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Steven Cohen firm bans some instant messaging

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Point72 Asset Management LP, Steven A. Cohen’s family office and successor to his hedge-fund firm SAC Capital Advisors LP, is banning some of its employees from using instant messaging for external communication after last year agreeing to settle insider trading allegations.

Banks may disable trader chat rooms

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Big banks are considering disabling online chat rooms that link traders across many financial institutions over concerns of mounting scrutiny from regulators, the Wall Street Journal reported, citing people familiar with the discussions.

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