Bitcoin ETFs pull nearly $3 billion in seven days and flip 2026 flows positive

[Sophie80]

Not strictly a quantum story, but it matters for context whenever we talk about how much value sits behind Bitcoin's cryptography. Decrypt reports that US spot Bitcoin ETFs took in $134.5 million on Friday, making it seven straight trading days of inflows. The run started on September 17 and has brought in about $2.98 billion in total

That is a sharp turnaround from mid-September. The funds lost $450.4 million on September 15, their worst day since June, after the failed cloture vote on the Clarity Act, and then another $295.9 million the following day. Since then inflows have outpaced those losses by roughly four to one. The biggest single day came on September 21, when nearly $1 billion came in, the best day since October 2025

That surge pushed Bitcoin above the average ETF holder's cost basis, which Bloomberg analyst James Seyffart estimated at $81,722. It put the typical fund investor back in profit for the first time since January. Through Thursday, Farside data showed net inflows of $886.8 million for 2026, a swing of about $6.6 billion from July 13, when the year was $5.69 billion in the red. Tallies do vary by tracker, and Bloomberg put year-to-date flows at around $320 million earlier in the week

Cumulative inflows since launch stand at $58 billion according to Decrypt's tracker, with total net assets of about $108.42 billion and Bitcoin trading near $84,020 at the time of writing. Matching last year's $21.35 billion in inflows would need roughly $300 million a day through December. The current streak has comfortably beaten that pace on average

Here is why I think it belongs on this forum. More than $100 billion now sits in regulated funds whose custodians have to answer to auditors and regulators. Those custodians are exactly the players now writing post-quantum custody plans, as Coinbase has been talking about. Institutional money arriving at this scale is likely to push the quantum migration conversation harder than any cypherpunk argument ever did

Does anyone think ETF issuers will eventually start mentioning quantum readiness in their disclosures? I would not be surprised to see it appear in risk factor sections before any soft fork is agreed

Bitcoin ETFs Notch Seven-Day Winning Streak as 2026 Flows Turn Green - Decryptdecrypt.co

[Ann]

Nearly $3 billion in a week shows how quickly sentiment swings with these funds

Two weeks ago the headlines were all about outflows. Now everyone is talking about records again