Standard & Poor’s and Fitch Ratings have raised concerns about the proposed risk-retention rule that has sparked an outcry among MBS issuers, but the rating services appear to be taking a more measured view – in fact, S&P says it may be good for the market’s long-term health. In a recent report, S&P agreed with the industry consensus that the proposed rule won’t help the housing market and non-agency MBS sector right now. But the new standard for securitization, which sets a high bar for qualified residential mortgages that would be exempt from a ...