In a significant development in the cryptocurrency market, BlackRock's iShares Bitcoin Trust (IBIT) has overtaken Grayscale's Bitcoin Trust (GBTC) as the largest Bitcoin ETF by assets. Over the past two weeks, US Bitcoin ETFs have seen over $2 billion in inflows, with a record $1 billion last week alone. Thursday saw the biggest daily haul at $305 million. BlackRock's IBIT led the surge with $720 million, followed by Fidelity's $FBTC at $227 million. On May 27, nine ETFs added 3,028 BTC worth $211.8 million. On May 28, BlackRock added 1,505 BTC worth $102 million, bringing its total holdings to 288,000 BTC. This influx has pushed IBIT's assets to $19.68 billion, surpassing GBTC's $19.65 billion. Additionally, US Bitcoin ETFs have experienced 11 consecutive days of net inflows, highlighting growing institutional interest. Meanwhile, Grayscale's GBTC saw outflows of $105 million on May 28. The price of Bitcoin has surged above $70,000, reflecting positive market sentiment.