Ronin Capital Forced to Shut as Global Market Freefall Continues

Ronin Capital LLC, a proprietary trading firm, shuttered operations as volatile swings in markets left it unable to meet obligations.

The Depository Trust & Clearing Corp. is working with Ronin and regulators on an orderly wind-down, the agency said Friday in a statement. CME Group Inc., owner of the world’s largest futures exchange, said that it held auctions to sell Ronin positions after “the firm was unable to meet its capital requirements.”

Chicago-based Ronin was started nearly 20 years ago and has offices in London, Hong Kong and New York. It was active in fixed income, equities and ...