NEW YORK -- Poor corporate earnings reports pounded the stock market Friday in a sour end to an otherwise strong week of trading. The Dow Jones industrial average fell more than 200 points for its worst day in four months.
Disappointing results from three giants of the Dow -- Microsoft, General Electric and McDonald's -- were to blame. But the broader market fell, too, and the Standard & Poor's 500 index fared even worse in percentage terms.
The Dow sank 205.43 points, or 1.5 percent, to close at 13,343.51. The S&P lost 24.15, or 1.7 percent, to 1,433.19. The Nasdaq composite index, hammered by a second ugly day for Google, lost 67.25 points to 3,005.62, a 2.2 percent decline.
The big drops Friday left the Dow and S&P clinging to gains for the week.
Financial analysts expect corporate earnings for July through September to be lower than the same period a year ago, which would be the first yearly decline in three years.
Through Thursday, with 115 companies in the S&P 500 reporting, earnings were down 3.7 percent compared with a year earlier, according to Thom-son Reuters, a financial data provider, and ING, a financial company.
"And once you get one quarter of negative earnings, it's a precursor," said Doug Cote, chief market strategist at ING Investment Management in New York. "It's the cockroach theory: If you find one, there's probably many more.
All 10 industry groups in the S&P 500 fell, led by technology and materials stocks. For a time Home Depot and Bank of America were the only stocks in the Dow trading higher for the day, but by 3 p.m. they were lower, too.
Google continued its slump, losing $13.21 to $681.79, a day after its earnings report was accidently hours ahead of schedule. The report raised questions for Google and other Internet companies about ads that target mobile devices.
It's been a tough week for technology companies. IBM pointed to Europe's troubles and slowing business spending when it posted weaker revenue than analysts expected. Intel, the world's largest maker of computer chips, blamed the global economy and sliding computer sales for pushing net income down.
The bad news piled up Friday. Sagging PC sales and trouble in Europe took a toll on Microsoft's net income. Its stock lost 86 cents, or 3 percent, to $28.64. Marvell Technology Group and Advanced Micro Devices, which also make chips, sank sharply.
McDonald's profit shrank as a strong dollar hurt international results, which account for two-thirds of its business. The fast-food giant's stock lost $4.14, more than 4 percent, to $88.72.
General Electric, a bellwether of the economy, fell 3 percent. The company reported stronger profits early Friday, but its revenue missed Wall Street's expectations.
Orders for new equipment and services sank, mainly because wind turbine orders have fallen because a key U.S. federal subsidy for wind power expires at the end of the year. GE's stock lost 78 cents to $22.03.
As corporate earnings roll in, banks and so-called consumer discretionary companies, which include luxury stores and hotels, are projected to report the best growth.
Analysts expect companies dealing in metals and other materials to report the worst results, followed by energy companies. But it's technology companies like IBM, Intel and Google whose results have grabbed the most attention.