US STOCKS-Wall St ends sharply higher on tech, Ukraine deal By: Reuters: Company News February 12, 2015 at 16:23 PM EST * Indexes up: Dow 0.5 pct, S&P 0.8 pct, Nasdaq 0.9 pct (Updates to close) Read More >> Related Stocks: American Express Cisco Systems Costco Wholesale Expedia Tesla, Inc.