CNBC'S Bob Pisani spoke with Renaissance Capital Chairman and co-founder Kathleen Smith, Defiance ETFs President, Paul Dellaquila and ETF Trends CIO, Dave Nadig. They discussed major household names, Airbnb and Doordash, going public this week, what’s still ahead for 2021 and how they match up against the so-called “SPAC attack” we’ve already seen in 2020. In the markets 102 segment Bob continues the conversation with Defiance ETFs President, Paul Dellaquila.