Wall St ends sharply lower, Treasury yield inversion widens after Powell remarks

NEW YORK, March 7 (Reuters) - U.S. stocks plummeted, the greenback jumped and the Treasury yield inversion hit its steepest mark in more than four decades on Tuesday as Federal Reserve Chairman Jerome Powell concluded the first day of his semi-annual, two-day monetary policy testimony before Congress.

All three major U.S. stock indexes lost more than 1% at the close of a broad risk-off session as investors digested Powell's prepared remarks, and his responses to questions from the Senate Banking Committee.

The dollar jumped, and the inversion between short- and long-dated Treasury yields eased and crude prices tanked as the testimony from the U.S. central bank chief reaffirmed the Fed's determination to bring inflation down to its 2% target rate.

"It's a pretty classic risk-off day," said Ross Mayfield, investment strategy analyst at Baird in Louisville, Kentucky. "The combination of (Powell) saying that the pace of rate hikes could accelerate and that the terminal rate would probably have to be adjusted upward was enough to send risk assets tumbling."

In his testimony, Powell confirmed that a recent spate of generally robust economic data, particularly in the labor market, along with stubbornly slow inflationary cool-down, increases the likelihood that the Fed will raise its policy rate more aggressively.

At last glance, financial markets have priced in a 70.5% chance of a 50 basis point increase to the federal funds target rate at the conclusion of the central bank's March meeting, according to CME's FedWatch tool.

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The Dow Jones Industrial Average (.DJI) fell 574.98 points, or 1.72%, to 32,856.46, the S&P 500 (.SPX) lost 62.05 points, or 1.53%, to 3,986.37 and the Nasdaq Composite (.IXIC) dropped 145.40 points, or 1.25%, to 11,530.33.

European shares extended their losses after Powell's prepared remarks fueled rate hike worries.

"The world is concerned that the Fed hikes rates so much and so long that the U.S. could head into recession," said Tim Ghriskey, senior portfolio strategist Ingalls & Snyder in New York.

The pan-European STOXX 600 index (.STOXX) lost 0.77% and MSCI's gauge of stocks across the globe (.MIWD00000PUS) shed 1.46%.

Emerging market stocks lost 0.87%. MSCI's broadest index of Asia-Pacific shares outside Japan (.MIAPJ0000PUS) closed 0.81% lower, while Japan's Nikkei (.N225) rose 0.25%.

Benchmark Treasury yields dipped after Powell's remarks, and the inversion between 2-year and 10-year Treasury yields, a harbinger of potential recession, steepened. It was last wider in 1981.

Benchmark 10-year notes last rose 4/32 in price to yield 3.9696%, from 3.983% late on Monday.

The 30-year bond last rose 18/32 in price to yield 3.8794%, from 3.912% late on Monday.

The greenback surged, hitting its highest level since early January against a basket of world currencies as Powell indicated the Fed could ramp up its efforts to rein in inflation.

The dollar index rose 1.21%, with the euro down 1.22% to $1.0548.

The Japanese yen weakened 0.88% versus the greenback at 137.16 per dollar, while sterling was last trading at $1.1825, down 1.63% on the day.

Oil prices extended their losses, falling more than 3% on the strengthening dollar and worries over dampening demand.

U.S. crude fell 3.58% to settle at $77.58 per barrel and Brent settled at $83.29, down 3.35% on the day.

Gold plunged in opposition to the rising dollar. Spot gold dropped 1.8% to $1,814.48 an ounce.

Reporting by Stephen Culp; Additional reporting by Amanda Cooper in London; Editing by Mark Potter, Will Dunham and Chizu Nomiyama

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