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Contact:     Leah Szarek, Chief External Relations Officer


Washington, DC – The Municipal Securities Rulemaking Board (MSRB) today expanded the availability of yield curves and indices on its free Electronic Municipal Market Access (EMMA®) website, the official source of municipal securities data and disclosure documents. The addition of the ICE Municipal AAA Yield Curve gives investors and others another tool for understanding the general level of municipal interest rates.

“Over the past several years, the MSRB has made important enhancements to EMMA, including adding tools and resources, such as yield curves and indices, that provide municipal market participants with additional information to help them better understand and benchmark municipal bonds,” said Marcelo Vieira, MSRB Director of Research. “As the self-regulatory organization charged with protecting investors and state and local governments, the MSRB is committed to providing free access to tools and resources on EMMA that enable investors to make informed decisions and can help improve the fairness and efficiency of the market.”

A yield curve represents a set of interest rates for a series of bond maturity dates that, when plotted on a graph, produces a curve. The MSRB offers many yield curves and indices of third-party providers on the EMMA website, which are accessible from EMMA’s Tools and Resources tab. Learn more about yield curves and indices on EMMA.

The MSRB continues to encourage other market data providers to consider offering tools and resources on EMMA in support of greater transparency. The MSRB’s new innovation sandbox, EMMA Labs, offers a platform for testing the utility of various data tools and resources. Click here to learn more about partnering with the MSRB to co-create the future of market transparency.

To keep up with upcoming enhancements to EMMA, subscribe to EMMA Updates emails and view a forward roadmap of transparency and technology initiatives on the MSRB website.


The Municipal Securities Rulemaking Board (MSRB) protects and strengthens the municipal bond market, enabling access to capital, economic growth, and societal progress in tens of thousands of communities across the country. The MSRB fulfills this mission by creating trust in our market through informed regulation of dealers and municipal advisors that protects investors, issuers and the public interest; building technology systems that power our market and provide transparency for issuers, institutions, and the investing public; and serving as the steward of market data that empowers better decisions and fuels innovation for the future. The MSRB is a self-regulatory organization governed by a board of directors that has a majority of public members, in addition to representatives of regulated entities. The MSRB is overseen by the Securities and Exchange Commission and Congress.