Unlike Invesco QQQ Trust (NASDAQ: QQQ) that is all about the tech stocks changing the world, the S&P 500 is more about what makes the world, as as its members, also held by SPDR S&P 500 ETF Trust (NYSE: SPY) that is designed to follow the index, tell the tale of economic health and stability. SPDR S&P 500 ETF Trust is the largest and oldest ETF in the word. In January, this first U.S. exchange-traded fund turned 30, followed by its tech peer the Invesco QQQ Trust that was launched in 1999 in the