By Ryan Vlastelica
NEW YORK (Reuters) - U.S. stocks dropped 1 percent in a broad decline on Wednesday, with materials and energy shares leading the way lower as commodity prices dropped, while a selloff in technology stocks pressured the Nasdaq index.
All but three of the S&P 500's 10 major sectors dropped more than 1 percent. About four-fifths of stocks traded on the New York Stock Exchange and Nasdaq were lower.
The CBOE Volatility index, a measure of investor anxiety, soared 28 percent, though action on the VIX was also influenced by the expiration of April futures contracts.
Mining and other materials companies sunk 2.4 percent while energy companies <.SPNY> were off 2.3 percent as U.S. crude futures dropped 2 percent to $86.99 a barrel. Brent crude is on pace for its sixth straight decline.
Financial stocks fell after Bank of America Corp
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"Banks are clearly struggling," said Jim McDonald, chief investment strategist at Chicago-based Northern Trust Global Investments, which has $760 billion in assets. "Loan growth has been disappointing, which points to economic growth not being robust."
The Dow Jones industrial average was down 154.82 points, or 1.05 percent, at 14,601.96. The Standard & Poor's 500 Index was down 23.68 points, or 1.50 percent, at 1,550.89. The Nasdaq Composite Index was down 60.15 points, or 1.84 percent, at 3,204.48.
The S&P information technology sector fell 2.1 percent as Apple Inc
Intel Corp
Oil prices dropped on the prospect of sluggish fuel demand in the United States and China, a sign that economic growth was weak. Crude is down about 10 percent so far this year. Among the most active energy companies, Valero Energy
Markets have been volatile this week, with the S&P moving more than 1 percent in each session, putting the VIX on track for its biggest weekly jump since May 2010. While the index is down 2.6 percent on the week, it posted its second-best daily performance of the year on Tuesday.
Yahoo Inc
Textron Inc
On the upside, Mattel Inc
With 9 percent of the S&P 500 having reported, 67 percent have beaten earnings expectations, even with the average over the past four quarters, but above the average of 63 percent since 1994.
S&P 500 earnings are now expected to have risen 1.7 percent in the first quarter, based on actual results from 42 companies and estimates for the rest, according to Thomson Reuters data. That expectation is up from a previous estimate of 1.5 percent growth at the start of the month. At the start of the year analysts saw earnings growing 4.3 percent.
Other S&P 500 companies expected to report on Wednesday include American Express Co
The Federal Reserve is expected to release its Beige Book describing economic conditions at 2 p.m. (1600 GMT).
(Editing by Kenneth Barry)