https://www.reuters.com/article/fintech-crypto-bitcoin/bitcoin-hovers-below-peak-doubts-linger-over-boost-from-u-s-etf-idUSKBN2HB09D >LONDON/HONG KONG (Reuters) -Bitcoin hovered on Thursday below its all-time high struck a day earlier after the launch of the first U.S. bitcoin futures exchange-traded fund, though J.P. Morgan analysts voiced doubt over its impact on cryptocurrency investment flows.