$4B BTC in 4 weeks: How Bitcoin ETFs buy more than double the BTC mined
U.S. spot Bitcoin ETFs added $1.63 billion final week, bringing four-week internet consumption to $3.96 billion and marking 9 constructive weeks out of the final twelve.
The 12-week rolling sum stands at $6.08 billion, roughly mid-range for 2025 primarily based on CryptoSlate’s inside tracker constructed from fund disclosures and public circulation tables.
Year to this point, internet inflows complete $22.78 billion, with $58.44 billion since inception.
An assets-under-management proxy is $155.9 billion, whereas the common weekly worth traded over the previous 4 weeks is $16.17 billion in contrast with a 12-week common of $17.90 billion.
Flows re-accelerated into the flip of the quarter as the coverage and macro backdrop shifted.
The Federal Reserve lower charges in September, and market pricing tilts to additional easing in the fourth quarter, decreasing the hurdle for rate-sensitive allocators that use ETFs so as to add publicity.
The first day of the U.S. government shutdown pushed gold to report highs and the greenback decrease, a cross-asset combine that has traditionally coincided with stronger crypto ETP prints. Global product information corroborate the flip.
CoinShares logged consecutive weekly inflows by means of late September, with Bitcoin capturing the majority of tickets, and $1.03 billion went into digital asset funds in the week to Sept. 29, together with $790 million into Bitcoin automobiles. Liquidity stays ETF-centric.
Kaiko Research finds that U.S. hours have held a bigger share of depth since the ETF launch and that ETF internet flows clarify solely a modest share of day by day BTC returns, with an R² close to 0.32. This is a reminder that derivatives and macro nonetheless drive a big portion of variance.
With This autumn underway, easy situation math frames the path for internet flows and the way a lot Bitcoin could possibly be absorbed from circulating provide.
The previous 4 weeks annualize to roughly $12.9 billion for the quarter, whereas the 12-week run-rate implies about $6.6 billion. The outer bands are supplied by the 2025 extremes.
At an illustrative Bitcoin worth of $115,000, every $1 billion over a four-week window maps to about 8,700 BTC of internet shopping for, roughly 311 BTC per day.
Post-halving issuance averages close to 450 BTC per day, or roughly 41,400 BTC over a 92-day quarter. The desk beneath interprets these charges to This autumn totals.
| Scenario | Assumption | This autumn internet flows (USD) | BTC absorbed at $115k | vs. miner issuance |
|---|---|---|---|---|
| Bull, retouch 2025 finest 12-week tempo | +$17.1B per 12 weeks | ~+$18.5B | ~161,000 BTC | ~3.9× quarterly issuance |
| Base, maintain final 4-week tempo | +$3.96B per 4 weeks | ~+$12.9B | ~112,000 BTC | ~2.7× |
| Moderate, revert to 12-week common | +$6.08B per 12 weeks | ~+$6.6B | ~57,000 BTC | ~1.4× |
| Bear, revisit 2025 worst 12-week run | −$4.56B per 12 weeks | ~−$4.9B | ~−43,000 BTC | ≈−1.0× |
In the Base path, U.S. spot Bitcoin ETFs would retire about 112,000 BTC from float this quarter, or roughly 2.7 instances new issuance. This magnitude tends to tighten spot availability and hold foundation supported when danger urge for food is regular.
August’s CPI printed 2.9 p.c 12 months over 12 months, serving to reinforce the disinflation plus easing narrative that underpins allocator demand.
Seasonality provides a behavioral layer, with traders pointing to October’s historic energy for crypto.
The rolling 12-week sum of internet flows reveals flows falling towards the common after equaling the 2024 peak in mid July. Thus, latest weekly inflows surpass the present common development, indicating a possible reversal in previous patterns.
However, if the historic development continues, internet outflows may attain round $500 million per week by December.
Microstructure continues to evolve round ETF exercise.
Kaiko’s work reveals more buying and selling clustered round U.S. creation and redemption home windows, and that liquidity throughout these hours carries more weight in discovery than it did earlier than ETF launch, which helps clarify why worth can grind even when circulation prints are blended.
The correlation framework, with ETF circulation explaining solely a part of day by day returns, additionally means macro releases, funding, and positioning on CME matter for the day-to-day path. Traders watching futures open interest and quantity can use CME metrics to cross-validate danger urge for food alongside fund flows, with Kaiko’s dashboards offering a consolidated view of depth and spreads throughout venues.
Rotation stays a subplot. U.S. spot Ethereum ETFs have drawn regular allocations since July, and a sell-side replace this week framed ETH as a relative gainer at the margin. (*4*) reported Citi lifted its year-end ETH goal and trimmed BTC primarily based on perceived shifts in investor flows.
For now, the U.S. stays the marginal purchaser in this cycle, and CoinShares’ late-September replace confirmed Bitcoin nonetheless dominating weekly tickets throughout international ETPs.
Short-term dangers focus round information and coverage timing.
The authorities shutdown could delay or distort early-month macro prints, together with nonfarm payrolls and CPI, amplifying narrative swings when traders have fewer anchors.
That makes the ETF tape a good more seen thermometer for danger sentiment as This autumn begins.
If the latest four-week run fee holds, quarter-to-date internet consumption would observe close to $13 billion by year-end.
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