That was a trial. Trial sometimes meet primary endpoints sometimes not. In this case it failed. Unless there are leaks before the read out (which did not seem to occur this time looking at the relatively small trading volumes in the last couple of days) you cannot infer anything about the trial results by simply looking at charts. I have seen many examples of shares rising dramatically before the top line results and then missing endpoints. I have also seen a lot of stock on a downtrend , meeting primary endpoints. Next time I will flip a coin and I will tell you to sell or buy based on that. I will have 50% probability to be right.
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