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Wall Street is looking for at least one winning session this week, after Thursday's fourth down day in a row. The Dow and S&P 500 stand slightly lower for the year, while the Nasdaq is up nearly 2.7 percent in 2015.
"Mad Money" host Jim Cramer is eyeing the Middle East's impact on oil.
Remember the '90s? BlackBerry released its first phone model in 1999. CNBC takes a look at the company from its founding to the present.