The largest U.S. banks are expected to report bigger fourth quarter profits next week, fueled by a surge in investment banking revenue as dealmaking accelerates. The largest U.S. lender, JPMorgan Chase, will kick off earnings season for banks on Jan. 13. Citigroup, Bank of America and Wells Fargo will report on Jan. 14, and Goldman Sachs and Morgan Stanley on Jan. 15. Their results are likely to be bolstered by a revival in mergers and acquisitions.