Devastating week for Big Boys. Novavax falls to third overall

Really devastating week for COVID VACCINE STOCKS - particularly the biggest stocks. Total return falls from 282% down to 217%.

There were five stocks whose return tumbled more than 20% over the week, lead by Novavax which dipped to third place for the first time and gave up 27% of total return. 

BioNTech, Virology, Moderna and Curevac also gave up more than 20%.

Heat Biologics has replaced Translate Bio (bought out by Sanofli) in the top ten. Heat was the top performer -- only giving up 3% for the week.