The (iShares Bitcoin Trust) managed by BlackRock has become the largest cryptocurrency fund in the world after raising assets totaling approximately $20 billion since its listing in the United States at the beginning of this year. According to Bloomberg, "the assets under the exchange-traded fund reached $19.68 billion on Tuesday, surpassing the (Grayscale Bitcoin Trust), which has assets of about $19.65 billion." The Securities and Exchange Commission, led by Gary Gensler, who is skeptical of cryptocurrencies, had rejected investment funds focused on Bitcoin for over a decade due to concerns about market manipulation, before approving them in January after (Grayscale Investments) won a court ruling last year.