Bank of America Corp. (NYSE:BAC) will allow more than 15,000 Merrill and Private Bank advisers to proactively recommend four spot Bitcoin (CRYPTO: BTC) ETFs starting Jan. 5, formally opening Bitcoin access across its wealth platform.Big Four Banks Now All Offer Bitcoin AccessBank of America joins JPMorgan Chase & Co. (NYSE:JPM) , Citigroup Inc. (NYSE:C) , and Morgan Stanley (NYSE:MS) in opening institutional Bitcoin access to wealth clients, marking the final holdout among the Big Four U.S. banks.JPMorgan h ...