...+ On March 1, 2017, CBOE Holdings, Inc. announced that it completed its acquisition of Bats Global Markets, Inc. on Feb. 28. + The Bats acquisition improves CBOE's business risk profile through added product and geographical diversification, offset by increased leverage. + As a result, we are affirming our '###+' long-term issuer credit rating on CBOE as well as our '###+' issue credit rating on the company's US$650 million senior unsecured notes due 2027. + The stable outlook reflects our expectation that the company will reduce leverage, with funds from operations-to-debt approaching 35% over the next two years, while successfully integrating Bats into the wider group. TORONTO (S&P Global Ratings) March 17, 2017--S&P Global Ratings today said it affirmed its '###+' long-term issuer credit rating on CBOE Holdings, Inc. S&P Global Ratings also affirmed its '###+' issue credit rating on the company's US$650 million senior unsecured notes due 2027. The outlook is stable. "The company's acquisition...