US Bitcoin ETFs and MicroStrategy Fuel $1.7 Billion Weekly BTC Accumulation Wave

In the first days of March 2026, US spot Bitcoin ETFs and MicroStrategy together absorbed more than $1.7 billion worth of BTC, with ETFs alone seeing $1.1 billion in net inflows over three trading sessions and MicroStrategy adding 3,015 BTC for about $155 million. Bitcoin has climbed roughly 8.5% to around $71,000, while traders now focus on the key $64,000 resistance and a critical support zone between $50,000 and $55,000 as institutional demand outpaces new supply.