Market summary for today S&P 500 (SPY) -0.81%NASDAQ (QQQ) -0.75%Dow (DIA) -0.56%Russell 2K (IWM) -0.57% Top news for today Facebook COO Sheryl Sandberg Is Leaving The Company After 14 Years: What Investors Need To Know Meta Platforms Inc (NASDAQ: FB) shares turned lower Wednesday after the company's COO Sheryl Sandberg announced her resignation. (4:06pm ET) 5 Things You Might Not Know About Facebook's Mark Zuckerberg: The IPO/Wedding And More The founder of one of the most popular companies of the past 50 years was fascinated with computers and inventing programs at an early age. This helped make him one of the most well-known people in the world. (1:02pm ET) Stock Wars: Delta Air Lines Vs. Alaska Air Group Benzinga’s weekly Stock Wars matches up two leaders in a major industry sector with the goal of determining which company is the better investment. (11:39am ET)...