The Hashdex conversion comes over two months after the original ten spot bitcoin ETFs started trading on Jan 11. Excluding Grayscale’s GBTC (which entered the spot era with nearly $30 billion in AUM), BlackRock’s IBIT and Fidelity’s FBTC are leading the way in asset gathering, with each having more than $10 billion in assets under management. WisdomTree’s BTCW is the smallest of the entrants, with 1,126 bitcoins and just shy of $80 million in AUM.