Novavax’s 3,500% Surge on a Covid-19 Vaccine Faces First Test

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Three potential Covid-19 vaccines are seen at Novavax labs in Rockville, Maryland, on March 20.

Photographer: Andrew Caballero-Reynolds/AFP via Getty Images

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Novavax Inc.’s Covid-19 vaccine results are expected imminently and scientists will be scanning the data to gauge the shot’s promise. At the same time, day traders -- who’ve snapped up shares since March -- will be looking for the more than $7 billion surge in value to hold.

Vaccine candidates presented so far have detailed initial patient antibody and T-cell responses and compared them with levels seen in patients who have recovered from the virus. Investors will be looking for those initial immune-system responses when Novavax reveals its data, likely sometime next week.