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Re:Tesla Is Facing a Crucible by philipwhiuk on Sunday March 18, 2018 @02:01PM (#16613258)
You just buy a new short position. Also you can have a short position lasting a minute, an hour, a day, a week, a month.
Re:Tesla Is Facing a Crucible by philipwhiuk on Sunday March 18, 2018 @02:02PM (#16613267)
(typically a broker will insist you have sufficient collateral period to indicate you can fulfil the short position).