Shares of

Tractor Supply

(TSCO) - Get Report

were among the

Nasdaq's

winners Thursday, jumping 17% after the retail farm and ranch store chain posted better-than-expected fourth-quarter results and forecast 2006 results above expectations.

For the fourth quarter, the company earned $30.9 million, or 75 cents a share, on sales of $597.9 million. Analysts polled by Thomson First Call expected earnings of 63 cents a share and sales of $544.2 million. During the year-earlier quarter, the company earned $22 million, or 54 cents a share, on sales of $456 million.

Looking ahead, Tractor Supply sees 2006 earnings of $95 million to $99 million, or $2.32 to $2.39 a share. The guidance includes 11 cents a share in stock-based compensation costs. The company sees sales of $2.35 billion to $2.4 billion. Analysts project earnings of $2.38 a share, before stock-based compensation costs, and sales of $2.33 billion. Tractor Supply shares were trading up $8.65 to $59.32.

Reliance Steel & Aluminum

(RS) - Get Report

rose 7% after the metal processing services company raised its fourth-quarter earnings projection. The company now estimates earnings of $1.75 to $1.80 a share, up significantly from its earlier view of $1.10 to $1.20 a share. When the company issued fourth-quarter guidance in October, it said it didn't expect significant changes in pricing or demand. "However, we did experience both improved pricing levels and stronger demand than we anticipated," the company said Thursday. Analysts project earnings of $1.20 a share. Shares recently changed hands at $84.03, up $5.62.

Shares of

Wesco International

(WCC) - Get Report

rose 8% after the construction materials provider posted fourth-quarter results that easily surpassed expectations. The company earned $39.7 million, or 80 cents a share, on sales of $1.24 billion. Results included a $3.3 million charge related to the retirement of senior notes and a $1 million charge related to the repatriation of foreign earnings. Analysts expected earnings of 61 cents a share on sales of $1.17 billion. During the year-earlier period, the company earned $17.1 million, or 38 cents a share, on sales of $987.9 million. Shares were up $4.26 to $53.01.

Fleetwood Enterprises

( FLE) slid 6% after the recreational vehicle manufacturer previewed disappointing third-quarter sales. The company sales for the quarter ended Jan. 29 rose to $580 million from $509 million a year ago. Analysts expected higher sales of $620.2 million. During the quarter, RV sales grew 5% to $361 million, while motor home sales plunged 23% to $179 million.

"We believe the decline in motor home sales reflects not only a softer market, especially for Class A units, but also prudence on our part and the part of our dealers to avoid the kind of overproduction and resulting excess inventory that occurred in last year's third quarter," the company said. The softer-than-expected motor home sales now suggest, the company said, that third-quarter operating results will be below the second quarter. Shares were trading down 78 cents to $11.52.

Shares of

Clorox

(CLX) - Get Report

rose 5% after the household products maker posted second-quarter results that topped forecasts. The company earned $83 million, or 55 cents a share, up from $136 million, or 72 cents a share, a year earlier. Sales rose to $1.06 billion from $1 billion. Analysts expected earnings of 47 cents a share on sales of $1.03 billion.

For 2006, Clorox anticipates earnings of $2.97 to $3.07 a share, including 14 cents to 16 cents in stock-based compensation expense. The company sees sales growth of 4% to 6%. Analysts expect 2006 earnings of $2.96 a share, including stock-based compensation costs, on sales of $4.6 billion, or sales growth of about 5%. Clorox shares were trading up $2.96 to $62.92.

NYSE

volume leaders included

Lucent Technologies

( LU), up 5 cents to $2.69;

Tyco

(TYC)

, down 93 cents to $25.17;

Time Warner

(TWX)

, down 7 cents to $18.15;

General Electric

(GE) - Get Report

, up 4 cents to $33.18;

Texas Instruments

(TXN) - Get Report

, up 31 cents to $30.08;

Pfizer

(PFE) - Get Report

, down 13 cents to $25.92;

Gap

(GPS) - Get Report

, up 30 cents to $18.28; and

Nortel Networks

( NT), up 1 cent to $3.20.

Nasdaq volume leaders included

JDSU

(JDSU)

, down 9 cents to $3.07;

Intel

(INTC) - Get Report

, down 24 cents to $21.31;

Bookham

( BKHM), up $1.11 to $8.07;

Genta

( GNTA), up 49 cents to $3.25;

Oracle

(ORCL) - Get Report

, down 12 cents to $12.46;

Sirius Satellite Radio

(SIRI) - Get Report

, down 3 cents to $5.68;

Microsoft

(MSFT) - Get Report

, down 35 cents to $27.69;

3Com

( COMS), up 23 cents to $5.09;

Sun Microsystems

(SUNW) - Get Report

, unchanged at $4.52; and

Cisco Systems

(CSCO) - Get Report

, down 9 cents to $18.49.