$OPGN OpGen (NASDAQ:OPGN) Frequently Asked Questions HOW HAS OPGEN'S STOCK BEEN IMPACTED BY COVID-19 (CORONAVIRUS)? OpGen's stock was trading at $2.07 on March 11th, 2020 when COVID-19 (Coronavirus) reached pandemic status according to the World Health Organization (WHO). Since then, OPGN shares have decreased by 3.9% and is now trading at $1.99. View which stocks have been most impacted by Coronavirus.