Markets

Dow tumbles 700 points for its worst drop since October as investors fear a Covid resurgence

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U.S. stocks fell aggressively Monday on concern a rebound in Covid cases would slow global economic growth. The selling picked up as the session went on, and the Dow Jones Industrial Average had its worst day since last October.

Stocks drop amid Delta variant concerns slowing economy — Here's what experts are saying
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What experts are saying as stocks drop amid Delta variant concerns

The Dow dropped 725.81 points, or 2.1%, to 33,962.04 in a broad-based rout that sent all 30 members lower. At one point during the session, the Dow was down 946 points before recovering some ground into the close.

The S&P 500 fell 1.6% to 4,258.49. Energy, financials and industrials were the worst-performing sectors.

The tech-dominated Nasdaq Composite slid 1.1% to 14,274.98, posting its fifth-straight day of losses and worst losing streak since October.

The 10-year Treasury yield reached a five-month low of 1.17%, exacerbating fears about the slowing economy. The small-cap Russell 2000 dropped 1.5% and briefly dipped into correction territory on an intraday basis - down more than 10% from its March high.

"You have two concerns coming together ... concerns about market technicals and concerns about growth," Allianz chief economic advisor Mohamed El-Erian told CNBC's "Squawk Box" on Monday. "That's what all the asset classes are telling you."

Covid cases have rebounded in the U.S. this month, with the delta variant spreading among the unvaccinated. The U.S. is averaging nearly 26,000 new cases a day in the last seven days through Sunday, up from a seven-day average of around 11,000 cases a day a month ago, according to CDC data. Cases were already flaring up around the world because of the delta variant.

The Cboe Volatility Index surged as high as 25 amid the broad market sell-off, its highest level since May. The so-called fear gauge looks at prices of options on the S&P 500 to track the level of fear on Wall Street.

Airlines got hit as investors reassessed whether travel among consumers would live up to high expectations, with shares of Delta and American sinking about 4% each. United lost 5%.

Key stocks linked to global economic growth also fell. Boeing shed 5%, and General Motors and Caterpillar dropped about 2% each.

"The market appears ready to take on a more defensive character as we experience a meaningful deceleration in earnings and economic growth," Morgan Stanley chief U.S. equity strategist Mike Wilson said in a note Monday. "Market breadth has been deteriorating for months and is just another confirmation of the mid-cycle transition, in our view. It usually ends with a material (10-20%) index level correction."

Wilson advised clients to buy staples such as Mondelez International to weather the decline.

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Why Jim Cramer says it isn't the end of the bull market

Oil prices fell on fears of slowing growth and as OPEC+ agreed to begin phasing out production cuts. Energy stocks were among the worst performers, with with ConocoPhillips off by more than 3%. Exxon Mobil also lost 3%. WTI crude shed 7.5% to settle at $66.42 a barrel. The Energy Select Sector SPDR lost 4% for the worst performance among the 11 sectors.

The Financial Select Sector SPDR was the second-worst performer, down 2.8% as falling yields crimped the profitability outlook for banks. JPMorgan dropped 3.2%, and Bank of America fell 2.6%.

Market breadth was extremely poor with advancers beating decliners on the NYSE by nearly 5-1. Big Tech shares were not immune to the sell-off, with Apple and Alphabet each down about 2%.

Despite Monday's decline, the overall damage to the market remains tame. The S&P 500 is still just 3.1% below its record reached last week and investors are hoping more better-than-expected earnings results will put a bottom under the market.

Billionaire investor Bill Ackman said Monday the spread of the delta variant doesn't pose a significant threat to the economic reopening as it could speed the pace to herd immunity.

"I hope what it does is that it motivates anyone who doesn't get the vaccine to get the vaccine. I don't think it's going to change behavior to a great extent," Ackman said on "Squawk Box." "You are going to see a massive, my view, economic boom. ... We are going to have an extremely strong economy coming in the fall."

— CNBC's Yun Li, Jeff Cox and Michael Bloom contributed reporting

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