In midafternoon trading , the Nasdaq composite index was up 8.34 , or 0.5 percent , to 1,790.47 .
In midafternoon trading , the Nasdaq composite index was up 8.34 , or 0.5 percent , to 1,790.47 .
The Nasdaq Composite Index .IXIC dipped 8.59 points , or 0.48 percent , to 1,773.54 .