NEW YORK: Wall Street stocks were mixed early Wednesday despite big gains by Boeing and Pfizer as the market weighs rising coronavirus cases and lofty equity valuations.Boeing won US government approval to return its 737 MAX to the skies after two deadly crashes, while Pfizer said it planned to apply for emergency use authorization of a coronavirus vaccine "within days" following clinical trials.The S&P 500 was flipping between small gains and losses after Pfizer and BioNTech reported updated data suggesting its potential COVID-19 vaccine may be 95% effective.
The companies said they plan to ask U.S. regulators within days to allow emergency use of the vaccine.The benchmark index was 0.1% lower, as of 9:55 a.m.