Shares of Koss Corp. were rising more than 35% on Friday afternoon as meme-stock chatter continues to swirl around the headphone maker. Koss shares skyrocketed 143.8% on Wednesday, the most recent ...

After-hours volume was 71,900. Related: Koss continues rally as meme-stock chatter continues around headphone maker The stock also snapped a two-day winning streak. Koss’s shares have declined ...