The largest crypto by market capitalization ran to as high as $47,699, the highest since the bitcoin ETF launch day, before it buckled to $46,700 in a swift sell-off. Soon after, prices quickly rebounded slightly over $47,000. At press time, BTC was up 4.5% over the past 24 hours, outperforming the CoinDesk 20 Index (CD20), a measure of the biggest cryptocurrencies, which advanced 3.8%.