Core Insights - Most investors benchmark their market performance against two primary indices: the SPDR S&P 500 ETF Trust and the Invesco QQQ Trust [1] Group 1 - The SPDR S&P 500 ETF Trust (NYSE:SPY) serves as a key performance indicator for investors tracking the broader market [1] - The Invesco QQQ Trust (NASDAQ:QQQ) is utilized by investors to gauge performance in the technology sector [1]