Shares of Private Mortgage Insurers were down roughly 10% yesterday following news that Freddie Mac (FMCC) and private MI Arch had initiated a structure whereby a panel of reinsurers will provide the necessary credit risk enhancement for a portion of low down-payment mortgages otherwise met by traditional mortgage insurance, Deutsche Bank analyst Phil Stefano tells investors in a research note. The analyst recommends buying Essent Group (ESNT), MGIC Investment (MTG), NMI Holdings (NMIH) and Radian Group (RDN) following yesterday's weakness. Clients have relayed from reports the potential for a 10%-30% decline in Singles pricing, the analyst says. He notes this business makes up roughly 15%-20% of new business being written today. Assuming a 20% price cut on 20% of the business combined with the uncertainties underlying the new structure, Stefano would have anticipated a "muted high-single-digit reaction to the stocks." He feels the selloff yesterday in the Private Mortgage Insurers is overdone.