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Monday, October 8, 2007

Mortgage Backed Securities, CMO Bonds and Yield

Mortgage backed securities offer the best alternative to decreased loan demand. Pass throughs, CMO’s and adjustable rate MBS’s are paid to the bank just like a loan that the banks has made for a mortgage. If a person takes out a $250,000 mortgage, the customer is paying back the bank monthly with principle and interest. As you know, if you own a home, your initial payments are mostly INTEREST in the early years. A mortgage backed security, if it is a new issue will operate the same way. As you learned in the product section, the payments on MBS’s are based on the average coupon of the underlying mortgages. If the Weighted Average Coupon (WAC) is low, the payments will be slower because people will not be refinancing as much.

Geography also plays a part. You want to know where the mortgages are, that the agency is issuing the bond off of. California and New York for instance, has more people moving than states like Nebraska or Alabama, where the population is more settled. The more transient a state, the faster the bond will pay.

Length of the outstanding mortgages, or current face of the mortgages are a factor. “Seasoned pools”, as they are called, are mortgage pools that have had several years of payment on them. They have more predictable payments and duration. They will normally pay better because of that. Seasoned pools are usually what banks are looking for. They are generally interested in better cash flow and predictable cash flow.

The compensation or mark up potential is good in mortgage backed bonds. They are priced above treasuries because, although they are AAA rated, they are not absolute in their pay off and the payments fluctuate. Since they are usually 15-30 years in duration, they allow for price mark up. Where treasuries and straight agency debt allow for a few ticks to a .25, MBS’s can create spreads between buying and selling them up to a ½ or ¾ of point. This can translate to a $5,000 commission on a $1 million sale. Remember, a million dollars in one bond is not unusual for most institutions, and for banks over $500 million in assets, it’s normal.

CMO Bonds

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