by: Sami Weisband Nov 11, 2020 Stocks for live music companies such as Live Nation immediately increased following Pfizer and BioNTech’s November 9 announcement that their co-developed COVID-19 vaccine was more than 90 percent effective in preventing COVID-19 in patients without prior SARS-CoV-2 infection. Specifically, Live Nation’s stock rose by 20.8% ($67.73); Madison Square Garden …