Midday Leaders and Laggards: Nasdaq 100

The index, which includes 100 of the largest nonfinancial securities listed on the Nasdaq Stock Market, rose 4.52 points to 1,917.83 just before noon EDT. The broader Nasdaq composite fell 0.87 points to 2,384.87.

The Conference Board said Tuesday its June consumer confidence index came in at 50.4, far below economists' expectation of 56.5. Meanwhile, UPS Inc. cut its guidance due in part to high fuel prices.

Shares of Lam Research Corp. rose $2.87, or 8 percent, to $38.90. A Goldman Sachs analyst upgraded the semiconductor manufacturing equipment maker and added it to a list of preferred stocks Tuesday, citing in part a drop in capital spending and valuation.

Shares of Focus Media Holding Ltd. gained $2.24, or 8.5 percent, to $28.59. The stock touched a 52-week low of $26.23 earlier in the session.

Shares of Sun Microsystems Inc. increased 51 cents, or 4.6 percent, to $11.65. The stock also hit a 52-week low of $11.05 earlier in the day.

On the falling side, shares of Hansen Natural Corp., which makes the Monster Energy drinks, dropped $1.18, or 2.5 percent, to $32.81.

Shares of Sirius Satellite Radio Inc. shed 8 cents, or 4.2 percent, to $1.85.

Shares of Leap Wireless International Inc. lost $1.97, or 3.9 percent, to $48.16. Virgin Mobile USA, a regional wireless carrier like Leap, said Tuesday it would offer an unlimited calling plan for $79.99 per month.