U.S. markets opened higher on Friday on investor optimism that tensions in the Ukraine are easing. Before the bell, the government reported the Producer Price Index figures for July were in line with what economists expected rising 0.1% for July. The Core measure, stripping out food and fuel increased by 0.2%. New York State Factory growth slowed in August. The Empire State Index fell from a 4-year high last month. Monster Beverage (MNST) is getting a boost from Coca-Cola (KO). Coke is taking a 16.7% stake in the company for more than $2 billion. JC Penny (JCP) was the one of the most active stocks in pre-market trading. The stock is up after reporting its quarterly loss was less than expected. The department-store chain hasn’t had an annual profit in three years. Supervalu (SVU) may have been hit with a data breach at its stores. The grocery store chain says hackers may have stolen customers’ credit card information at possibly more than 200 stores spanning five states and an investigation is underway. TheStreet's Susannah Lee reports from New York.