THREE DAYS DOWN: The third decline in as many days means stocks are poised for a loss for the week. The Dow Jones industrial average has fallen in eight of the past 10 days.
GAINERS: Facebook rose 5 percent after being added to the Standard & Poor’s 500 index. Twitter rose almost 6 percent. Hilton Worldwide booked a 7.5 percent gain on its first day of trading.
LOSERS: Lululemon plunged almost 12 percent on disappointing estimates. Coca-Cola Co. was the biggest decliner in the Dow, falling 2.3 percent after Buffalo Wild Wins switched to Pepsi.