Why Inovio Stock Is Sinking Again Today

Shares of Inovio Pharmaceuticals (NASDAQ: INO) were sinking 12.2% lower as of 11:16 a.m. EDT on Wednesday. This marked the second consecutive day of steep declines for the stock after Inovio's Q2 update on Monday evening didn't provide as much detail about the clinical results of its COVID-19 vaccine candidate INO-4800 as analysts wanted. The core issue for Inovio is the skepticism about just how effective INO-4800 will be in protecting against the coronavirus that causes COVID-19.