short selling
US /ˈʃɔːrt ˌsel.ɪŋ/
UK /ˈʃɔːrt ˌsel.ɪŋ/

1.
vente à découvert
the selling of shares that the seller does not own, with the intention of buying them back at a lower price and profiting from the difference
:
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He made a fortune through short selling during the market downturn.
Il a fait fortune grâce à la vente à découvert pendant le ralentissement du marché.
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Regulators are looking into the ethics of short selling.
Les régulateurs examinent l'éthique de la vente à découvert.