Updated from 11:52 a.m.

Shares of

Corinthian Colleges

(COCO)

were among the

Nasdaq's

losers Wednesday, falling 16.9% after the company posted third-quarter earnings that matched expectations but warned that fourth-quarter earnings would fall short of Wall Street expectations.

The for-profit education company posted earnings of $22.4 million, or 24 cents a share, on sales of $254 million during the third quarter. Analysts polled by Thomson First Call were expecting earnings of 24 cents a share on sales of $259.6 million. A year ago the company earned $21.2 million, or 23 cents a share, on sales of $217.3 million. Looking ahead, Corinthian forecast fourth-quarter earnings of 20 cents to 22 cents a share, below the 24 cents a share that analysts had been expecting. Shares traded down $2.85 to $14.03.

Select Comfort

(SCSS)

rose 14.7% after the company posted first-quarter earnings that topped expectations. The mattress maker posted earnings of $8.6 million, or 22 cents a share, on sales of $172.8 million. Analysts were expecting earnings of 19 cents a share on sales of $156.9 million. A year ago the company earned $7.3 million, or 18 cents a share, on sales of $140 million. Looking ahead, Select Comfort upped its 2005 forecast, saying that it now expects earnings of 98 cents to $1.06 a share. Analysts had been expecting earnings of 99 cents a share. Select Comfort also said that it could exceed its target growth rate of 18% to 20%. Shares traded up $2.91 to $22.74.

Shares of

Newmont Mining

(NEM) - Get Report

fell 6.3% after the company posted first-quarter earnings that fell well below expectations. The gold producer posted earnings of $84 million, or 19 cents a share, on sales of $961 million. Results included charges and gains that added $30 million, or 7 cents a share. Without those one-time items, the company would have posted earnings of 12 cents a share. Analysts were expecting earnings of 30 cents a share on sales of $1.1 billion. Newmont said that rising input commodity prices adversely impacted operating costs during the quarter. Shares traded down $2.55 to $37.70.

Tupperware

(TUP) - Get Report

rose 9.2% after the maker of Tupperware products posted first-quarter earnings that easily beat expectations. The company earned $23.9 million, or 40 cents a share, on sales of $326.4 million. Analysts were expecting earnings of 25 cents a share on sales of $310 million. A year ago the company earned $14.5 million, or 25 cents a share, on sales of $300.9 million. Looking ahead, Tupperware forecast second-quarter earnings - excluding items - of 42 cents to 45 cents a share. Sales, meanwhile, are expected to grow by 4% to 6%. Analysts are expecting earnings of 43 cents a share. Shares traded up $1.83 to $21.63.

Shares of

VCA Antech

(WOOF) - Get Report

rose 9.3% after the animal health care company posted first-quarter earnings that were better than expected. The company posted earnings of $17.2 million, or 21 cents a share, on sales of $186.9 million. Analysts were expecting earnings of 19 cents a share on sales of $183.4 million. A year ago the company earned $14.7 million, or 18 cents a share, on sales of $144.4 million. Looking ahead, VCA now expects full-year earnings of 87 cents to 89 cents a share on sales of $779 million to $788 million. Previously, the company expected earnings of 85 cents to 87 cents a share on sales of $773 million to $786 million. Analysts had been expecting earnings of 87 cents a share on sales of $782.4 million. Shares traded up $1.99 to $23.49.

NYSE

volume leaders included

Corning

(GLW) - Get Report

, up $1.01 to $13.57;

Lucent Technologies

( LU), down 1 cent to $2.51;

Exxon Mobil

(XOM) - Get Report

, down 89 cents to $58.38;

Hewlett-Packard

(HPQ) - Get Report

, down 30 cents to $20.17;

General Electric

(GE) - Get Report

, up 22 cents to $36.40; and

Nortel Networks

( NT), unchanged at $2.73.

Nasdaq volume leaders included

Sirius Satellite Radio

(SIRI) - Get Report

, down 20 cents to $4.67;

Cisco Systems

(CSCO) - Get Report

, down 3 cents to $17.25;

Intel

(INTC) - Get Report

, up 19 cents to $23.51;

Microsoft

(MSFT) - Get Report

, up 23 cents to $24.99;

Sun Microsystems

(SUNW) - Get Report

, up 6 cents to $3.54; and

Amazon.com

(AMZN) - Get Report

, down 99 cents to $31.72.