He has a point... it will probably drop.
Based on the history since the big awakening I think it is reasonable that this will drop tomorrow. it will come back up over time.and it will be a great stock in the long run. So hold your position with confidence or average down from time to time with some assurance but don't fret over the jerks who just want to bad mouth it. Oh, and again, no evidence the vaccine prevents asymtomatic transmission so there is that.