Hundreds of funds have put money into publicly traded firms that have Bitcoin on their books. Since dabbling in cryptocurrency, BlackRock recently profited $360,457. Nine mutual funds are invested in crypto mining securities and companies that have crypto mining companies on their balance sheets. BLOK has gained 71.7 percent since the beginning of the year, making it one of the best-performing ETFs in 2021. The fund's investments are described as focusing on "transformational data sharing technologies."