...+ Highmark Inc. has meaningfully improved its operating performance while maintaining a very strong financial risk profile. + We are affirming our ratings on Highmark Inc. and its affiliates, while revising the outlook from stable to positive. + The positive outlook reflects our expectation that the company will continue to grow margins, while improving its affiliated network adequacy post consent decree termination. NEW YORK (S&P Global Ratings) March 21, 2017--, S&P Global Ratings said today it affirmed its 'A-' financial strength and long-term counterparty credit ratings on Highmark Inc. and affiliates. We maintain our view of Highmark Inc. as a core member of the Highmark Health group of companies. The outlook was revised from stable positive. "The positive outlook reflects our view of the company's diversification within its revenue base and operations, along with the significant margin improvements reported within its Health Plan Division and the organization more broadly" said Anthony...