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US spot Bitcoin ETFs reduced their year-to-date net outflows by 66% as Bitcoin gained about 25% in August, while Ether ETFs turned positive YTD at $732 million and XRP ETFs reached $502 million.
US-listed spot Bitcoin exchange-traded funds (ETFs) capped their best month of 2026 alongside Bitcoin’s biggest monthly gain since November 2024.
Bitcoin ETFs attracted $3.52 billion in net inflows in August, their highest monthly total of 2026 and a sharp increase from just $172 million in July, according to SoSoValue data.
Bitcoin (BTC) gained about 25% in August, its strongest monthly performance since a 37.29% rally in November 2024, according to CoinGlass.
The August momentum quickly gave way to a weaker start to September, as ETF flows turned negative and Bitcoin briefly fell below $77,000.
August cuts year-to-date outflows by 66% to $1.77B
August’s $3.52 billion in Bitcoin ETF inflows cut year-to-date net outflows by roughly 66%, from $5.29 billion to $1.77 billion.
The biggest monthly outflows came in June at $4.51 billion, followed by $2.43 billion in May and $1.61 billion in January, according to SoSoValue data.
September starts with $236M in Bitcoin ETF outflows
US spot Bitcoin ETFs started September with $236.46 million in net outflows on Tuesday, reversing the $216.70 million in net inflows recorded on Monday. The withdrawal marked the largest daily outflow since July 31, when the funds shed $265.37 million.
The reversal came as Bitcoin briefly fell below $77,000 on Tuesday after trading above $80,000 in late August, according to CoinGecko.
Ether and XRP ETFs remained in positive territory on Tuesday. Spot Ether (ETH) ETFs attracted around $11 million on Tuesday, while spot XRP (XRP) ETFs drew $14.4 million.
August pushed Ether ETFs into positive territory for 2026, with $732 million in year-to-date net inflows after they ended July about $1.12 billion in the red.
XRP ETFs reached $502 million in year-to-date net inflows, up about 46% from $343 million at the end of July.

Michael Saylor’s We’re Back post on August 30 was followed by an official disclosure from Strategy on August 31: the company had resumed Bitcoin accumulation, purchasing 4,603 BTC for $369.7 million.
The purchase was made between August 24 and August 30, 2026, at an average price of $80,318 per BTC
Read the official Strategy Form:
https://assets.contentstack.io/v3/assets/bltf8d808d9b8cebd37/blt3276071079cd1642/6a9497da8814aaf69389c17b/form-8-k_08-31-2026.pdf
📄 PAGE 1/5 — The Official Filing
The first page establishes the document as Strategy Inc.’s Form 8-K, filed with the U.S. Securities and Exchange Commission, with the report date of August 31, 2026.
This matters because the information is not merely a social-media claim or market rumor — it is part of a formal regulatory filing.
The filing identifies Strategy as the registrant and lists its publicly traded securities, including MSTR and its preferred securities.
Investor takeaway:
The purchase confirmation comes from a regulatory disclosure, giving the transaction considerably more weight than an unverified market post.
📄 PAGE 2/5 — The $369.7M Bitcoin Purchase
This is the most important page of the filing.
Strategy reported that during August 24–30 it purchased:
4,603 BTC$369.7 MILLION$80,318 average price per BTC
The filing also confirms that the Bitcoin purchases were funded through proceeds from Strategy's at-the-market (ATM) stock offering.
At the same time, Strategy's total Bitcoin holdings reached:
845,050 BTC$63.73 BILLION aggregate purchase price$75,412 average purchase price per BTC
The filing states that the aggregate and average purchase prices include fees and expenses.
Why this matters
This is not simply a company adding a few hundred Bitcoin to its treasury.
Strategy now controls 845,050 BTC, representing a substantial portion of Bitcoin's eventual 21-million-coin supply cap.
And the latest purchase was made around the $80K BTC level, meaning Strategy was willing to deploy hundreds of millions of dollars at that price.
📄 PAGE 3/5 — Preferred Shares & Liquidity
The third page provides additional information that is easy to overlook.
Strategy repurchased:
1,557,177 STRC shares
The company also disclosed that $364.8 million remained available under its preferred-stock repurchase program, while $1 billion remained available under its MSTR stock repurchase program.
The same page also gives an important look at Strategy's dollar liquidity.
As of August 30:
💵 USD Reserve: $5.10B💵 USD Cash: $1.61B
Combined, that represents approximately $6.71 billion in these two dollar liquidity pools.
Why investors should care
The company isn't putting every available dollar into Bitcoin.
It is maintaining substantial liquidity while simultaneously:
Buying BTC + repurchasing preferred stock + paying dividends + maintaining reserves.
That gives investors a better picture of Strategy's broader treasury strategy.
📄 PAGE 4/5 — Strategy's Public Disclosure Dashboard
Page four explains Strategy's Strategy Dashboard, which the company uses as a public disclosure channel.
The dashboard provides information including:
Bitcoin purchasesBitcoin holdingsMarket prices of Strategy securitiesKey performance indicatorsOther supplemental information
Strategy specifically encourages investors and others to regularly review information published through its dashboard.
Strategy's own Bitcoin Ledger also shows the latest acquisition taking holdings to 845,050 BTC.
Strategy Bitcoin Ledger Source ( If You Want To Read Just Copy And Paste On Browser)
https://www.strategy.com/ledger?utm
📄 PAGE 5/5 — The Filing Is Officially Signed
The final page contains the formal signature section.
The document is dated:
August 31, 2026
and is signed on behalf of Strategy Inc. by Thomas C. Chow, Executive Vice President & General Counsel.
That completes the five-page regulatory filing.
📊 What This Means for Bitcoin Investors
The biggest takeaway isn't simply that Strategy bought 4,603 BTC.
It's the capital-allocation signal.
Strategy had previously reduced its Bitcoin holdings during the summer. Its Bitcoin Ledger shows sales of 1,363 BTC on June 30 and 1,690 BTC on August 10, before the latest purchase returned the company to accumulation.
Now Strategy has reversed course with a purchase of 4,603 BTC.
That tells investors that the company was prepared to deploy nearly $370 million around the $80K level.
The numbers investors should remember:
→ 4,603 — latest BTC purchase
→ $369.7M — capital deployed
→ $80,318 — latest average purchase price
→ 845,050 — total BTC holdings
→ $63.73B — aggregate BTC cost
→ $75,412 — aggregate average cost
→ $602.8M — MSTR stock-sale proceeds
→ $6.71B — USD Reserve + USD Cash
All of these figures come from Strategy's August 31 Form 8-K
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