Why Didn't Pfizer and BioNTech Stocks Soar After Their COVID Vaccine Achieved 100% Efficacy in Kids?

Why Didn't Pfizer and BioNTech Stocks Soar After Their COVID Vaccine Achieved 100% Efficacy in Kids?

Motley Fool

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There are several potential reasons why investors didn't cheer the companies' great news more loudly.

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