US spot Bitcoin (BTC) ETFs took in a net $82.9 million in the week of September 28 to October 2, 2026, down from $2.39 billion the week before, after a $148.7 million outflow on September 30 ended a nine-day inflow streak. Spot Ether (ETH) ETFs lost $118 million over the same week.
Why did Bitcoin ETF flows fall on September 30, 2026?
Farside Investors records the daily net flows into US spot Bitcoin ETFs below. The five sessions sum to the $82.9 million weekly figure that CoinSpectator reports from the same data.
| Date | Net BTC ETF flow | Note |
|---|---|---|
| Sep 28, 2026 | +$31.0M | Streak day 8 |
| Sep 29, 2026 | +$66.2M | Streak day 9 |
| Sep 30, 2026 | -$148.7M | Streak ends |
| Oct 1, 2026 | +$102.7M | Rebound |
| Oct 2, 2026 | +$31.7M | Jobs report day |
CryptoSlate reports that Fidelity's FBTC lost $125.6 million on September 30, Bitwise's BITB $13.6 million and BlackRock's IBIT $9.5 million. FBTC therefore accounted for about 84% of the day's net outflow. The streak it interrupted had brought in roughly $3.08 billion over nine sessions, per the same report.
Two caveats on the October 2 print. Farside's table shows inflows only for FBTC ($29.3 million) and Microsoft's MSBT ($2.4 million), with every other fund at $0.0 million. CryptoSlate notes that the missing IBIT entry leaves post-payroll demand unresolved. The weekly total can still be revised.
The jobs report landed on the same day. The Bureau of Labor Statistics reported September nonfarm payrolls of +29,000, an unemployment rate of 4.2% and an August figure revised to +133,000 from +162,000. crypto.news cites a Reuters survey that expected +90,000. Bitcoin had reclaimed $85,000 earlier on October 2, according to crypto.news.
Ether funds moved the other way. CoinSpectator puts the week's Ether ETF outflow at $118 million, and 24/7 Wall St. reports $59.6 million of it left on September 30 alongside $11.1 million from Solana (SOL) funds.
Where analysts disagree
The dispute is whether September 30 was noise or the first sign of fading demand.
The noise reading comes from Bloomberg's Eric Balchunas, as relayed by CryptoSlate. He called the rebound after eleven months of pressure notable, and argued that one outflow day without broad redemptions across the major issuers does not show lost momentum. 24/7 Wall St. makes a mechanical case: Bitcoin rose about 36% in the quarter, Ethereum about 57% and Solana about 48%, so fixed-allocation holders trimming at quarter-end would produce outflows without any change in conviction.
The fade reading rests on timing. CryptoSlate points out that most forced short-covering buying came before the payroll release, and that by 15:40 UTC on October 2 Bitcoin was more than 1% below its pre-release level. Daily inflows of $31.0 million, $66.2 million and $31.7 million are also small beside the $2.39 billion week of September 21 to 25 that we covered in our post on the strongest ETF week of 2026. Neither side has direct evidence of intent, because ETF data records net flows and not who traded.
Why it matters
ETF creations and redemptions are the cleanest daily read on US spot demand for Bitcoin. A rebalancing outflow and a demand outflow look identical in the headline number, so the second-order data decides the reading: how many issuers lose money on the same day, and whether the next sessions rebuild.
Cumulative flow still sits below the prior peak. Citing Bloomberg Intelligence, CryptoSlate puts it near $57.7 billion in late September against a $62.8 billion peak on October 10, 2025 and a $50.9 billion low on July 13, 2026. That is a gap of about $5 billion. CryptoSlate puts year-to-date net inflow at roughly $930 million as of the end of September.
Rates are the second channel. Glassnode estimated, per CryptoSlate, that the probability of a Fed hike at the October 28 meeting fell from 66% on September 28 to 22% on October 2. A softer rate path is the case for demand returning. We looked at the earlier slowdown in our post on inflows slowing to $66.2 million.
What to watch
- Farside's daily Bitcoin ETF totals for October 5 and later: a return to inflows above $100 million would favor the rebalancing reading, and a second outflow day would test it.
- Whether Farside fills in the October 2 IBIT entry and revises the $82.9 million weekly total.
- The Institute for Supply Management services report due Monday, October 5, 2026, flagged by CryptoSlate as the next macro data point.
- The Federal Reserve meeting on October 27 and 28, 2026, which crypto.news lists as the next decision.
- Levels cited by crypto.news: $82,000 as support and $87,500 as resistance.
Bottom line
- US spot Bitcoin ETFs netted $82.9 million in the week of September 28 to October 2, 2026, against $2.39 billion the week before (Farside, CoinSpectator).
- The $148.7 million outflow on September 30 ended a nine-day streak, and FBTC supplied about $125.6 million of it (CryptoSlate).
- September payrolls were +29,000 against a +90,000 survey expectation, per the BLS and crypto.news.
- Balchunas and 24/7 Wall St. read the outflow as noise or quarter-end rebalancing, while CryptoSlate treats post-payroll demand as unproven.