Why is the Regis Corporation (RGS) stock price up 300%?

Regis Corporation (NASDAQ: RGS) has seen a massive spike in its share price growth in the past 24 hours, rising $15.45 – over 300$20.52 during the US trading session, before correcting down slightly by $0.70 to trade at$19.82 in after hours trading – still a significant leap up from the previous day's close of just $5.07 on June 24. But why t ...