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ImageBond insurance typically helps provide additional protection from default to a tax-free municipal bond. Until eight months ago, if the bond insurer was rated AAA by Standard & Poor’s (S&P), there was little thought given to the underlying bond issuer’s credit quality. However, because the bond insurance industry looks very different today, you need to look closer at insured bonds.

More Downgrades Possible
The risk of further insurer downgrades continues to cast a shadow on the industry. The only major development is that the general quality of the insurers has fallen into three distinct tiers, as shaded in the chart below.

Top Tier — Insurers that are rated AAA/Aaa by all three rating agencies and have stable outlooks.

Middle Tier — Insurers that have tried to retain their AAA/Aaa ratings by adding substantial amounts of capital. While they remain Aaa-rated by Moody’s, they have been downgraded to AA by S&P and Fitch and either have a negative outlook or are on review for a possible downgrade by all three rating agencies.

Bottom Tier — Insurers that are rated below investment-grade quality by one of the three rating agencies.

Major Bond Insurers: Rating & Outlook    

Insurer 

S&P 

Moody's 

 Fitch

Assured Guaranty AAA: Stable Outlook  Aaa: Stable Outlook  AAA: Stable Outlook 
FSA  AAA: Stable Outlook  Aaa: Stable Outlook  AAA: Stable Outlook 
MBIA  AA: On Review for Possible Downgrade  Aaa: On Review for Possible Downgrade  AA: Negative Outlook 
Ambac  AA: On Review for Possible Downgrade  Aaa: On Review for Possible Downgrade  AA: Negative Outlook 
CIFC  A+: Negative Outlook  Ba2: On Review for Possible Downgrade or Upgrade  CCC: On Review for Possible Downgrade or Upgrade 
FGIC  BB: Negative Outlook   Baa3: On Review for Possible Downgrade  BBB: Negative Outlook 
XL Capital  A-: On Review for Possible Downgrade  A3: On Review for Possible Downgrade  BB: Negative Outlook 
Source: Fitch, Moody's, S&P, Edward Jones. Information as of 6/5/08.    

Fewer New Issues Being Insured
Currently, fewer new issues of municipal bonds are being insured. Those that are insured are backed by either FSA or Assured Guaranty (which are both in the top tier). Issuers are currently receiving little or no benefit in the form of lower rates to use any other bond insurer.

Significant differences have developed among bonds backed by insurers in different tiers. There’s a trade-off between interest rate and credit quality. The interest rate offered by bonds in the top insurance tier is lower than that for bond insurers in the lower tiers. In fact, bonds insured by middle- and bottom-tier bond insurers are typically offered at rates that are not that different from those of the uninsured underlying issuer. This suggests that a significant risk of further downgrades exists.

Credit Rating is Key
In the past, your evaluation of a bond may have centered on whether it was insured. Today your primary consideration should be the credit rating of the underlying bond
issuer that is being insured. In this new era for bond insurance, you must approach your buying decisions in a way that takes into account the greater level of risk surrounding bond insurers. Contact your financial advisor today about bonds that are appropriate for your portfolio.

Mario D. De Rose, CFA
Fixed Income Strategist

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