Analysis: ‘Woke' ESG scores from credit raters draw GOP ire to muni market

While Moody's Investors Service, S&P Global Ratings and Fitch are the biggest credit assessors, some state officials say their ratings aren't mandatory. Already, issuers increasingly are opting for a rating from just one of the companies, with single-rated sales totaling 28% of issuance year-to-date, up from 19% in 2008, according to a report from Municipal Market Analytics.