saved byJoanna Yu on 2008-04-11
Increasing the eligible loans to $729,750 from $417,000 would change the characteristics of mortgage-backed securities, leading traders to exact a premium for increased interest-rate risk.
Borrowers with large, jumbo loans are more likely to refinance since their savings are greater for each incremental drop in rates than for a smaller loan. The loans will taint the bonds since traders don't initially know the make-up of the securities known as "agency" MBS.