US Crypto ETFs Pull Over $3 Billion in One Week, Nearly $800 Million Outside Bitcoin

US spot cryptocurrency exchange‑traded funds (ETFs) attracted more than $3 billion in net inflows over a four‑day period, extending a multi‑day rally in demand that spread beyond Bitcoin into Ethereum and several altcoin products.

Bitcoin Leads the Inflow Surge

Bitcoin spot ETFs received $2.25 billion of the week’s total inflows. The week opened with a $999 million inflow – the largest daily net addition in 2026 and the biggest since a $1.2 billion surge on 6 Oct 2025. That single‑day flow represented roughly 11,530 BTC, the highest coin‑term intake since Nov 2024. Inflows remained positive on the fourth day, adding $190.65 million and bringing the four‑day total to $2.25 billion.

Ethereum Captures the Bulk of Non‑Bitcoin Demand

Ethereum spot ETFs recorded $602.94 million in inflows across the same period, accounting for more than three‑quarters of all capital moving into non‑Bitcoin products. Daily inflows were $269.98 million on Monday, $162.31 million on Tuesday, $104.63 million on Wednesday and $66.01 million on Thursday. By 24 Sept, cumulative net inflows into the 11 tracked Ethereum ETFs reached $13.85 billion, with total net assets of $17.70 billion.

Altcoin ETFs See Modest but Growing Interest

Solana, XRP and Zcash ETFs together attracted about $189.7 million. Solana products added $101.55 million, XRP ETFs $52.95 million, and Zcash ETFs $35.17 million. These inflows lifted Solana’s cumulative net assets to $1.81 billion, XRP’s to roughly $1.70 billion, and Zcash’s to about $1 billion.

Market Context

The broader crypto market showed strength during the same window, with non‑Bitcoin pairs on Bitfinex posting a median gain of 12 % versus Bitcoin’s 6.6 % rise. An altcoin‑season indicator turned positive on 22 Sept, the first positive reading since Jan 2024.

Key Metrics

• Total net inflows (Monday‑Thursday): ~ $3.04 billion
• Bitcoin inflows: $2.25 billion
• Ethereum inflows: $602.94 million
• Solana, XRP, Zcash combined inflows: $189.7 million
• 12 US Bitcoin spot ETFs hold $108.92 billion in net assets (as of 24 Sept)
• Cumulative net inflows into Bitcoin ETFs YTD: $57.43 billion