First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund Declares Quarterly Distribution Payable on December 31, 2015

First Trust Exchange-Traded AlphaDEX Fund - First Trust Mid Cap Core AlphaDEX Fund declared quarterly distribution of $0.1606 per share, payable on December 31, 2015. Record date is December 28, 2015. Expected ex-dividend date is December 23, 2015.