Shares of

Hexcel

(HXL) - Get Report

were among the

NYSE's

losers Tuesday, falling 4% after the company's first-quarter results fell short of Wall Street's expectation.

The company, a maker of lightweight materials used in the commercial aerospace and defense industries, earned $14.5 million, or 15 cents a share, on revenue of $307 million. Analysts polled by Thomson First Call expected earnings of 19 cents a share and revenue of $314.9 million. A year earlier, the company posted a loss of $24.7 million, or 46 cents a share, on revenue of $290.6 million.

Looking ahead, Hexcel sees 2006 constant-currency sales growth of about 10%. Shares were trading down 96 cents to $23.05.

Shares of

Mueller Industries

(MLI) - Get Report

rose 5% after the maker of copper, brass and plastic construction parts reported better-than-expected first-quarter results. The company earned $33.4 million, or 90 cents a share, on revenue of $551 million. Two analysts had an average estimate for earnings of 64 cents a share, while a single analyst projected revenue of $485 million.

In last year's first quarter, Mueller earned $15.2 million, or 41 cents a share, on revenue of $401.7 million. "Margins in our core product lines remained on a good track, which continued the positive trend reflected in the fourth quarter of last year," the company said. "We also benefited from our operations in Europe and Asia, which performed well." Shares were trading up $1.75 to $39.87.

Smurfit-Stone Container

( SSCC) sank 10% after the paperboard and packaging company posted a wider-than-expected first-quarter loss. The company's loss available to common shareholders swelled to $64 million, or 25 cents a share, from $19 million, or 7 cents a share, a year earlier. The loss included gains of 6 cents a share related to a divestiture and a restructuring charge of 2 cents a share. Revenue rose to $2.13 billion from $2.09 billion. Analysts, on average, expected a loss of 19 cents a share and revenue of $2.08 billion. The company said results were hurt by higher costs, particularly energy and freight, as well as lower containerboard prices. Shares fell $1.41 to $13.22.

Shares of

Lexmark International

(LXK)

rose 3% after the printer maker posted first-quarter results that easily topped expectations. The company earned $86.2 million, or 78 cents a share. Excluding items, the company earned $1.03 a share, above analysts' forecast of 69 cents. Revenue totaled $1.28 billion, compared with Wall Street's estimate of $1.22 billion. During the year-earlier quarter, the company earned $123.9 million, or 96 cents a share, on revenue of $1.36 billion.

For the second quarter, Lexmark sees earnings of 70 cents to 80 cents a share, excluding items. The company predicts that sales will decline in the low- to mid-single digit range. Analysts project earnings of 75 cents a share and revenue of $1.19 billion. Shares were trading up $1.51 to $48.21.

Smith International

( SII) rose modestly after the maker of drilling equipment posted first-quarter results that topped expectations. The company earned $107.2 million, or 53 cents a share, up from $66.2 million, or 32 cents a share, a year earlier. Revenue rose to $1.68 billion from $1.29 billion. Analysts expected earnings of 48 cents a share and revenue of $1.6 billion.

Looking ahead, Smith International raised its 2006 earnings forecast to $2.15 to $2.25 a share from an earlier view of $2 to $2.10 a share. Analysts project earnings of $2.11 a share. Shares were trading up 19 cents to $43.40.

Shares of

Commercial Metals

(CMC) - Get Report

rose 3% after the steel company announced a 2-for-1 stock split and raised its dividend. The split will be payable May 22 to shareholders of record on May 8.

As for the dividend, the company plans to pay a quarterly rate of 6 cents a share, after taking into account the effect of the stock split, which represents a 20% hike. The new rate will be effective with the next dividend in July. Shares were trading up $1.70 to $53.68.

NYSE volume leaders included

Lucent Technologies

( LU), down 4 cents to $2.93;

Ford

(F) - Get Report

, up 6 cents to $7.02;

AT&T

(T) - Get Report

, up 25 cents to $25.78;

Valero Energy

(VLO) - Get Report

, down 80 cents to $68.30;

Citigroup

(C) - Get Report

, down 27 cents to $47.73;

EMC

(EMC)

, down 12 cents to $13.35; and

General Electric

(GE) - Get Report

, up 8 cents to $34.01.

Nasdaq

volume leaders included

Sun Microsystems

(SUNW) - Get Report

, up 8 cents to $5.06;

Level 3 Communications

(LVLT)

, up 62 cents to $5.54;

Oracle

(ORCL) - Get Report

, up 18 cents to $14.66;

Intel

(INTC) - Get Report

, down 10 cents to $18.81;

Cisco

(CSCO) - Get Report

, up 14 cents to $20.43;

JDSU

(JDSU)

, up 2 cents to $3.59;

Microsoft

(MSFT) - Get Report

, up 9 cents to $27.20;

Dell

(DELL) - Get Report

, down 23 cents to $26.24; and

Sirius Satellite

(SIRI) - Get Report

, up 6 cents to $4.87.