Contents:2:30 - Background of Scott Helfstein, Executive Director of Thematic Investing at ProShares.3:30 - What is thematic investing, and what qualifies something as a thematic exchange traded fund.7:00 - Does having to put the funds in an index tie an investor's hands?10:45 - Breakdown of Proshares thematic ETFs that have developed the most investor traction.19:45 - How important is thematic investing to the growth of Proshares business, and are there any future thematic ETFs that might come to market by ProShares?27:00 - How do you avoid making a thematic ETFs theme too narrow where it is unlikely to resonate with investors?32:15 - Where do thematic ETFs fit into an investor's portfolio, and how should exposure be looked at?  38:00 - What does the future hold for the thematic investing space?Learn more about your ad choices. Visit megaphone.fm/adchoices