Stocks Slump, Big Banks Report, Airlines Aid, Abbott Antibody Test

<p>Carl Quintanilla, Jim Cramer and David Faber discuss the slump for stocks as the big banks report results. Citigroup, Bank of America and Goldman Sachs all reporting this morning. Profit at all three tumbling over 44%. The big four U.S. airlines, Delta, American, JetBlue and Southwest reaching a deal with the Treasury Department for portions of $25 billion in payroll grants to help weather the coronavirus. Abbott Labs announcing a new antibody test that could handle up to 20 million screenings in June.</p>