SAN FRANCISCO (S&P Global Ratings) Aug. 30, 2019--S&P Global Ratings revised its outlook to stable from positive and affirmed its 'A+' long-term rating on Washington Health Care Facilities Authority's series 2011A, 2015, and 2017A-2017C revenue bonds, issued for Fred Hutchinson Cancer Research Center (Fred Hutch), in addition to its 'A+' issuer credit rating (ICR) on Fred Hutch. "Fred Hutch significantly bolstered its balance sheet and posted healthy operating results in fiscal 2018 with the sale of its shares in Juno Therapeutics, which support the current rating level," said S&P Global Ratings credit analyst Ying Huang. "However, the outlook revision reflects our expectation that the financial resources ratios will likely moderate over the next two years due to an increased debt