Three major financial institutions—U.S. banking giant Citigroup, U.K.'s Standard Chartered, and U.S. investment bank Bernstein—have lowered their target prices for the cryptocurrency Bitcoin (BTC) since the beginning of the year. Standard Chartered's year-end target has been reduced from $150,000 to $100,000, Bernstein's from $150,000 to approximately $125,000, and Citi's target has been adjusted from $143,000 at the start of the year to $113,000 for the next 12 months. Analyst Shah (sh...