BTC ETFs log $664M inflows on ceasefire

TLDR

US spot Bitcoin ETFs saw about $664 million of net inflows in a day as a temporary ceasefire around the Strait of Hormuz briefly eased energy and inflation fears.

1. Spot Bitcoin ETFs logged roughly $664 million of daily net inflows, one of the biggest since January, lifting total Bitcoin ETF assets back above $100 billion.
2. The inflows came as a ceasefire allowed a brief reopening of the Strait of Hormuz, reducing oil shock risk and helping Bitcoin push above $77,000 alongside broader risk-on markets.
3. The truce is fragile and time?limited, and analysts say ETF flows show participation but not full conviction, so a breakdown in the ceasefire could quickly stall or reverse this support.

Deep Dive

1. How Large The ETF Flows Were

Reports show US spot Bitcoin ETFs pulled in about $664 million of net inflows in a single session, described as the largest daily intake since January and part of nearly $1 billion of weekly inflows.[\[1\]](https://cryptoslate.com/bitcoin-etfs-pull-in-664-million-after-strait-of-hormuz-reopened/)

Across four straight positive days, Bitcoin ETF net inflows reached around $1.28 billion, with funds like BlackRocks IBIT, Fidelitys FBTC, and ARK 21Shares ARKB leading subscriptions.[\[2\]](https://news.bitcoin.com/bitcoin-etfs-add-664-million-as-assets-top-100-billion-again)

These flows pushed total net assets in US Bitcoin ETFs back above about $101 billion, representing roughly 6 to 7 percent of Bitcoins market capitalization by some estimates.[\[3\]](https://tokenpost.com/news/insights/19898)

2. Why The Ceasefire Mattered For BTC

The inflows coincided with Iran temporarily reopening the Strait of Hormuz under a ceasefire, which eased fears of an extended energy shock and helped push Bitcoin above $77,000 while Brent crude fell about 10 percent.[\[4\]](https://cointelegraph.com/news/spot-bitcoin-etfs-1b-weekly-inflows-risk-sentiment)

Coverage explicitly links the $664 million ETF spike to the brief Hormuz reopening, framing it as a classic risk?on move where reduced geopolitical and oil price risk encourages flows into Bitcoin and other assets.[\[1\]](https://cryptoslate.com/bitcoin-etfs-pull-in-664-million-after-strait-of-hormuz-reopened/)

Ethereum and Solana spot ETFs also saw solid net inflows, suggesting institutions were adding broad crypto exposure rather than just a single BTC trade.[\[3\]](https://tokenpost.com/news/insights/19898)

3. Fragility And What To Watch Next

The reopening of Hormuz was brief, with reports noting only eight tankers passed before conditions tightened again and a four?day ceasefire deadline left markets wary of renewed disruption.[\[1\]](https://cryptoslate.com/bitcoin-etfs-pull-in-664-million-after-strait-of-hormuz-reopened/)

Analysts characterize the pattern as participation without urgency, with strong but not yet runaway ETF demand, meaning a sustained BTC breakout likely requires continued inflows rather than a one?day spike.[\[1\]](https://cryptoslate.com/bitcoin-etfs-pull-in-664-million-after-strait-of-hormuz-reopened/)

Key things to monitor now are whether the ceasefire holds, oil and dollar behavior, and whether daily ETF flows stay positive or flip back to mixed or negative.

Conclusion

A roughly $664 million single?day surge into US spot Bitcoin ETFs shows how sensitive institutional demand is to macro de?escalation, in this case a temporary ceasefire that briefly reopened a key oil chokepoint.

The move reinforces Bitcoins role in global risk rotation, but with the ceasefire and inflows both still fragile, the next phase depends on whether geopolitical and rate fears stay contained enough for capital to keep favoring BTC over traditional havens.