Evercore ISI analysts on the Nov 9 shift from growth stocks to value stocks after Pfizer announced a Covid vaccine

In a sign of the potential of a post-COVID rotation, [Monday] was the biggest single day spread between Momentum and Value factor performance in the 28 year history of our data.

~ Evercore ISI analysts (Nov 10 report), "Short sellers lost $5.5 billion so far in November. Here are the trades that hurt the most," MarketWatch.com, November 11, 2020