BlackRock Rescued Bitcoin ETFs’ Week while the Rest Bled

U.S. Bitcoin ETFs ended a two-week outflow streak with a $301 million weekly inflow, but BlackRock’s IBIT supplied all of it while the other funds combined lost money.

The figures come from Farside Investors’ daily flow data for October 19 to 23, checked on October 24.

Five sessions, one decisive day

Monday’s $526.7 million inflow was entirely IBIT’s doing. The fund took in $665.2 million while Fidelity’s FBTC lost $83.6 million and Grayscale’s GBTC lost $54.9 million. Wednesday was the only day when most funds bought: seven took in money, led by IBIT’s $235.0 million and FBTC’s $212.7 million. Thursday’s $635.6 million outflow was also widespread, with five funds losing money and ARK’s ARKB alone shedding $109.4 million.

Over the week, the first three sessions added $1.07 billion and the last two removed $773.5 million, about 72% of it.

Without IBIT, the week was negative

IBIT’s net inflow of $565.7 million was larger than the market’s entire weekly gain. Elsewhere, FBTC lost $116.6 million over the five sessions and ARKB $99.6 million. IBIT also led Friday’s withdrawals with $110.3 million, though that was roughly 0.17% of the $65.88 billion in net assets BlackRock reported on October 23.

The result still ends a run of withdrawals. Farside’s data shows outflows of $678.9 million in the week of October 5 and $228.4 million in the week of October 12, so this week recovered about a third of that $907 million. Fund-level data does not show who was buying, only where the money landed, a pattern that has also shaped how Ethereum ETF totals should be read.

What an outflow does and doesn’t tell you

Flow figures track creations and redemptions: shares issued or retired by authorized participants, the firms that deal directly with each trust. Shares that simply change hands between investors on the exchange do not count.

Since the SEC allowed in-kind creations and redemptions for crypto ETPs in July 2025, those firms can take Bitcoin out of a trust instead of cash, and IBIT’s filing for the quarter ended March 31, 2026 records in-kind deliveries. Coins that leave a fund can be sold, held or hedged, and daily flow data does not say which. Thursday’s $635.6 million outflow was not necessarily $635.6 million of Bitcoin sold on the market.

The test for next week

This article is provided for informational purposes only and does not constitute financial or investment advice. ETF flow figures are subject to updates and revisions.

Author

Alex is Editor-in-Chief of Coindoo and co-founder of Millennial Media Group, with nearly a decade of experience covering financial markets – crypto first, then everything else.

It started in 2016 with Bitcoin. Like most people at the time, he didn’t fully understand it – so he kept digging. Blockchain, tokenomics, the projects, the cycles. That curiosity never stopped, and eventually pulled him into traditional markets too: equities, commodities, macro. Not because he left crypto behind, but because you can’t properly understand one without the other.

What drives him is straightforward: he wants to know why something is happening, not just that it’s happening. Most market coverage stops at the headline – price up, price down, here’s a chart. Alex finds that kind of reporting actively unhelpful. If you walk away from an article without understanding the mechanism behind the move, what did you actually learn?

He holds a degree in Tourism from New Bulgarian University – not the most obvious path into financial markets, but markets have a way of pulling in people who are simply too curious to stay out. He has authored over 200 in-depth analyses and more than 10,000 articles across crypto and traditional finance. He still thinks every day in markets teaches him something new. That’s probably why he hasn’t stopped.

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