Q: I am puzzled by the sudden rise in AMGN share price today. The only news I see is from a week ago, that the FDA completed a report on the Lung Cancer drug Lumakras, voting *against* full approval. The drug was conditionally approved in May 2021, and I believe the condition was that Amgen had to complete a comparative trial, showing it was more effective than other treatments like chemotherapy, in order to receive full approval. But it sounds like their trial failed due to dropouts from their "other treatment" group.
Why would this "rejection" result in a sudden rise in share price? Or is it due to something else, like a broker upgrade?
Why would this "rejection" result in a sudden rise in share price? Or is it due to something else, like a broker upgrade?