Bank of America Corp., the biggest U.S. lender, expects to recoup a “substantial majority” of the fee revenue lost due to new financial industry rules and will reposition its proprietary trading unit, Chief Executive Officer Brian T. Moynihan said today. The bank will raise balance minimums and charge monthly account fees, while offering a less-expensive account to customers who use only online and automated teller services, Moynihan told investors today during a Barclays Capital conference in New York. He didn’t specify changes in the proprietary trading unit, which he described as small. Moynihan on July 16 said new U.S. curbs on the financial industry, designed to prevent another financial crisis and protect consumers, may prompt a $10 billion charge and trim annual revenue by $2.3 billion, more than some of the most pessimistic estimates. The package also prohibits banks from risking capital by betting for their own accounts.