CyrusOne Announces Addition to S&P MidCap 400 Index

DALLAS--()--CyrusOne Inc. (“CyrusOne”) (NASDAQ:CONE), a premier global data center REIT, announced today that the Company will be added to the S&P MidCap 400 effective at the open of trading on Wednesday, March 1.

“Our addition to the S&P MidCap 400 index is an exciting accomplishment and a reflection of the success we have had in rapidly growing our business in a highly profitable manner, creating significant value for our shareholders,” said Diane M. Morefield, chief financial officer. “The company’s equity market capitalization has increased over 50% since the beginning of last year, and we are well positioned for continued strong growth in 2017 and beyond.”

The S&P U.S. indices are designed to reflect the U.S. equity markets and, through the markets, the U.S. economy. The S&P MidCap 400 provides investors with a benchmark for mid-size companies. Eligibility criteria include, among other considerations, U.S.-based status, unadjusted market capitalization of between $1.4 billion and $5.9 billion, public float of at least 50% of shares outstanding, and adequate liquidity with an active secondary market.

About CyrusOne

CyrusOne (NASDAQ: CONE) is a high-growth real estate investment trust (REIT) specializing in highly reliable enterprise-class, carrier-neutral data center properties. The Company provides mission-critical data center facilities that protect and ensure the continued operation of IT infrastructure for more than 945 customers, including 181 Fortune 1000 companies.

CyrusOne's data center offerings provide the flexibility, reliability, and security that enterprise and cloud customers require and are delivered through a tailored, customer service-focused platform designed to foster long-term relationships. CyrusOne is committed to full transparency in communication, management, and service delivery throughout its 35 data centers worldwide.

Contacts

CyrusOne Inc.
Investors
Michael Schafer, 972-350-0060
investorrelations@cyrusone.com
or
Media
David Baum, 646-428-0620
cyrusone@allisonpr.com

Contacts

CyrusOne Inc.
Investors
Michael Schafer, 972-350-0060
investorrelations@cyrusone.com
or
Media
David Baum, 646-428-0620
cyrusone@allisonpr.com