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America is investing
in the future

Build America Mutual guarantees the municipal bond investments that help build essential American infrastructure like roads, schools, and water systems.

BAM-insured bonds are rated AA with a Stable outlook from S&P Global Ratings. They help cities, counties, school districts, and our other member-issuers achieve more efficient access to the capital markets, while investors benefit from BAM’s unconditional promise of timely payment of interest and principal. 

BAM’s Market Results

Deals Priced Last Week (updated 6/17/2024)

$617 million
# of Transactions:

Secondary Trades

$1.69 billion
# of Trades

"Infrastructure Happens at the State and Local Level"

States and local governments pay for 70% of the infrastructure built in the US every year, and most of that funding comes from the sale of municipal bonds. Build America Mutual CEO Seán McCarthy spoke with Bloomberg Radio’s Carol Massar on November 4, 2020, about the implications of the election…

BAM Municipal Bond Insurance and the COVID-19 Pandemic

Frequently Asked Questions — COVID-19 cases are leading to a wave of questions about the fundamental credit quality of U.S. municipal bond issuers.

Congratulations to the colleges and universities that have used BAM insurance to help sell more than $1 billion of higher education revenue #municipalbonds so far in 2024 … including this week’s sales for @FloridaState and @WSSURAMS

Happy Pride Month! At BAM we celebrate authenticity and are committed to building a safe and inclusive workplace within #muniland. Join BAM in our ongoing efforts to engage in authentic allyship, champion diversity, and embrace the LGBTQIA+ community. #PrideMonth

BAM celebrated our largest turnout yet at #JPMCC yesterday and wrapped up the day with a well-deserved dinner at Arte Cafe. Congratulations to all of the 2024 Corporate Challenge Finishers!

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White Paper

Insured Municipal Bonds and the Individual Investor

Why guaranteed bonds may be the right balance of income and risk for your portfolio
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S&P Global Ratings Affirms BAM's AA Rating and Stable Outlook — July 2023

July 13, 2023
S&P Global Ratings has published its full annual report on Build America Mutual and affirmed BAM’s AA rating and Stable outlook, the highest rating S&P assigns to any active bond insurer. The report recognized BAM’s “excellent capital adequacy with a buffer above its current rating” and the fact that BAM…


Asset TV: Investing in Municipal Utility Districts

December 06, 2021
Understanding key credit factors that influence MUD investments

The #1 Muni-only
insurer is the
innovation leader

BAM’s unique mutual structure and 100% dedication to the municipal bond market means issuers and investors get more:


Only BAM provides Credit Profiles for every transaction and updates them annually


Only BAM GreenStar uses municipal-specific criteria to identify green bonds to help issuers attract ESG investors


Only BAM offers issuers a credit to save on the costs of issuance when refunding BAM-insured bonds