Institutional Crypto ETF Inflows Surge Led by Bitcoin and Ethereum

TLDR: ETF inflows soared 149% to $242M from March 10 to March 11. Bitcoin accumulation reached 3,610 BTC, absorbing nearly eight days of mined supply. Ethereum reversed prior outflows with $12.6M in inflows on March 11. Altcoins showed selective institutional interest, with several ETFs reporting no flows. U.S. Spot Crypto ETF flows from March 10 to March 11 show rising institutional participation, led by Bitcoin. Ethereum reversed previous outflows, while altcoins remained selective, highlighting shifting strategies and growing confidence among major investors in the crypto market. Institutional Momentum and Bitcoin Dominance U.S. Spot Crypto ETF flows indicate a clear acceleration in institutional participation across two days. On March 10, inflows reached $97.19 million, representing steady but measured buying. By March 11, inflows surged to $242.05 million, marking a 149% increase in capital entering the market. Bitcoin led these flows on both days, reflecting its continued dominance in institutional portfolios. On March 10, ETFs added 2,530 BTC, equivalent to $167.1 million. \ On March 11, accumulation increased to 3,610 BTC, or $246.9 million, a 42% day-over-day rise. These purchases absorbed nearly eight days of newly mined Bitcoin supply, compared with six days previously. ETF FLOWS: US SPOT CRYPTO ETFs FLOWS DATA UPDATE (10-03-2026): Bitcoin ETFs: +3,610 $BTC (+$246.90M) Ethereum ETFs: +6,325 $ETH (+$12.60M) XRP ETFs: -13.29M $XRP (-$18.11M) Hedera ETFs: +6.82M $HBAR (+$655.15K) $DOGE, $LTC, $AVAX, $DOT, $LINK Flows Was Zero.… https://t.co/nNdfs8z3vt pic.twitter.com/41SO5S6BKZ — Crypto Patel (@CryptoPatel) March 11, 2026 Major asset managers drove these flows. BlackRock increased purchases from 1,660 BTC to 2,720 BTC, while Fidelity maintained steady accumulation. ETF demand at this scale compresses available supply, often contributing to market stability and supporting upward momentum. Bitcoin’s role as the primary institutional gateway remains central,...