That's because traders are generally flat at the end of the day. They don't have 30 years to wait for that knife to land on a rocketship and end up at the moon.
In 2008 I watched the market drop 5% every day for a week. That's blood in the streets. (And by Thur, it pretty much didn't matter what you bought, it was going to do great)
As of right now, the S&P 500 is down a little over 2%, that's pretty normal. I'm not even sure this is a paper cut.
