Sophia Bennett
Crypto Analyst
Tuesday's Bitcoin ETF market had one move that left analysts doing a double take.
A single investor dumped over a billion dollars worth of shares in BlackRock's Bitcoin ETF, which trades under the ticker IBIT, in one dark pool trade.
A dark pool trade is a privately negotiated transaction that allows major players to buy or sell huge amounts of stock without alerting the open market or immediately crashing the price. It's how big money moves quietly, and this one was anything but small.
Alex Thorn, head of research at Galaxy, flagged the transaction on X, calling it the biggest of its kind he has ever seen. Thorn noted that the $1.289 billion trade took place at 10:30 a.m. ET.
What This Kind of Sale Usually Means
When someone moves over a billion dollars out of a position in a single shot, the market pays attention, and not in a good way.
When a single entity dumps over $1 billion in one shot, it is usually seen as a cautionary signal. The entity is wary of potential risk ahead and is scaling back exposure.
That said, the picture isn't entirely black and white. The transaction doesn't necessarily signify a withdrawal from the fund. While one entity made a high‑conviction move to exit, buyers may well have stepped in to soak up the volume. The net outflow is the final tally for the day after all the buying and selling across the entire market.
IBIT Still Recorded Significant Net Redemptions
Whatever buying stepped in, it wasn't enough to offset the selling pressure on the day.
IBIT had to process net redemptions worth $192.44 million, according to data source SoSoValue. This suggests that overall momentum was controlled by investors heading for the exit.
One massive seller. Insufficient buyers to absorb it all. The result is net outflow, which is exactly what bulls don't want to keep seeing day after day.
The Broader ETF Bleed Is Getting Serious
Tuesday's whale trade didn't happen in isolation. It dropped into an already deteriorating ETF market.
It was just one on a day that saw total net outflows from the 11 spot ETFs increase to $334 million. The ETFs have suffered net outflows for seven straight days, the second‑longest run since their inception in January 2024, losing $1.88 billion. The longest consecutive outflow streak is eight trading days, occurring twice: in late August–early September 2024 totalling $1.2 billion, and again in February 2025, totalling $3.3 billion.
Seven consecutive days of outflows. The current streak is already in rare territory, and it's not over yet.
Two Weeks of Damage Adding Up Fast
Investors have now yanked a total of $2.26 billion from the ETFs over the past two weeks. If these massive exits continue, the price of bitcoin may continue to lose ground.
The largest cryptocurrency has already pulled back to under $77,000 from highs above $82,000 on May 6.
The trend is clear and the numbers are getting harder to explain away. Whoever sold $1.29 billion on Tuesday clearly saw something they didn't like, and right now, the rest of the market is starting to see it too.