An anonymous reader quotes Fortune: Investors betting that Tesla Stock will lose value -- so-called "shorts" -- have made $1.2 billion since CEO Elon Musk first tweeted about taking the company private. Much of that gain came on Friday, after the New York Times published a revealing, emotional interview with Musk that drove Tesla stock down nearly 9%. The tally comes from a report released Friday by stock analytics firm S3 Partners. The Friday collapse helped reverse a price spike after Musk's August 7 Tweet saying he was "considering taking Tesla private at $420," about 18% higher than the stock's market value at the time. According to S3, the subsequent surge in Tesla stock cost short positions $1.3 billion. But soon after, it became clear that Musk had exaggerated the certainty of his funding, and the SEC began a probe of his statements, driving the stock back down. On Friday, the Times interview with Musk detailed his 120-hour work weeks, lack of social life, and reliance on Ambien to sleep. That sent the stock down 9% in one day, for a total drop of 19% over 10 days. That gave $2.5 billion back to the shorts, for a net gain of $1.2 billion since Musk's going-private tweet. Tesla remains the most-shorted stock on the American stock exchanges, and the researchers note that only 4% of shorts have actually cashed in these on-paper gains.
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