US STOCKS-Wall St falls for 2nd day; small caps slide again
* Wal-Mart profit falls as harsh winter hampers shoppers
* Russell 2000 briefly off more than 10 pct from high
* J.C. Penney shares jump after the bell
* Dow off 1 pct; S&P 500 down 0.9 pct; Nasdaq down 0.8 pct (Updates close with J.C. Penney, Nordstrom shares up after the bell, adds volume)
By Caroline Valetkevitch
NEW YORK, May 15 (Reuters) - U.S. stocks fell on Thursday, giving the Dow and the S&P 500 their worst declines in more than a month, as small-cap shares extended their retreat and Wal-Mart results disappointed.
The Russell 2000 index of small-cap stocks lost 0.7 percent, well off its session low where it hit correction territory, down more than 10 percent from its early March record close of 1,208.65. It ended down 9.3 percent from that high.
Thursday marked the second day of losses for the three major U.S. stock indexes. Volume picked up on S&P 500 e-mini futures , underscoring some views that the selling may not be over. At 2.2 million, e-mini futures volume was well above the 1.5 million daily average for the past year.
Stocks are "starting to form a little bit of a ceiling," said Uri Landesman, president of Platinum Partners in New York, Continuación...