download the appSign up to get the inside scoop on today’s biggest stories in markets, tech, and business — delivered daily. In today's big story, we're looking at how two of the most powerful Wall Street firms are doing two years after relocating to Miami . Nearly two years ago the billionaire uprooted his hedge fund, Citadel, and market maker, Citadel Securities, from their Chicago headquarters to Miami. Employees at Citadel and Citadel Securities spoke to Business Insider's Emmalyse Brownstein about life in the new HQ . Shares tumbled 55% after The Wall Street Journal reported that Fisker had hired restructuring advisors to assist with a possible bankruptcy filing.

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