The S&P AMT-Free Municipal Series 2020 Index is a market-value-weighted index that seeks to measure the performance of non-callable investment-grade, tax-exempt U.S. municipal bond securities that mature in 2020.
The S&P AMT-Free Municipal Series 2020 Index is a market-value-weighted index that seeks to measure the performance of non-callable investment-grade, tax-exempt U.S. municipal bond securities that mature in 2020.