US STOCKS-Wall St falls on Ukraine unrest, weak China data
* U.S. services sector grows in April at fastest pace in 8 months
* JPMorgan leads banks lower after trading revenue warning
* Pfizer's revenue below expectations, shares fall
* Indexes down: Dow 0.5 pct, S&P 0.3 pct, Nasdaq 0.2 pct (Updates prices, adds comment)
By Rodrigo Campos
NEW YORK, May 5 (Reuters) - U.S. stocks fell on Monday on concern China's economy is continuing to lose momentum and the confrontation between Ukraine and pro-Russia separatists escalated.
Bank shares led the market lower with JPMorgan Chase down 2.3 percent to $54.33. The bank said late on Friday it expects second-quarter revenue from bond and equity trading to decline by about 20 percent from a year earlier.
Geopolitical events kept the market under pressure as Ukrainian forces were ambushed by separatists on Monday, triggering heavy fighting on the outskirts of the rebel stronghold of Slaviansk, a day after a Ukrainian police station in Odessa was stormed.
On the macro front, growth in the U.S. services sector in April rose at the fastest pace in eight months. The data slightly offset news that China's manufacturing sector contracted for a fourth consecutive month in April, adding to concerns over the health of the world's second-largest economy. Continuación...