Bitcoin ETFs Post Record $2.39B Weekly Inflows as Price Holds Near $83K

US spot Bitcoin exchange-traded funds attracted $2.39 billion in net inflows during the week of September 21-25, marking the strongest weekly total since October 2025, according to data cited by Memeburn and CryptoSlate. The surge reversed a year-to-date outflow trend, shifting funds from roughly $5 billion in net outflows at July's end to about $1 billion in inflows by late September.

Bitcoin traded around $83,876 on September 28, down 2.3% for the week despite the record ETF demand. Roughly $531 million in leveraged positions were liquidated across the market in 24 hours, amplifying price volatility. Since August 19, Bitcoin has risen nearly 30%, outperforming the Nasdaq Composite's 5% and the S&P 500's 4% gains over the same period.

“Bitcoin has risen almost 30% since the announcement. However, the 10-year Treasury yield climbed about 81 basis points and long-dated borrowing costs reached multi-decade highs over the quarter, raising the hurdle for assets that produce no yield.”

Ether ETFs drew $689.88 million in weekly inflows, XRP products added $75.59 million, and Dogecoin funds received $2.89 million. However, Memeburn analysis shows Dogecoin ETF buying covered only about 0.3 times its new weekly supply, compared to roughly 9 times for Bitcoin and 12 times for Ether.

Bitcoin gained 43.88% in the third quarter of 2026 after declines of 22.2% in Q1 and 14.09% in Q2, marking its strongest quarter since 2024. The rally coincided with the US Treasury doubling long-dated debt buybacks to $4 billion per operation starting September 9, though 10-year yields climbed 81 basis points to multi-decade highs.

Finanzen.net reported Bitcoin surpassed $87,000 in September, reaching a multi-month high driven by institutional demand and a White House crypto summit. The outlet noted September spot crypto ETF inflows totaled $2.4 billion, the highest since October 2025, covering Bitcoin, Ethereum, Solana, and XRP products.