Updated from 11:25 a.m. EDT

Shares of

West Marine

(WMAR)

were among the

Nasdaq's

losers Thursday, falling 13.8% after the company posted weak first-quarter results and warned that full-year results would be significantly below expectations.

The boating supplies retailer posted a loss of $5.5 million, or 26 cents a share, on sales of $125.3 million. Analysts polled by Thomson First Call were expecting a smaller loss of 24 cents a share on sales of $125.6 million. In early April, the company said that it would post a loss of 24 cents to 25 cents a share on sales of $125.6 million.

"The first-quarter results are disappointing, primarily because boating season activity was delayed in markets from the Mid-Atlantic states up into the Northeast and across the Great Lakes," the company said.

In addition to its latest results, the company also unveiled a series of initiatives designed to improve inventory turnover, increase comp-store sales and improve operations. As a result of the initiatives, the company now expects 2005 earnings of $1.10 to $1.15 a share on sales of $717 million to $722 million. Analysts had been expecting earnings of $1.43 to $722.3 million. Shares traded down $2.67 to $16.73.

Molson Coors

(TAP) - Get Report

fell 18.5% after the brewer posted a first-quarter loss. The company posted a loss of $46.5 million, or 74 cents a share, on sales of $1.06 billion. Excluding merger-related charges of $40.7 million, the company would have reported a loss of $5.1 million. Analysts were expecting a profit of 36 cents a share on sales of $1.25 billion. Molson said that its latest results were hurt by lower sales volume in key markets. Shares traded down $14.30 to $63.

Shares of

Newell Rubbermaid

(NWL) - Get Report

fell 0.9% after the company reported mixed first-quarter results and said that second-quarter earnings would be below expectations. Excluding items, the consumer products company earned $86.9 million, or 32 cents a share, on sales of $1.39 billion. Analysts were expecting earnings of 26 cents a share on sales of $1.5 billion. A year ago the company posted earnings of $50.7 million, or 18 cents a share, on sales of $1.49 billion. Looking ahead, Newell forecast second-quarter earnings of 28 cents to 32 cents a share, below the 36 cents a share that analysts had been expecting. Shares traded down 19 cents to $21.24.

Bunge

(BG) - Get Report

rose 5% after the company posted first-quarter earnings that topped expectations. Excluding one-time gains, the company earned $79 million, or 66 cents a share, on sales of $5.45 billion. Analysts were expecting earnings of 49 cents a share on sales of $5.71 billion. A year ago the company earned $67 million, or 62 cents a share, on sales of $5.74 billion. Looking ahead, the agribusiness and food company said that it expects to post $2005 earnings of $4.06 to $4.23 a share, including a 16-cent gain related to a reversal of its allowance against recoverable taxes. Without the gain, the company expects to post earnings of $3.90 to $4.07 a share. Analysts are expecting earnings of $3.98 a share on sales of $25.6 billion. Shares traded up $2.66 to $56.32.

Shares of

CSX

(CSX) - Get Report

rose 1.2% after the railroad company posted strong first-quarter results that beat expectations. The company earned $579 million, or $2.56 a share, on sales of $2.1 billion. Earnings included a gain of $425 million, or $1.88 share. Without the gain, the company would have earned 68 cents a share. Analysts were expecting earnings of 45 cents a share on sales of $2.06 billion. Shares traded up 48 cents to $39.83.

NYSE

volume leaders included

Exxon Mobil

(XOM) - Get Report

, down $2.38 to $56;

Nortel Networks

( NT), down 23 cents to $2.50;

Lucent Technologies

( LU), down 7 cents to $2.44;

Pfizer

(PFE) - Get Report

, down 23 cents to $26.69;

General Electric

(GE) - Get Report

, down 73 cents to $35.67;

Time Warner

(TWX)

, down 40 cents to $16.86;

Corning

(GLW) - Get Report

, up 23 cents to $13.80; and

Elan

(ELN)

, up 44 cents to $4.69.

Nasdaq volume leaders included

Microsoft

(MSFT) - Get Report

, down 54 cents to $24.45;

Sirius Satellite Radio

(SIRI) - Get Report

, up 6 cents to $4.73;

Intel

(INTC) - Get Report

, down 32 cents to $23.19;

Cisco Systems

(CSCO) - Get Report

, down 11 cents to $17.14;

Oracle

(ORCL) - Get Report

, down 28 cents to $11.62;

Sun Microsystems

(SUNW) - Get Report

, down 10 cents to $3.44;

Ciena

(CIEN) - Get Report

, up 8 cents to $2.10;

Sanmina-SCI

(SANM) - Get Report

, down 71 cents to $3.79;

Applied Materials

(AMAT) - Get Report

, down 5 cents to $14.88; and

Martek Biosciences

( MATK), down $27.59 to $32.49.