Stocks open lower on Wall Street as poor quarterly results pull down Cisco and tech stocks

KEEPING SCORE: The S&P 500 index rose 1 point to 2,723 as of 10:14 a.m. Eastern time. The Dow Jones industrial average edged down 4 points to 24,764. The Nasdaq composite lost 3 points to 7,393. Two stocks rose for every one that fell on the New York Stock Exchange.