Gary Antonacci is a Harvard MBA who has been in the investment industry since the 1970's, managing money as a hedge fund manager, trader, researcher, etc. He semi-retired after about ten years and has continued to be active in investment management ever since. Several years ago he began to create systems to do momentum investing, and has now written a book on his methodology, Dual Momentum Investing. His system was awarded First Place in the Wagner Award competition by the National Assoc of Active Investment Managers. Any investor interested in determining when to be in or out of various markets will find this interview to be very interesting.