Shares of

SunPower

(SPWR) - Get Report

were among the

Nasdaq's

winners Tuesday, rising 9% after the solar-electricity company reaffirmed its second-quarter guidance.

The company continues to expect adjusted earnings, which exclude certain items, of 5 cents to 7 cents a share. The company also backed its forecast for revenue of $50 million to $52 million. Analysts polled by Thomson First Call expect earnings of 6 cents a share and revenue of $51.1 million. SunPower shares were trading up $2.62 to $32.07.

Hansen Natural

( HANS) rose 2% after the beverage maker signed an agreement with Cadbury Bebidas, a Mexican beverage distributor, for the distribution of Hansen's Monster Energy drinks in Mexico. "Cadbury Bebidas is a professionally managed and well-established company with extensive distribution arrangement throughout Mexico," Hansen said. Shares were up $4.26 to $182.60.

Shares of

Tempur-Pedic International

(TPX) - Get Report

rose 2% after the mattress maker boosted its stock buyback plan by $40 million, bringing its total authorization to $220 million. Since the beginning of the buyback, the company has repurchased more than 15 million shares at a cost of $180 million. "We continue to believe the share-repurchase program is an attractive vehicle to significantly increase shareholder value over the long term, particularly in light of the strong cash flow generated by the company's business model," Tempur-Pedic said. Shares were trading up 31 cents to $13.86.

Monro Muffler

(MNRO) - Get Report

fell 8% after the auto repair-services company posted in-line fiscal fourth-quarter earnings but issued disappointing first-quarter earnings guidance. The company earned $3.2 million, or 21 cents a share, on revenue of $88.3 million. Excluding stock-based compensation costs, the company earned $3.5 million, or 23 cents a share, matching analysts' mean estimate. During the year-earlier quarter the company earned $2.8 million, or 19 cents a share, on revenue of $81.1 million.

Looking ahead, Monro sees first-quarter earnings of 45 cents to 48 cents a share, with a same-store sales decrease of 2% to 3%. A single analyst is projecting earnings of 63 cents a share. For the full year, the company sees earnings of $1.68 to $1.76 a share on revenue of $410 million to $420 million. Two analysts have an average estimate for earnings of $1.83 a share and revenue of $409 million. Shares were trading down $3.11 to $33.75.

Shares of

Getty Images

( GYI) rose 1% after the supplier of stock photographs and images boosted its share-repurchase plan by $100 million, bringing its total buyback plan to $250 million. As a result of the increased buyback plan, the company said it plans to sell some of its short-term investments that are in the red. The company will take a pretax charge of about $4 million during the second quarter related to the losses.

Getty also said it plans to permanently exit some of its New York facilities after a sublease expires in February 2007. The facilities, which have a lease agreement that runs through March 2015, are currently being subleased to another party through February. The company plans to record a pretax charge of about $19 million during the second quarter related to the move. Getty said the charge is consistent with its previously announced estimate. Shares were trading up 95 cents to $65.60.

NYSE

volume leaders included

Nabors Industries

(NBR) - Get Report

, up 46 cents to $36.07;

Lucent Technologies

( LU), up 5 cents to $2.57;

Pfizer

(PFE) - Get Report

, up 11 cents to $23.83;

Cameron

(CAM)

, up $2.46 to $48.11;

General Electric

(GE) - Get Report

, up 7 cents to $34.14;

Citigroup

(C) - Get Report

, up 25 cents to $49.09;

Exxon Mobil

(XOM) - Get Report

, up 75 cents to $61.53; and

Time Warner

(TWX)

, up 5 cents to $17.45.

Nasdaq volume leaders included

Sun Microsystems

(SUNW) - Get Report

, down 16 cents to $4.38;

JDSU

(JDSU)

, down 12 cents to $2.90;

Microsoft

(MSFT) - Get Report

, up 37 cents to $23.25;

Intel

(INTC) - Get Report

, up 5 cents to $18.06;

Cisco Systems

(CSCO) - Get Report

, up 25 cents to $20.85;

Apple Computer

(AAPL) - Get Report

, up 92 cents to $64.30; and

Yahoo!

(YHOO)

, up 95 cents to $31.41.