Ken Griffin's Chicago penthouse — listed for $10 million less than he paid for it — has a buyer. A representative for Griffin said that his real-estate investments in Florida make up for the loss. AdvertisementGriffin and the listing agents for the Chicago penthouse did not respond to requests for comment sent by Business Insider. In 2023, he added, only four properties sold for that amount. AdvertisementAccording to Rafael Murillo, a Compass agent in Chicago, properties that cost eight figures are not a regular occurrence.

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