Falling oil prices may have little impact on residential MBS even if distressed prime jumbo borrowers in oil-producing states were to default on their loans, according to Standard & Poor’s. The rating agency’s optimistic conclusion may be good news to investors concerned that job cuts in the oil industry will lead to high default rates among prime jumbo borrowers, particularly in states where a high percentage of workers are in oil production. Market information suggests that values of prime jumbo MBS in oil-producing states are being affected, as the market factors in the risk of losses arising from borrower defaults in these regions, the S&P report said. However, it is unclear whether the additional spread on MBS with high concentrations ...