The cancellation of Ant Group's IPO in 2020 was a symbolic event in Chinese regulators' clampdown on tech firms. © Reuters CISSY ZHOU and JACK STONE TRUIT, Nikkei staff writers June 10, 2022 00:27 JST Updated on June 10, 2022 07:04 JST | China Copy Copied HONG KONG/NEW YORK -- U.S.-listed Chinese stocks tumbled Thursday after regulators in Beijing and Ant Group denied reports that Jack Ma's fintech company was dusting off shelved plans for an initial public offering. Read Next