Dow drops more than 400 points as Wall Street starts second quarter on a sour note

- The Dow Jones Industrial Average fell for the second day in a row, dropping 425 points or 1.1%. - The S&P 500 slid 0.9%, and the Nasdaq Composite shed 1.2%. - Traders are reducing expectations that the Federal Reserve will cut interest rates in June. - Bond yields increased, contributing to Wall Street's lackluster start to the quarter.