Bond Insurance: What it is and how it works

Bond insurance is when an insurance company guarantees scheduled payments of interest and principal on a bond in the event of a payment default by the issuer

Now that you’re up to date on bond valuation, let’s look at what bond insurance is and how it works.

What is Bond Insurance?

Bond insurance is a kind of policy that, in the event of default, guarantees the repayment of the principal and all associated interest payments to the bondholders. Once purchased, the issuer’s bond rating is no longer applicable. Instead, the bond insurer’s credit rating will be applied to the bond.

How does Bond Insurance work?

With bond insurance, the insurer should automatically take up the liability and make any principal and interest payments owed on the issue. This means that bondholders shouldn’t encounter much disruption if the issuer happens to default. As compensation for its insurance, the insurer is paid a premium.

Bond insurance is really a form of credit enhancement. The premium is a measure of the perceived risk of failure of the issuer. A majority of insured securities are municipal bonds issued by states and local governments in the U.S.

There’s a lot to know here. To learn more about bonds, check out our Investing in Different Markets course!

The Best Stock Newsletters as of May 31, 2025

Ranking of Top Stock Newsletters Based on Last 3 Years of Stock Picks

We are paid subscribers to dozens of stock and option newsletters. We actively track every recommendation from all of these services, calculate performance, and share our results of the top performing stock newsletters whose subscriptions fees are under $500. The main metric to look for is "Excess Return" which is their return above that of the S&P500. So, based on last 3 years ending May 31, 2025:

RankStock NewsletterStock
Picks
S&P500
Return
Excess
Return
Percent
Profitable
Max %
Return
1.Seeking Alpha logo
Alpha Picks
6470.4%47.0%73%969%
Summary: 2 picks/month based on Seeking Alpha's Quant Rating; Retail Price is $499/yr. See details in our Alpha Picks Review.June, 2025 Promotion:
Save $50
2.Moby logo tiny
Moby.co
30843.3%12.3%74%1764%
Summary: 60-150 stock picks per year, segmented by industry; Retail Price is $199/yr. Read our Moby Review.June, 2025 Promotion:Next pick free!
3.Motley Fool logo
Stock Advisor
7241.2%6.9%78%258%
Summary: 2 picks/month and 2 Best Buy Stocks lists focusing on high growth potential stocks over 5 years; Retail Price is $199/yr.
Read our Motley Fool Review.
June, 2025 Promotion: Get $100 Off
4.Zacks logo
Value Investor
3917.5%6.1%38%410%
Summary: 10-25 stock picks per year based on Zacks' Quant Rating; Retail Price is $495/yr. Read our Zacks Review.June, 2025 PROMOTION:$1, then $495/yr
5.Motley Fool logo
Rule Breakers
6640.0%4.7%61%311%
Summary: 2 picks/month focusing on disruptive technology and business models; Lifetime average return of 355% vs S&P500's 149% since 2005; Now part of Motley Fool Epic. Read our Motley Fool Epic Review.Current Promotion: Save $200
6.TipRanks logo
TipRanks SmartInvestor
12110.6%3.7%55%340%
Summary: About 1 pick/week focusing on short term trades; Lifetime average return of 355% vs S&P500's 149% since 2015. Retail Price is $379/yr. Read our TipRanks Review.Current Promotion: Save $180
7.TheStreet logo
Action Alerts Plus
39420.0%3.4%57%220%
Summary: 100-150 trades per year, lots of buying and selling and short term trades. Read our Jim Cramer Review.Current Promotion: None
8.Motley Fool logo
Stock Advisor Canada
3632.3%0.5%69%378%
Summary: 1 pick/month from the Toronto stock exchange; Retail Price is CD$199/yr. Read our Motley Fool Canada Stock Advisor Review.June, 2025 Promotion: Save $100
Top Ranking Stock Newsletters based on their last 3 years of stock picks' performance through May 31, 2025 as compared to S&P500. S&P500's return is based on average return of S&P500 from date each stock pick is released. NOTE: To get these results you must buy equal dollar amounts of each pick on the date the stock pick is released. Investor Business Daily Top 50 based on performance of FFTY ETF.

Build your wealth faster with best stock picks: See our new May 31, 2025 ranking of the BEST STOCK NEWSLETTERS.