Worries continue to hurt Wall St.

Stocks closed broadly lower on Wall Street Friday following another choppy day of trading as worries about the worsening pandemic undercut growing optimism about a coming corona virus vaccine.

The S& P 500 fell 0.7%, erasing i ts gains from a day earlier. The benchmark index, which climbed to an all- ti me high on Monday, posted i ts first weekly decline after two weeks of gains. The index is still up 8.8% so far this month.

Technology, financial and industrial companies drove much of the selling, which turned volatile in the final hour of regular trading. Treasury yields were mostly lower, a sign of caution in the market. Stock indexes around the world made modest moves.

Traders are balancing cautious optimism that a working coronavirus vaccine will be widely distributed next year against jitters over surging virus cases and the economic impact of new restrictions being put in place across the U.S. on people and businesses to limit the spread.

“It' s a market concerned about growth,” said Quincy Kr os by, chief market strategist at Prudential Financial. “That's the big uncertainty.”

The S&P 500 fell 24.33 points to 3,557.54. The Dow Jones Industrial Averages lid 219.75 points, or 0.7%, to 29,263.48. The Nasdaq composite gave up an early gain and dropped 49.74 points, or 0.4%, to 11,854.97.

Small company stocks held up better than the rest of the market. The Russell 2000 small-cap index rose 1.21 points, or 0.1%, to 1,785.34.

Wall Street suddenly began to teeter-totter this week after a big November rally swept both the S& P 500 and Dow to record highs. Evidence is piling up for investors both for hope about the economy' s prospects next year and for fear about the damage accruing in the shorter term.

Adding to the op timistic side of the ledger Friday was Pfizer and BioNTech saying they'll submit an application with U.S. regulators for emergency use of their vaccine candidate. Data suggests it may be 95% effective at preventing mild to severe COVID19 disease.

If approved, a limited number of doses could begin being ad min iste red as early as next month, though widescale vaccinations likely wouldn't happen until after a potentially brutal winter. Other vaccines are also under development, and the hope is that one or more could get the economy running closer to normal next year.

On the pessimistic side, more governments around the world are bringing back restrictions on daily life to slow the spread of the virus. S urging corona virus counts and hospitalizations also threaten to frighten consumers enough to keep them hunkered at home and drag on the economy.

“The market is supposed to be forwardlooking, but the reality is it's hard to look past what's been going on the past couple of weeks,” said J. J. Kinahan, chief strategist with TD Ameritrade. “The other thing that's a major concern is people going into lockdowns in major parts of the country. What is that going to be for businesses?”

California' s gov ernor announced late Thursday an overnight curfew on most residents in the state, the Centers for Disease Control and Prevention is asking Americans not to travel for Thanksgiving and authorities from Lisbon to Sri Lanka announced varying degrees of restrictions.

“On the road to the other si de of t he pandemic are detours and we' re in one of those detours,” Krosby said.

The U.S. Treasury Department also said late Thursday that it will not extend several emergency loan programs setup with the Federal Reserve during the worst of the