Investmentsentscheidung🆘️

Dear All, I need your opinion on the following biopharma stocks. $BNTX (-8,67 %) , $MRNA (-6,41 %) , $AZN (+0,4 %) . I have already bought some parts in Bion Tech against € 131,-, now the price stagnates between €156,- ~ €162,-. Somehow I think that this share still has a chance to perform until the end of the year, because the vaccine has just been approved in China. Besides, the situation is even worse now in China. What is your opinion on this? For the other two stocks, unfortunately I don't have any important recent updates, maybe someone here? Looking forward to your feedback, thank you very much!