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Jyutping cou1 pun4
Pinyin cāo pán

Definitions (Wiktionary)
  1. verb, intransitive, verb-object
    to trade (stocks, futures, etc.)

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Jyutping cou1 pun2
Pinyin cāo pán

Definitions (粵典–words.hk)
  1. x

操盤 [-盘]

Jyutping
Pinyin cāo pán

Definitions (CC-CEDICT)
  1. (finance) (of a fund manager, high-wealth individual etc) to make large trades (in stocks, futures etc)
  2. (fashion, movies etc) (of an industry heavyweight) to make a play in the market