CoinDesk
US spot bitcoin ETFs posted a net $64 million outflow on Monday, while spot ETFs for Ether, XRP, Solana and Hyperliquid all recorded inflows. On the surface it reads as a clean rotation out of BTC and into altcoins — but the detail undercuts that narrative.
Why it matters
BlackRock's IBIT, the largest spot bitcoin ETF, actually took in $66 million on the day. The entire net loss came from Grayscale's GBTC, the high-fee legacy trust that has been shedding assets since the spot ETF market opened in January 2024. Strip GBTC out and bitcoin ETFs had an unremarkable session. The altcoin inflows were real but modest in scale: Ether funds gained $22.5 million, Hyperliquid funds $17.2 million, and XRP and Solana funds roughly $2.8 million each — against a bitcoin ETF complex that still holds approximately $83 billion in assets versus around $10 billion for Ether and about $1 billion each for the XRP, Solana and Hyperliquid products.
Market impact
Monday's price action aligned with the flows: XRP gained roughly 7%, Solana 6% and Hyperliquid 11%, while BTC lagged. The durability question is what matters next. If altcoin ETFs sustain inflows once GBTC's structural drag fades, the rotation thesis gains credibility. If inflows reverse once the altcoin momentum cools, Monday was a one-session story dressed up as a trend.
Frequently asked questions
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Why did bitcoin ETFs show an outflow if BlackRock's IBIT gained $66M on Monday?
The net $64M outflow came almost entirely from Grayscale's GBTC, a high-fee legacy trust that has been shedding assets since the spot ETF market launched. Excluding GBTC, bitcoin ETFs had an ordinary session.
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How significant are the altcoin ETF inflows compared to bitcoin ETF assets under management?
Bitcoin ETFs hold roughly $83 billion in assets. Ether ETFs hold about $10 billion, while XRP, Solana and Hyperliquid products each hold around $1 billion — making Monday's altcoin inflows meaningful in direction but small in absolute scale.
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What would confirm that Monday's altcoin ETF inflows represent a genuine rotation rather than a one-day move?
Sustained inflows into altcoin ETFs after GBTC's structural drag fades would support the rotation thesis. If inflows reverse once altcoin momentum cools, the move is more likely a single-session event than a durable trend.
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