ETF Edge on Roundhill's Memory ETF surpassing $6 billion in record time
Drew Pettit, Citi research director of U.S. Equity Strategy and ETF Strategy, and Dave Mazza, Roundhill Investments CEO, join CNBC's Contessa Brewer on 'ETF Edge' on the memory chip demand, the strategy behind Roundhill's Memory ETF, prediction markets ETFs and more.

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