short selling
noun[U]
STOCK MARKET(alsoshort-selling)ukus(alsoshorting)theactivityofsellingsharesthat you haveborrowed,hopingthattheirpricewillfallbefore youbuythem back andreturnthem totheirowner, so that you make aprofit:
Thisstockis alikelytargetforshortselling.
Shorting is one of themainmethodsofcashingin during astockmarketcollapse.