US-listed Bitcoin (BTC) and Ethereum (ETH) exchange-traded funds each recorded their largest week since October 2025, drawing a combined $2.6 billion in the seven days ended August 21.
Bitcoin products captured $1.92 billion of that sum. Ethereum funds added $697.18 million, reversing a $391.96 million combined outflow the previous week.
Bitcoin and Ethereum ETFs Hit Biggest Weekly Inflow in 10 Months
According to SoSoValue, Bitcoin funds recorded five consecutive days of net inflows from August 17 to August 21. The run included a $606 million single-day haul on August 20.
Trading activity climbed alongside the money. Weekly volume in BTC funds reached $22.15 billion, roughly triple the prior week’s total.
The week interrupts a long retreat. Cumulative net inflows into Bitcoin ETFs peaked at $62.77 billion in October 2025 and have since fallen to $53.71 billion.
Ethereum funds followed a similar path. Their largest daily intake since October landed on August 20 at $220.77 million. Total assets, however, remain 53% below the August 2025 high.
The annual picture stays negative for both. BTC funds have shed $2.91 billion in 2026 and ETH products $177.93 million, leaving each on track for its first losing year since launch.
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Assets Grew 9 Times More Than New Money
The flow figures understate what actually moved. Combined assets across both products rose by about $23 billion last week, compared with $2.6 billion in creations.
Stripping out flows, the implied gain in the underlying holdings reached 22.9% for Bitcoin and 29.2% for Ethereum. Three sessions from August 19 to August 21 produced most of it.
Revaluation, therefore, did the heavy lifting. Bitcoin traded near $77,125 at press time, while Ethereum changed hands at $2,423.
Altcoin Funds Extend the Run
Other major US altcoin spot ETFs also posted net inflows over the same week. XRP (XRP) ETFs led with $39.78 million and set a record for weekly trading volume at $271.74 million.
Solana (SOL) products followed with $28.34 million, marking an eighth consecutive week of inflows. Chainlink (LINK) funds drew $13.35 million, their second-largest week since launching in December. Assets closed at a record $171.59 million.
Hyperliquid (HYPE) products added $3.89 million and also finished at record assets of $360.39 million. Dogecoin (DOGE) funds trailed the group with $654,416.
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Source: BeInCrypto
