South Korean Stocks Jump After Regulator Bans Short Selling

(Bloomberg) — South Korean stocks surged after regulators reimposed a full ban on short-selling for about eight months, a controversial move that authorities said was needed to stop illegal use of a trading tactic deployed regularly by hedge funds and other investors around the world.

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The ban may help appeal to retail investors who have complained about the impact of shorting — the selling of borrowed shares by institutional investors — ahead of elections in…