US STOCKS-Wall St opens Christmas week with strong gains
* Disney loses earlier gains
* Juniper down on probe into code
* Apple gives biggest boost to indexes
* Indexes up: Dow 0.33 pct, S&P 0.43 pct, Nasdaq 0.66 pct (Updates to early afternoon)
By Abhiram Nandakumar
Dec 21 (Reuters) - U.S. stock indexes looked set to snap a two-day losing streak on Monday, helped by gains in tech stocks, with investors taking in stride a continued slump in oil prices.
Trading volumes are expected to be relatively light this week, with stock markets operating a shortened session on Thursday and closing on Friday for Christmas.
Wall Street slumped on Thursday and Friday as weak crude prices dampened the optimism sparked by the first Federal Reserve interest rate hike in nearly a decade.
Oil prices have been sliding under continued pressure from global oversupply and tepid demand. Continuación...