EMMA - Electronic Municipal Market Access from the Municipal Securities Rulemaking Board
Disclosure documents going back as early as 1990, including a bond’s official statement, which is a disclosure document similar to a prospectus that includes important characteristics, such as type, yield, maturity, credit quality, call features and risk factors, as well as audited financial statements, material event notices and other continuing disclosures (including ratings changes, principal and interest payment delinquencies and non-payment related defaults).
Historical and real-time transaction price data, including information relating to a type of municipal bond called a “variable rate demand obligation” that resets its interest rate periodically. Investors should be aware that recent price information may not be available for bonds that do not trade frequently.