DALLAS--(BUSINESS WIRE)--CyrusOne Inc. (NASDAQ:CONE) (“CyrusOne”) announced today that it has commenced the public offering of 11,300,000 shares of its common stock. All of the shares of common stock are being offered by CyrusOne. The underwriters will be granted an option to purchase up to 1,695,000 additional shares of common stock from CyrusOne at the public offering price, less underwriting discounts. Citigroup, Goldman, Sachs & Co., Morgan Stanley, KeyBanc Capital Markets, Barclays, J.