The Nasdaq Composite Index rose 19.67 , or 1.3 percent , to 1523.71 , its highest since June 18 .
The Nasdaq Composite Index rose 19.67 , or 1.3 percent , to 1523.71 , its highest since June 18 .
The Nasdaq Composite Index lost 16.95 , or 1.1 percent , to 1507.76 , its first slide in five days .