Does anyone here have any idea what was going on back then on November 16 and 17? There was a sell signal at that time, wait for a good increase until I possibly short here. I only find something regarding Alzheimer's:

"Shares of Biogen Inc (BIIB) are down on Wednesday (16.11.2021) after the advisory committee of the European Medicines Agency recommended a 'negative trend vote' for the company's Alzheimer's therapy drug Aducanumab."

Merce you sweet.