Bitcoin topped $63,000, gaining over 5%, closing out its best month since December 2020. Ether also rose over 6% to $3,483, extending large February gains. Bitcoin is up 47% and ether 51% for the month. Record inflows to bitcoin ETFs, now over $2 billion total, have driven up demand. The upcoming bitcoin halving in April also adds to bullish sentiment historically. Prices surged despite earlier outflows from the Grayscale Bitcoin Trust.