U.S. stocks tumble Thursday - UPI.com NEW YORK, June 21 (UPI) -- U.S. stock markets tumbled Thursday despite a slight drop in first-time unemployment benefit claims. By Thursday morning any move toward higher ground had faded. The National Association of Realtors reported sales of existing homes dipped 1.5 percent in May compared to April. In mid-afternoon trading on Wall Street, the Dow Jones industrial average dropped 195.04 points, or 1.52 percent, to 12,629.35. The Nasdaq composite index gave up 56.32 points, 1.92 percent, to 2,874.13. The Standard and Poor's 500 lost 24.23, or 1.79 percent, to 1,331.46. The benchmark 10-year treasury note rose 19/32 to yield 1.599 percent. The euro fell to $1.2558 from Wednesday's $1.2706. Against the yen, the dollar rose to 80.20 yen from Wednesday's 79.55 yen. In London, the FTSE 100 index shed 0.99 percent, 55.93, to 5,566.36.