VettaFi’s Tom Lydon discusses the ETF impact of SVB’s collapse, oral arguments in Grayscale’s SEC lawsuit, year-to-date ETF flows, and a Vanguard milestone.  Roundhill’s Dave Mazza previews their upcoming lineup of “BIG” ETFs, which offers highly concentrated exposure to specific market sectors.  SoFi’s Tobin McDaniel explains their unique approach to ETFs, including the “crowdsourced” SoFi Social 50 ETF (SFYF).