On this week's episode of Let's Talk ETFs, we have a returning guest joining us. Scott Helfstein, Executive Director of Thematic Investing at ProShares sits back down with Seeking Alpha to discuss the updates and changes to the thematic exchange traded fund marketplace.Tickers: (ONLN), (EMTY), (PAWZ), (MAKX), (CTEX), (DAT)Show Notes:2:45 - Introduction4:00 - What's new with Proshares since we last spoke?6:45 - Discuss & break down Smart Factories ETF, MAKX, 13:30 - Discuss & break down Cleantech ETF, CTEX.18:30 - Discuss & break down Big Data ETF, DAT.23:45 - ProShares three other funds set to list around nanotechnology, smart materials and on-demand.28:00 - Proshares ETFs forward looking to changes in global economy30:30 - Anything else on the thematic horizon for the "next thing"?36:30 - How is the market reacting to the thematic ETF space?Learn more about your ad choices. Visit megaphone.fm/adchoices