Brian Hartigan, Global Head of ETFs and Index Investments at Invesco, shares his expertise on ETF and index investing strategies. He dives into the history and evolution of the QQQ and RSP ETFs, emphasizing their benefits for both retail and institutional investors. The discussion also highlights how market corrections can be strategic opportunities. Hartigan provides insights on navigating current volatility, including the tactical use of ETFs and the importance of diversification amidst economic challenges and geopolitical shifts.