By Coulter Regal, CFA Associate Product Manager Big tech has been a key driver of broad market returns over the last decade, becoming large weights in major indices. This concentration risk may now spell trouble. Continuing the theme of volatility that has persisted so far this year, U.S. equity markets rebounded sharply in October off [...] The post Moat Investing: Is the Party Over for Big Tech? appeared first on ETF Trends .