David M. Blitzer is a managing director and chairman of the S&P Index Committee with responsibility for security selection, index analysis and management. He is a member of Standard & Poor's Investment Policy Committee.
Sam Stovall is Chief Investment Strategist, Standard & Poor’s Equity Research. As chief investment strategist, Sam Stovall serves as analyst, publisher and communicator of S&P’s outlooks for the economy, market, sectors and stocks.