US STOCKS-Wall St on track for four-day rally; tech lifts Dow By: Reuters: Company News December 22, 2014 at 14:50 PM EST * Indexes up: Dow 0.6 pct, S&P 0.1 pct, Nasdaq 0.2 pct (Updates prices) Read More >> Related Stocks: AbbVie Achison Inc Chevron Corp Cisco Systems Express Scripts Holding Gilead Sciences Halliburton Co Intel Corp International Business Machines