resolution before one materializes.
IBIT has weathered extended outflow streaks before during this cycle without a permanent reversal, with capital returning each time the macro backdrop cleared. Whether this episode follows that pattern depends on the trajectory of Middle East tensions and whether the rotation out of crypto into equities proves short-lived or structural.
At the time of writing, the bitcoin price is near $72,800.
