Delta Air Lines (DAL) lagged the S&P 500 Tuesday after reporting a steep decline in passenger unit revenue in May. Profits have been cut by currency exchange headwinds and lower surcharges. Boeing (BA) led the Dow after announcing it has started factory assembly of its first 737 jetliner on schedule. Stocks were unable to hold onto slight gains through to market close. Markets fell as a surge in bond yields triggered a selloff among utilities that cancelled out a rally in the energy sector. Intel (INTC) was the worst Dow performer after BMO Capital argued the company had paid too much in its pending acquisition of Altera (ALTR).