b'Stocks closed at the lows of the session after another painful day on Wall Street. Phil Camporeale from J.P. Morgan Asset Management and Eric Johnston from Cantor Fitzgerald square off in a bull-bear debate to discuss whether or not the selloff is a buying opportunity. Interactive Brokers chairman Thomas Peterffy weighs in on how retail investors are navigating the volatility. And as the Nasdaq paces for its worst month since 2008, Angelo Zino from CFRA breaks down what we\\u2019ve learned from big tech earnings, and what to expect when the rest of the mega-caps report results.'