U.S. stocks posted their largest percentage decline of the year on Friday, taking a break from the strong gains seen in the past six weeks. Friday morning, all three indices tumbled more than 1 percent to their lowest levels of the trading session — a decline the indices have only seen a handful of times this year. In fact, the Dow has only dropped more than 1 percent on an intraday basis four times in 2012 (three for the S&P 500 and Nasdaq).
Despite their earlier losses, the Dow and S&P 500 managed to settle off their lows, once again, avoiding to close down more than 1 percent for the first time in 2012. On the other hand, it was the first weekly decline for the S&P 500 and Nasdaq Composite.Here is a look at the best and worst performing stocks this week.