Shares of

Smart & Final

(SMF)

were among the

NYSE's

losers Wednesday, falling 16% after the company posted first-quarter results that fell below expectations.

Excluding discontinued operations, the operator of warehouse stores for food and food service supplies earned $3.2 million, or 10 cents a share, on sales of $427.6 million. One analyst polled by Thomson First Call was expecting earnings of 21 cents a share on sales of $436.9 million. A year ago the company earned $6.2 million, or 21 cents a share, on sales of $423.5 million. The company's most recent results were hurt by severe weather in southern California, which resulted in margin and expense pressure. Shares were trading down $1.92 to $10.18.

Amphenol

(APH) - Get Report

rose 6% after the maker of electronic connectors posted first-quarter results that were ahead of expectations. The company earned $46.4 million, or 52 cents a share, on sales of $409.4 million. Analysts were expecting earnings of 50 cents a share on sales of $401.1 million. A year ago the company earned $35.7 million, or 40 cents a share, on sales of $355.3 million. Results were helped by strong growth in the company's interconnect products, which grew by 16% during the first quarter.

Looking ahead, Amphenol forecast second-quarter earnings of 55 cents to 57 cents a share on sales of $430 million to $440 million. Analysts are expecting earnings of 55 cents a share on sales of $423.5 million. For all of 2005, the company now expects 2005 earnings growth of 11% to 14%, up from previous guidance of 9% to 12%, on sales growth of 20% to 25%, which is up from previous guidance of 18% to 23%. Shares were trading up $2.04 to $38.74.

Shares of

Champion Enterprises

( CHB) rose 18% after the maker of factory-built houses swung to a first-quarter profit. The company posted earnings from continuing operations of $5.3 million, or 6 cents a share, on sales of $244.3 million. Analysts were expecting the company to post a loss of 2 cents a share. A year ago the company posted a loss of $14.2 million, or 21 cents a share, on sales of $206.7 million. Strength in the company's modular homes sales and retail segment led to the better-than-expected results. Shares were trading up $1.53 to $9.93.

Wolverine World Wide

(WWW) - Get Report

rose 7% after the shoemaker posted first-quarter results that were ahead of expectations. The company earned $16.3 million, or 27 cents a share, on sales of $245.2 million. Analysts were expecting earnings of 24 cents a share on sales of $243.3 million. A year ago the company earned $12.3 million, or 20 cents a share, on sales of $224.9 million. Strong international sales fueled Wolverine's most recent results, the company said. Looking ahead, Wolverine raised its 2005 earnings guidance to $1.22 to $1.27 a share, up from $1.19 to $1.24, on sales of $1.045 billion to $1.065 billion, up from previous guidance of $1.4 billion to $1.6 billion. Shares were trading up $1.39 to $21.30.

Shares of

Knight Trading Group

(NITE)

fell 8% after the company posted a steep year-over-year earnings decline. The Nasdaq Stock Market trade execution firm posted earnings of $5.9 million, or 5 cents a share, on sales of $137.6 million. Analysts were expecting earnings of 8 cents a share on sales of $134.8 million. A year ago the company earned $25.9 million, or 21 cents a share, on sales of $198.3 million. The company said that its equity markets segment broke even during the quarter despite a poor trading environment. Market and competitive pressures continue to challenge the company, but it said that it continues to take steps to shore up its business over the long term, including a reorganization of its equities operations, which the company previously announced in early April. Shares were trading down 75 cents to $8.50.

NYSE volume leaders included

Lucent Technologies

( LU), up 5 cents to $2.66;

Avaya

(AV)

, down $2.37 to $8.32;

J.P. Morgan Chase

(JPM) - Get Report

, up 85 cents to $35.80;

Pfizer

(PFE) - Get Report

, down 26 cents to $27.16;

Exxon Mobil

(XOM) - Get Report

, up 7 cents to $58.70; and

General Electric

(GE) - Get Report

, down 12 cents to $35.88.

Nasdaq

volume leaders included

Intel

(INTC) - Get Report

, up 67 cents to $23.30;

Yahoo!

(YHOO)

, up $1.67 to $34.89;

Microsoft

(MSFT) - Get Report

, down 5 cents to $24.58;

Cisco

(CSCO) - Get Report

, up 25 cents to $17.43;

Oracle

(ORCL) - Get Report

, up 8 cents to $11.96;

Juniper Networks

(JNPR) - Get Report

, up $2.03 to $23.29;

Applied Materials

(AMAT) - Get Report

, up 16 cents to $15.16;

eBay

(EBAY) - Get Report

, up $1.20 to $33.37;

Apple Computer

(AAPL) - Get Report

, down 4 cents to $37.05; and

Sun Microsystems

(SUNW) - Get Report

, down 3 cents to $3.53.