US Bitcoin ETFs Draw $191 Million in Sixth Straight Inflow Session, Led by IBIT

Key Facts

U.S. spot Bitcoin funds drew about $191 million of net inflows on September 24, their sixth consecutive positive session. BlackRock’s iShares Bitcoin Trust ETF, known by the ticker IBIT, accounted for about $163 million of that total. The funds held approximately $108.92 billion in combined net assets. Those figures show that most of the new money went to one product, even though the headline total covers the whole group. The distribution of flows across funds therefore matters alongside the aggregate when assessing the strength of demand on a particular day.

The detailed figures sharpen the rounded total: the funds recorded about $190.65 million of net inflows, including $162.63 million for IBIT. Fidelity’s FBTC added about $12.86 million, MSBT drew about $10.16 million, EZBC took in about $4.88 million and BITB received about $4.13 million. WisdomTree’s BTCW, by contrast, lost about $4.02 million, reducing the group’s net result. After rounding, those components are consistent with the reported $191 million total for the session. They also show why a positive sector-wide figure does not mean every individual fund attracted money.

IBIT supplied the largest share of new money, making its contribution central to interpreting the day’s result. Its $162.63 million inflow was far larger than FBTC’s $12.86 million, the next-largest figure among the products identified. A dominant fund can keep the combined tally positive even when smaller funds record withdrawals. It also makes subsequent IBIT readings important: broader inflows elsewhere would have to compensate if its contribution weakened. This comparison describes where the money went; it does not establish who bought the shares or why investors selected one fund over another.

The fund’s structure explains why investors watch flows as well as Bitcoin’s price. IBIT’s prospectus says the trust primarily holds Bitcoin with a custodian and issues shares representing interests in its net assets. Authorized participants can create or redeem baskets of shares for cash or Bitcoin, while investors trade the shares in the market. Net creations produce a positive fund flow, and a cash creation can require the trust to acquire Bitcoin for settlement. Dollar inflows, however, are not an immediate one-for-one measure of spot-market Bitcoin purchases because the settlement method and timing affect that link.

The $108.92 billion figure measures the Bitcoin funds’ net assets, rather than the amount invested on September 24. The roughly $191 million figure measures one session’s net flow after subscriptions and withdrawals are combined. Net assets also change when the market value of Bitcoin held by the funds changes, even if the number of units does not. Assets can therefore rise when flows are weak, or fall despite fresh money if the price effect is larger. Separating the stock of assets from the daily flow helps investors judge whether apparent sector growth came from new purchases or a repricing of existing holdings.

September 24 followed several larger positive sessions, putting the continuation of the streak in context. The funds recorded about $347.0 million on September 23, $714.7 million on September 22 and $999.0 million on September 21. They also recorded about $433.0 million on September 18 and $159.5 million on September 17, completing six consecutive sessions of positive net flows through September 24. The latest tally was smaller than the September 23 result, although its direction remained positive. That distinction matters: a streak describes the sign of each reading, while the size of each reading shows how strongly money was entering.

Bitcoin closed at $84410.24 on September 24, compared with $84397.60 on September 23, according to EL7 data. Its September 24 trading range was $82874.93 to $84942.45. These prices place the fund flow reading beside the market for the asset the funds seek to track, without treating flows as the explanation for every price change. Fund flow reporting and Bitcoin’s continuous trading also follow different clocks from U.S. share trading. For an IBIT holder, changes in Bitcoin’s value remain a direct influence on the trust’s holdings even when its daily net flow is positive.

BlackRock shares, traded as BLK, closed at $1073.45 on September 24, against $1060.89 in the preceding session, according to EL7 data. The stock traded between $1053.49 and $1073.77 during September 24. Its move gives context for the issuer, but BLK represents ownership in BlackRock, whereas IBIT shares provide exposure to Bitcoin held by the trust. An investor in BLK therefore has a different set of direct exposures to monitor from an investor in IBIT. A single day of movement in BlackRock shares does not establish that Bitcoin fund inflows caused the stock’s gain.

For an IBIT holder or prospective buyer, the flow number does not replace a comparison between the trading price and net asset value. The trust’s prospectus cautions that its shares can trade at a price different from their net asset value despite the creation and redemption mechanism. The disclosed sponsor fee is 0.25%, an ongoing cost relevant when comparing the product with direct Bitcoin exposure. Positive inflows also cannot ensure a profit if Bitcoin falls, because the trust seeks to reflect Bitcoin’s performance before expenses. A short position faces the opposite risk if inflows continue or Bitcoin rises, but flows alone cannot specify the timing or scale of either move.

The next sessions’ flow figures will test whether the positive streak continued beyond September 24 or came to an end. IBIT’s own reading will matter particularly because it supplied the largest part of the latest aggregate. Comparing FBTC, MSBT and BTCW will show whether demand spreads across products or remains concentrated. Bitcoin’s price and IBIT’s trading price will provide separate measures of the market effect on investors, whatever the balance of creations and redemptions. Another positive session would extend the flow streak; a net outflow in the next session would end the reported run.