Cisco Systems Inc

1 Min AgoPetrobras shares slide after announcing CEO changeThe U.S.-traded shares of Brazil's Petrobras sank 8% in premarket trading after the company announced a CEO change under political pressure. See Chart...Shares of Petrobras fell…

2 Hours AgoDow closes lowerThe Dow Jones Industrial Average closed lower on Thursday, although all three major indices notched weekly gains.The 30-stock index slid 46 points, or 0.13%, to close at 34,945.57. The S&P 500 added 0.12%…