US STOCKS-Wall St falls as commodities weigh
* Commodity prices weigh on materials, energy shares
* Yellen does not comment on rate hike, economy
* Kohl's quarterly results leads rally in retailers
* PayPal hit by WSJ report on rival service by Apple
* Indexes down: Dow 0.74 pct, S&P 0.61 pct, Nasdaq 0.33 pct (Adds details, changes comment, updates prices)
By Abhiram Nandakumar
Nov 12 (Reuters) - U.S. stocks were lower on Thursday as a fall in commodity prices weighed on energy and materials stocks and investors studied comments by several Federal Reserve policymakers for clues on a widely-expected interest rate hike next month.
The selloff was broad based, with all 10 major S&P sectors in the red, and pushed the Dow and S&P 500 below their 200-day moving averages.
Crude oil prices hit 2-1/2 month lows, while copper and other metal prices tumbled to more than six-year lows, weighed down by a strong dollar, weak Chinese data and concerns about oversupply. Continuación...