The entry of Dominion Bond Rating Service into the three-horse ratings race in non-agency MBS and non-mortgage ABS has not turned the market upside down, but it has injected a little more diversity in the shares of the growing business the ratings services are winning. According to a new analysis by Inside MBS & ABS, Standard & Poor’s and Moody’s Investor Services continue to dominate the business. S&P was credited with rating some $1.053 trillion… [Two data tables included]