Apr 21: S&amp;P 500 -3%, DJIA -3%, NASDAQ Composite -3% on oil price crash jitters; Q1 Netflix Earnings video 6pm EDT, Q1 was biggest quarter ever for new subscribers https://t.co/vHr4MsvSaA #SPX $SPY #DJIA #NASDAQ #stocks #StockMarket #investors #investing #Netflix https://t.co/qhB9k3mznj