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