S&P 500 and Dow each down almost 1% today. A down day, but high tech got hit hard: Facebook down 5% Twitter down 7% Tableau down 6.5% Yelp down 7.5% Report

S&P 500 and Dow each down almost 1% today. A down day, but high tech got hit hard: Facebook down 5% Twitter down 7% Tableau down 6.5% Yelp down 7.5% Reported earnings haven't been great, and the stocks are tumbling down in reaction to the reports (or in preparation for upcoming reports).