Updated from 11:33 a.m. EDT

Shares of Allied Waste ( AW) were among the NYSE's losers Wednesday after the company posted weaker-than-expected second-quarter earnings and sales, and trimmed its full-year outlook.

Excluding items, the waste disposal company earned 15 cents a share on sales of $1.36 billion. Analysts polled by Thomson First Call had expected it to earn 18 cents a share on sales of $1.39 billion. A year ago it earned 10 cents a share on sales of $1.34 billion. Looking ahead, Allied Waste expects full-year operating income before depreciation and amortization to be 3% to 4% below its original forecast of $1.6 billion. Shares traded down $2.55, or 20.8%, to $9.69.

Royal Caribbean Cruises ( RCL) rose after it reported stronger-than-expected second-quarter earnings and sales and raised its full-year outlook. The cruise company earned 59 cents a share during the second quarter on sales of $1.14 billion. Analysts had expected it to earn 53 cents a share on sales of $1.1 billion. Looking ahead, the company expects full-year earnings of $2.25 to $2.40 a share, up from its previous guidance of $2.10 to $2.30 a share. Analysts were expecting earnings of $2.23 a share. Shares of Royal Caribbean traded up $1.57, or 3.8%, to $42.76.

Shares of Louisiana-Pacific ( LPX) rose after the company swung to a second-quarter profit that easily beat expectations. Excluding items, the construction materials company earned $1.72 a share on sales of $825.3 million. Analysts had expected it to earn $1.58 a share on sales of $745.3 million. The company's results benefited from strength in its wood, siding and decking businesses. Shares of Louisiana-Pacific traded up $1.52, or 7%, to $23.38.

Lifetime Hoan ( LCUT) fell after it reported weak second-quarter results and trimmed its full-year earnings outlook. The housewares distributor earned 2 cents a share in the second quarter on sales of $33 million. Analysts had expected it to earn 10 cents a share on sales of $38.7 million. Looking ahead, the company now expects to report higher full-year sales of $202 million to $212 million, reflecting the acquisition of Excel Importing. Earnings, however, are expected to be 95 cents to $1.10 a share, down from its previous guidance of 98 cents to $1.13. Analysts are looking for full-year earnings of $1.07 and sales of $203.2 million. Shares of Lifetime Hoan traded down $3.80, or 18%, to $17.30.

Shares of Encore Wire ( WIRE) fell after the company reported weaker-than-expected second-quarter earnings and sales. The McKinney, Texas-based wire company earned 46 cents a share on sales of $138.1 million. Analysts had expected it to earn 78 cents a share on sales of $156.8 million. The company said that price discounting and cautious purchasing by customers contributed to the weaker-than-expected second-quarter results. Shares of Encore Wire traded down $6.10, or 25%, to $18.35.

NYSE volume leaders included Lucent ( LU), down 1 cent to $3.07; Nortel Networks ( NT), up 8 cents to $3.50; Motorola ( MOT), up 71 cents to $16.19; General Electric ( GE), up 49 cents to $33.29; and Time Warner ( TWX), down 26 cents to $16.65.

Nasdaq volume leaders included Intel ( INTC), up 19 cents to $23.46; Microsoft ( MSFT), up 14 cents to $28.58; Cisco ( CSCO), down 21 cents to $20.50; Oracle ( ORCL), down 13 cents to $10.25; and Sun Microsystems ( SUNW), down 8 cents to $3.65.

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