https://www.reuters.com/article/us-tesla-results-shorts/tesla-second-quarter-report-could-be-an-850-million-boon-or-bane-for-short-sellers-idUSKBN1KM5MT

Tesla Inc - the most heavily shorted U.S. company - is set to report quarterly results on Wednesday, and short-sellers could be dealt a nearly $850 million loss or gain, depending on the direction of the post-earnings stock move.