Billionaire hedge fund mogul Ken Griffin is continuing his exodus from Chicago with the sale of his luxury penthouse at the No. 9 Walton condo tower, taking a staggering 44% loss on the deal.

During the third quarter, billionaire Ken Griffin cut Citadel's stake in Palantir by 91% while increasing his hedge fund's stake in Alphabet by 20%. Palantir reported encouraging financial results ...