Nuveen California AMTFree Quality Municipal Income Fund is a closed ended fixed income mutual fund launched by Nuveen Investments Inc The fund is comanaged by Nuveen Asset Management LLC and Nuveen Fund Advisors LLC It invests in the fixed income markets of California United States The fund primarily invests in undervalued municipal securities and other related investments the income which are exempt from regular federal and California income taxes and are rated Baa BBB or higher with an average maturity of 2017 years It employs fundamental analysis with a bottomup approach to create its portfolio The fund benchmarks the performance of its portfolio against the Standard Poors SP California Municipal Bond Index and the SP National Municipal Bond Index It was formerly known as Nuveen California AMTFree Municipal Income Fund Nuveen California AMTFree Quality Municipal Income Fund was formed on November 21 2002 and is domiciled in the United States