US STOCKS-Wall St falls 3rd session, led by tech, discretionaries
* Energy shares rebound
* Indexes: Dow down 0.7 pct, S&P down 0.9 pct, Nasdaq down 1.2 pct (Updates to close)
By Caroline Valetkevitch
NEW YORK, Dec 16 (Reuters) - U.S. stocks fell for a third day in a volatile session Tuesday, led by declines in consumer discretionary and technology shares, while another drop in the Russian rouble added to worries about the global economy.
Energy shares rebounded, keeping the S&P 500 and Dow mostly in positive territory until a bout of late-day selling took indexes lower. The S&P 500 moved more than 44 points from its high of the day to its low, while the CBOE Volatility index jumped 15.4 percent.
The Russian rouble hit new lows against the dollar following oil's extended selloff, before rebounding. Brent and U.S. crude oil's more than 50 percent drop since June have put global demand at the forefront of concerns for investors.
"The market is kind of in this push-pull. Traditionally, this time of year is a strong season. People buy stocks that have done well so you get this bump up," said Daniel Morgan, senior portfolio manager at Synovus Trust Company in Atlanta.
"But you've got the market being pulled back by the prices in oil continuing to fall and the ramifications associated with that."
Shares of Microsoft, down 3.2 percent at $45.16, and Amazon, down 3.6 percent at $295.06, were the biggest drags on the S&P 500, while energy shares gave the index its biggest boost. The energy index ended up 0.7 percent but is down about 16.6 percent for the year. Continuación...