US spot bitcoin ETFs took in a net $526.7 million on Monday, 19 Oct, according to Farside data, their largest daily total since 22 Sep. BlackRock’s IBIT drew $665.2 million, its biggest day since 7 Oct 2025, while Fidelity’s FBTC lost $83.6 million and Grayscale’s GBTC $54.9 million. CryptoWatchDesk’s last ETF Desk covered Friday’s $82.4 million outflow.
Monday was one fund’s day. Without IBIT, bitcoin funds would have lost $138.5 million. October shows the same split: IBIT is up $854.7 million this month, while FBTC is down $555.5 million and ARKB $214.9 million.
Ether funds went the other way, losing $103.3 million, $95.4 million of it from BlackRock’s ETHA. Solana funds lost $6.7 million.
| Fund | Net flow, 19 Oct ($M) | Week to date ($M) |
|---|---|---|
| IBIT (BlackRock) | +665.2 | +665.2 |
| FBTC (Fidelity) | −83.6 | −83.6 |
| GBTC (Grayscale) | −54.9 | −54.9 |
| Other bitcoin funds (net) | 0.0 | 0.0 |
| Bitcoin ETFs total | +526.7 | +526.7 |
| ETHA (BlackRock) | −95.4 | −95.4 |
| FETH (Fidelity) | −6.0 | −6.0 |
| ETHE (Grayscale) | −1.9 | −1.9 |
| Other ether funds (net) | 0.0 | 0.0 |
| Ether ETFs total | −103.3 | −103.3 |
| BSOL (Bitwise) | −4.9 | −4.9 |
| FSOL (Fidelity) | −1.8 | −1.8 |
| Other Solana funds (net) | 0.0 | 0.0 |
| Solana ETFs total | −6.7 | −6.7 |
Source: Farside Investors, US-listed spot funds; the week to date is Monday’s session only. “Other” groups the remaining listed funds in each category, all at zero.
Monday leaves bitcoin funds down $88.0 million in October after 13 sessions, from a $614.7 million deficit after Friday. Ether funds are down $1,058.4 million this month and have had outflows on 12 of 13 sessions; Solana funds are down $57.0 million. Flows record what authorised participants created and redeemed; they are not a forecast.
Bitcoin was near $82,030 on Kraken at 04:03 UTC on Tuesday, and this morning’s First Print has the levels.
BlackRock also filed on Monday to add an iShares Bitcoin Managed Protection ETF, ticker PBIT, to its iShares Trust, an SEC filing shows. The fund “seeks to provide upside exposure to the iShares Bitcoin Trust ETF (IBIT) and/or similar bitcoin exposure up to an approximate limit, while seeking to provide a level of downside protection.”
It would not hold bitcoin or IBIT directly. Instead it would hold three overlapping monthly tranches of call spreads, using options on IBIT or similar bitcoin exposure, plus fixed-income investments. The filing leaves the fee and listing exchange blank. For how the underlying spot funds create and redeem shares, see what a spot bitcoin ETF is.
Related: Switzerland approves its first bitcoin ETF for retail investors
Related: The next ETF Desk, for Tuesday 20 Oct
This article is for information only and is not investment advice.