
The so-called meme stocks are at it again, with shares in several companies rising sharply higher in after-hours trading.
Koss Corporation (NASDAQ:KOSS) is the leader of the pack, up 21% to $11.70 at press time. GameStop Corp. (NYSE:GME) is up 16.5% to $143.50; Shares closed the regular session up nearly 31% at $123.14.