The Nasdaq composite index has notched up its longest winning streak in more than three years

It follows strong gains in factory orders and worker productivity which have fuelled investor expectations of a rebounding US economy. Other market indicators also advanced, reaching heights not seen in more than a year. The Nasdaq climbed 16.08, or 0.9%, to 1,868.98, for a seven-day gain of 104 points. The last time the tech-focused index notched seven straight days of gains was in February 2000. Today's close was also the highest level since March 19, 2002 when the Nasdaq stood at 1,880.87. The blue chips also rose. The Dow Jones industrial average advanced 19.44, or 0.2%, to close at 9,587.90, for a five-day gain of 254 points. The blue-chip average is at its highest level since June 18, 2002.