MainStay DefinedTerm Municipal Opportunities Fund announced the appointment of Yie-Hsin Hung, chief executive officer of New York Life Investment Management LLC (NYLIM), to the Fund's Board of Trustees. Ms. Hungjoined the Board on December 31, 2016, as a Class III trustee and replaced Christopher O. Blunt.  Also on December 31, 2016, John A. Weisser retired from the Board.  The total size of the Fund's Board of Trustees is currently eight, seven of whom are independent. Yie-Hsin Hung is the chief executive officer of NYLIM, a role she has held since 2015. She joined New York Life in 2010 to run the institutional investments business and was promoted to co-president of NYLIM in 2014.