Gupta-owned Oakbay Resources and Energy’s share price plummeted by over 90% on the JSE on Wednesday, the same day that hackers attacked the company’s websites and shut them down. The JSE-listed company was trading R20.86 lower at R2.14, with only 30 shares trading. The company, with a market cap of R1.71-billion, was working off a price to earnings ratio of -3 382. The JSE average is around 16.