Ken Griffin Moving Citadel From Chicago to Miami Following Crime Complaints

Billionaire Ken Griffin is relocating his big hedge-fund firm Citadel from Chicago to Miami, the third major employer to announce the move of a corporate headquarters from Illinois in the past two months.

In a letter to employees Thursday, Mr. Griffin said he had personally moved to Florida and that his market-making business, Citadel Securities, would also transfer. He wrote that he views Florida as a better corporate environment and though he didn’t specifically cite crime as a factor, company officials said it was a consideration.