Bitcoin and Ether ETFs Attract $2.6 B in Strongest Weekly Inflows Since October

U.S. spot Bitcoin exchange‑traded funds (ETFs) saw a surge of $1.92 billion in net inflows over the five‑day period from August 17 to August 21, while Ether‑linked ETFs attracted $697 million. The combined $2.62 billion inflow represents the strongest weekly performance for crypto ETFs since October 2025.

Bitcoin ETF inflows and trading activity

Daily inflows grew from $297.56 million on Monday to a peak of $606.29 million on Thursday, ending the week with $307.45 million on Friday. BlackRock’s IBIT fund led the category with $1.33 billion in net inflows, followed by Fidelity’s FBTC ($293.1 million) and ARK 21Shares’ ARKB ($126.9 million). Total trading volume for Bitcoin ETFs reached $22.1 billion, more than triple the prior week’s $6.9 billion. Assets under management rose 25 % to $96.07 billion.

Ether and other alt‑coin ETFs gain traction

Ether ETFs posted consistent gains each day, ending the week with $697 million in inflows. Daily totals rose from $30.85 million on Monday to $220.77 million on Thursday, with a final $184.93 million on Friday. XRP‑linked ETFs added $39.78 million, Solana funds contributed $28.34 million, and HYPE‑related ETFs recorded $3.89 million in net inflows.

Proportional demand highlights

Analysts noted that Ether’s $697 million inflow represented roughly 4.9 % of its $14.29 billion asset base, compared with Bitcoin’s 2.0 % share of its $96.07 billion holdings, indicating stronger relative demand for Ether.