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About EMMA


Electronic Municipal Market Access








The Electronic Municipal Market Access (EMMA®) website is the municipal market’s free source of data and information on virtually all municipal bonds. The Municipal Securities Rulemaking Board (MSRB) operates the EMMA website to promote a transparent, fair and efficient market. Discover how investors, state and local governments, financial professionals and the public can use EMMA to make more informed decisions about municipal securities. 

Resources Available on EMMA

Research Municipal Securities

EMMA provides real-time trade prices, official statements, credit ratings, ongoing disclosure documents and other information about more than one million outstanding municipal securities:

  • Find a Security. EMMA’s advanced search tools allow users to find a specific municipal security by its unique identifier or by name.
  • Gauge Municipal Bond Prices. EMMA’s price discovery tool allows investors to find and compare trade prices of municipal securities with similar characteristics.
  • View Upcoming Issues. See a new issue calendar listing the municipal bond issues scheduled to come to market, as well as those recently sold.
  • Track a Security. EMMA users can create a free MyEMMA profile to receive an alert when new information becomes available for selected securities.

Browse Issuers

EMMA features an interactive map that enables users to access a searchable directory of all state, city, county and other municipal securities issuers in a particular state:

  • Issuer Homepages. Each issuer has a unique page that consolidates all information available on EMMA about the issuer’s securities, including recent trades, official statements, disclosure documents and optional information such as contact information, website addresses and pre-sale documents. Learn more about issuer homepages.

Explore Trends and Data
  • EMMA’s market statistics provide insight into new issuance trends, trade activity and continuing disclosure filings.
  • An economic calendar highlights key data releases, announcements and other macroeconomic developments that could have an impact on the municipal market.


Long-Term Vision for EMMA

Over the past 15 years, the MSRB has significantly advanced transparency in the municipal securities market through its EMMA website and related technology systems. Looking ahead, leveraging our investment in the cloud and in our people, the MSRB is focused on the continued enhancement of EMMA as a premier municipal market transparency platform that benefits all market participants and the public.

Guiding Principles

To achieve our vision for EMMA, the MSRB must evaluate and prioritize many possible investments, developments and improvements. These guiding principles are intended to aid the MSRB in determining the future development and enhancement of EMMA:

  • Promote fair municipal security transactions and support investment and issuance decisions by making. comprehensive pricing and disclosure information readily available at no cost.
  • Facilitate efficient access to and submission of municipal market data, disclosures and information through an interface that is intuitive and dynamic.
  • Prioritize potential enhancements based on the public interest, cost, benefit, and size of target audience.
  • Ensure that data storage and delivery are reliable and secure without sacrificing availability.  

Learn More about EMMA

The MSRB provides educational resources about how to use EMMA: