Friday is what's known as a triple witching day–the once-a-quarter phenomenon when stock options, stock index futures, and stock index options all expire on the same day. Some investors are fretting ...
Wall Street hit the brakes on its post-Fed rally to start a triple-witching Friday session. The Dow was down 46 points, or 0.1%, while the S&P 500 was down 0.2%. The Nasdaq Composite slipped 0.1%.