Opening Bell: Stocks Dip on Inflation Data, Einhorn Raises Apple Stake

U.S. stocks opened lower on Tuesday, following an uptick in consumer prices in April. The consumer price index rose 0.4 percent during the month, beating expectations of a 0.3 percent increase. Core CPI gained 2.1 percent year-over-year. Home Depot (HD) - Get Report reported better than expected first quarter results that eclipsed estimates on both the top and bottom lines. Comparable store sales rose 6.5 percent and the company also raised its outlook for the year. Finally, hedge fund manager David Einhorn, founder of Greenlight Capital, upped his holdings in Apple (AAPL) - Get Report by 1.9 million shares during first quarter, raising the fund's total stake to 8.2 million shares. TheStreet's Scott Gamm reports from Wall Street.