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A comment on Melvin Capital Lost 53% in January, Hurt by GameStop and Other Bets. Parent comment

Re:Melvin Capital Lost 53% in January, Hurt by GameStop and ... by tchanglington on Sunday January 31, 2021 @02:56PM (#25981977)
Payoffs for a short position is stock price right now minus stock price at maturity. You can make a synthetic short by longing a put and writing a call at the same strike price and the problem you see here with the short squeeze is really writing the call.
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Re:Melvin Capital Lost 53% in January, Hurt by GameStop and ... by jbp on Sunday January 31, 2021 @06:20PM (#25983635)
Thank you. But those short calls are not in 13F, so they can selectively disclose?
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