A few months ago, New York's new mayor stood outside Ken Griffin's penthouse. He used it to sell a tax on the rich.
Griffin's answer is showing up 1,300 miles south. It is showing up in poured concrete.
His hedge fund is called Citadel. It just grew its plans for a new Miami home base. Back in New York, a $6 billion project is suddenly in doubt.
The new filings show the plan is getting bigger. Citadel is adding a 300-unit apartment building to its future office at 1201 Brickell. That spot sits in Miami's main money district. The plan also adds a parking garage with more than 1,400 spaces.
The firm did not stop there. It bought every single unit in a 22-story condo tower across the street. The goal is to knock that tower down. That clears space for a bigger campus.
Think of it like buying the house next door just to grow your own backyard.
"Miami is open for business," Citadel said. The firm added that the project will draw "leading global firms, including Citadel and Citadel Securities."
This is not a new turn for Griffin. He moved Citadel from Chicago to Miami back in 2022. So the Brickell push builds on a move he started years ago. Hedge funds like his are the big players that smart investors love to track.
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It started on Tax Day in April. Mayor Zohran Mamdani posted a video. He stood outside Griffin's Manhattan penthouse. Griffin bought that home for $238 million.
Mamdani used the clip to push a new yearly fee. It hits luxury second homes worth more than $5 million. The fee only applies if the owner does not live in the city full-time.
Griffin was not amused. He called the attack "creepy and weird." He also said it showed "a profound lack of judgment."
Citadel's leaders went further. They warned that a planned Midtown office could become a casualty of the mayor's policies. The clash played out in public for weeks.
For the very rich, where you live is partly a tax decision. Griffin seems to have made his.
The bigger question is what happens to New York. Citadel had planned to rebuild 350 Park Avenue. Its operating chief, Gerald Beeson, said that work would create 6,000 building jobs. He said it would add more than 15,000 long-term jobs too.
In an April memo, Beeson put the cost at more than $6 billion. Then he added two key words: "if we move forward."
Mamdani has since cooled off. He even thanked Griffin for what he has done for the city. Griffin, for his part, is busy pouring concrete in Florida.
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