Matt Kaufman, head of ETFs at Calamos Investments, discusses the firm's new "structured protection ETFs," in which a fund owner gets exposure to a market index but gives up some upside potential in exchange for protection against losses. The funds sound like a substitute for stocks but, akin to equity index products and other financial hybrids built to avoid losses, are a more suitable substitute for bank savings accounts and other cash investments. Kaufman says the products are a reflection of the times, where many investors are tired of the volatility and nervous for the future and want some assurance that they will not lose money in the market. Also on the show, Christian Munafo, chief investment officer at Liberty Street Advisors -- which runs the Private Shares Fund -- discusses how late-stage private venture companies are a real opportunity now, coming off of two years in which private shares have struggled and the market for taking those companies public has been sluggish. He also discusses Destiny Tech 100, an exchange-traded closed-end portfolio that has been trading like a meme stock, with massive gains -- but also nose-bleed falls -- since its debut in March. Plus, Bryan Armour, director of passive strategies research at Morningstar, discusses ETFs in the Market Call.