 Shares of Aethlon Medical exploded as much as 465 to a two-year high on Wednesday despite not releasing any news since last week, when one of its devices showed positive results in two COVID-19 patients. A June 8 report from Zacks Investment Research appeared spark conversation on Reddit, the social-networking platform largely responsible for many of the recent price swings in so-called meme stocks like GameStop and AMC Entertainment. 