Since the S&P 500 hit a record price of 1,729.86 on Sept. 19, volatility is up more than 50 percent. While the market retracts from its highs, some of this year's winners are bearing the brunt of the losses.
Case in point: Vertex Pharmaceuticals. The stock gained more than 90 percent before pulling back almost 20 percent from its 52-week high. While investors have benefited handsomely year-to-date, some of those gains are evaporating. Similarly, First Solar is trading more than 28 percent below its 52-week high in May, after nearly doubling from the beginning of the year through May.
Other major indexes are also feeling the heat. The Nasdaq 100 has fallen 2.7 percent in the past two days, its worst two-day loss in over three months, while the Dow is off by 930 points, or 6 percent, from its all-time high of 15,709.58 in September.
Some Wall Street darlings, including Facebook, Netflix, Priceline and Yahoo, are down over 8 percent for the week. Biotech is also getting hammered. The NYSE Arca Biotech Index fell by 4.5 percent on Tuesday—its worst percentage drop in two years. One reason for the sharp decline is that these stocks have been hot performers, with S&P 500 biotech companies up about 60 percent in 2013.
Here are other names that had phenomenal runs this year but are now pulling back.