OVERVIEW We affirmed our ratings on seven classes from Morgan Stanley Capital I Trust 2013-ALTM, a U.S. CMBS transaction. The affirmations reflect our analysis of the collateral's credit characteristics and performance, as well as the transaction's structure and the liquidity available to the trust. CENTENNIAL (S&P Global Ratings) June 19, 2018--S&P Global Ratings today affirmed its ratings on seven classes of commercial mortgage pass-through certificates from Morgan Stanley Capital I Trust 2013-ALTM , a U.S. commercial mortgage-backed securities (CMBS) transaction (see list). For the affirmations, our expectation of credit enhancement was in line with the affirmed rating levels. We affirmed our rating on the class X-A interest-only (IO) certificates based on our criteria for rating IO securities, in which the