- American spot Bitcoin ETFs lost a net net loss of approximately $399 million on Monday, following an outflow of $643 million. on Friday.
- BlackRock’s IBIT alone generated USD 405.3 million. The inflow into Fidelity’s FBTC reduced the net outflow from the entire market to approximately $399 million.
- According to Galaxy Research, some large investors previously limited their positions because they earned less from arbitrage. However, the analysis ends in June and does not explain the current outflows.
USD 405.3 million flowed from IBIT
On Monday, $405.3 million came out of BlackRock’s IBIT, more than the outflow from the entire market. Fidelity’s FBTC was the only fund with an inflow: it attracted approximately $6.7 million. In the remaining funds, flows were zero. The total asset value of these ETFs was approximately USD 98.1 billion.

Who has reduced positions in ETFs before?
According to Galaxy, institutions submitting 13F reports had shares in spot ETFs corresponding to approximately PLN 355,000 at the end of September 2025. BTC, and at the end of June 2026 approx. 307 thousand. BTC. Nine companies, including Millennium, Goldman Sachs, Brevan Howard and DE Shaw reduced their exposure by approximately PLN 68,000 during this time. BTC, which is more than the positions of all these institutions fell combined.
Galaxy attributes these reductions to lower arbitrage profitability, rather than to a change in expectations about the price of bitcoin. The funds bought ETFs and sold futures contracts at the same time, making money on the price difference. As this gap decreased, the strategy no longer paid off. After taking into account the costs, it was difficult to justify it instead of buying T-bills, according to Galaxy analyst Alex Thorn.
On the other side, they bought, among others: Morgan Stanley’s wealth management division and Abu Dhabi sovereign funds, Mubadala and Abu Dhabi Investment Council. About 2.2 thousand other institutions increased their total positions in ETFs by the equivalent of approximately PLN 20,000. BTC.

What does this mean to you

What is not known yet
It is not known who was responsible for the outflows from IBIT on Friday and Monday. 13F reports for the third quarter, submitted by November 16, will show the status at the end of September. Therefore, they will not cover transactions from October 30 and November 2. Later reports will also show items at the end of the quarter rather than a list of each day’s transactions.