Wall Street has become the latest camp to embrace credit scoring for  mortgages. And banks whose loans are securitized stand to benefit. 
Credit rating agencies like Standard & Poor's Corp. and Duff & Phelps  are now considering credit scores when determining how pools of mortgages   are likely to behave. When the pools score well, less financial support is   needed to secure a desired rating. This translates into better prices for   the mortgages that banks supply.       
  
Lenders that use the scores can also "more efficiently allocate  resources to underwrite loans to investor standards," said W. Roger   Haughton, president of PMI Mortgage Insurance Co.   
The rating agencies are using scoring models developed by mortgage  insurers like PMI. Insurers pioneered the approach during the last decade,   developing systems to score loans when they are originated and when there   is a likelihood they might fail. Now, they are applying the same standards   to loans bound for Wall Street.       
  
The rating agencies are applying the scores to loans that do not meet  criteria set by the Federal National Mortgage Association and Federal Home   Loan Mortgage Corp., or Freddie Mac. Lenders originate more than $100   billion of such loans each year.     
Banks, life insurance companies, and other financial giants make up the  bulk of mortgage securities buyers, but Freddie Mac isn't forgetting the   little guy.   
The housing finance agency has just crafted an unusual arrangement with  A.G. Edwards & Co., a regional investment house based in St. Louis, to   reach more retail buyers.   
  
A.G. Edwards will, for the first time, underwrite an issue of mortgage  securities from Freddie Mac. The deal involves $12 million of securities, a   figure that could grow to $50 million under an option A.G. Edwards has been   granted.     
Until now, the task of underwriting has fallen to Wall Street investment  houses like Bear, Stearns & Co. that deal largely with institutional   clients.   
But A.G. Edwards has a different type of investor in mind. The St. Louis  brokerage is designing the mortgage securities to appeal to its prime   constituency, thousands of individual investors. The products will be less   complex and have simpler redemption structures than many other mortgage   securities. The new bonds will also have features like an estate clause to   make it easier for survivors to make redemptions.         
A.G. Edwards is no stranger to mortgage securities or to Freddie Mac.  But until now, it had played a secondary role, distributing mortgage   products underwritten by other investment firms. The new deal "is a way for   A.G. Edwards to directly tap Freddie Mac, as opposed to going through an   intermediary," said Andrew Blocher, the agency's mortgage securities   marketing account manager for dealers.         
  
Freddie Mac is clearly comfortable with A.G. Edwards as a leader. The  investment firm has "the technical knowledge and distribution to become   more of a strategic partner," Mr. Blocher said.   
A.G. Edwards sees the arrangement with Freddie as something of a coup  and believes that investors will be responsive. "Our customers really do   like the agency's name" on their mortgage securities, said Scott Zajac,   vice president for mortgage securities trading at A.G. Edwards.