Di Yao has joined in Putnam Management since 2005 and has become an analyst of The Putnam Advisory Company since 2008.

Mr. O’Brien is Assistant Director of Equity Research, providing oversight and strategic direction to Putnam's team of equity analysts. In addition, he is a portfolio manager of Putnam's research strategy and an analyst in the Equity Research group, focusing on the U.S. technology sector. He is responsible for conducting fundamental analysis and valuation of companies in the semiconductor, hardware, and software industries, and for making buy/sell recommendations. Mr. O'Brien has been in the investment industry since he joined Putnam in 2011. Previously at Putnam, he served as an Investment Associate on the U.S. consumer team. Mr. O'Brien earned a B.S. in Business Administration from Babson College.