Midday Leaders and Laggards: Nasdaq 100

The index, which includes 100 of the largest nonfinancial securities listed on the Nasdaq Stock Market, added 19.40 points to 1,943.73 in midday trading. The broader Nasdaq composite gained 31.84 points to 2,425.85.

The Commerce Department said Thursday that May retail sales rose 1 percent on an apparent boost from tax rebate checks.

Shares of Qualcomm Inc. rose $2.97, or 6.4 percent, to $49.28. The company on Thursday raised its fiscal third-quarter outlook.

Shares of Level 3 Communications Inc. increased 18 cents, or 4.9 percent, to $3.88.

Fiserv Inc. rose $2.04, or 4.2 percent, to $50.13.

On the declining side, shares of beverage maker Hansen Natural Corp. lost $1.08, or 3.2 percent, to $32.72.

Shares of Apple Inc. fell $4.40, or 2.4 percent, to $176.41.

Sirius Satellite Radio Inc. stock slipped 4 cents to $2.42.