U.S. spot Bitcoin ETFs pulled in nearly $2.5 billion over the past month, reversing almost all year-to-date outflows despite Bitcoin trading 40% below its October 2025 peak of $126,080.

March saw nine days with inflows exceeding $150 million, including a single-day surge of $458.19 million on March 2 and consecutive $200 million days on March 16 and 17.

BlackRock’s IBIT ETF has already turned positive for the year, ranking in the top 2% of all U.S. ETFs by year-to-date flows. Analyst Eric Balchunas called the resilience “incredible fortitude” amid widespread market skepticism.

Markus Levin, co-founder of DePIN project XYO, described the trend as a “structural bid” returning to Bitcoin ETFs, with nearly $2.8 billion in net inflows by mid-March neutralizing earlier outflows.

ETFs now account for 37% of total U.S. stock market volume-the highest monthly average on record-up 13 percentage points since early 2025. Institutional investors are increasingly using ETFs to hedge or reposition amid rising volatility.

Analysts say Bitcoin is now trading as a “forward-looking liquidity asset,” decoupled from short-term macro noise. Andri Fauzan Adziima of Bitrue noted institutions are rotating capital from gold ETFs into Bitcoin ETFs, treating Bitcoin as a core portfolio diversifier.

Additional catalysts loom: Strategy filed plans to acquire $44 billion worth of Bitcoin, and Morgan Stanley’s Bitcoin ETF nears launch. With fewer than 1 million BTC left to mine over the next century, supply constraints could amplify future demand shocks.