NEW YORK — Stocks that moved heavily or traded substantially Monday:
Pfizer Inc., up $2.80 to $39.20.
The pharmaceutical company said an early peek at its vaccine data suggests it may be 90% effective at preventing COVID-19.
Biogen Inc., down $92.64 to $236.26.
The biotechnology company's potential Alzheimer's drug received a harsh review from a Food and Drug Administration advisory panel.
McDonald's Corp., down $3.34 to $213.22.
The burger chain's U.S. sales roared back in the third quarter and profit beat Wall Street forecasts.
W.R. Grace & Co., up $11.94 to $55.99.