Bruce Bennett/Getty Images News Bank of America (BAC), the U.S.'s second-largest bank, will allow trading of bitcoin (BTC-USD) futures for some of its clients, Coindesk reports, citing two people with knowledge of the matter. Some clients are setting up to trade the futures and one or two may have already started, one source told Coindesk. That's following other large financial institutions that are allowing wealthy clients to invest in cryptocurrencies due to strong interest in the digital assets. Last month, Citigroup launched a Digital Asset Group within its Wealth Management division and in May, Goldman formed a crypto trading desk. In March, Morgan Stanley said cryptocurrency was nearing its investable asset class threshold.