Updated from 11:29 a.m. EDT

Shares of

William Lyon Homes

(WLS)

were among the

NYSE's

winners Monday, rising 22.3% after the company increased the size of its stock repurchase plan and bought 1.3 million common shares.

The company upped its buyback authorization to 3 million shares from 2 million shares. The homebuilder had bought 1.2 million shares under the old program. In addition to increasing the number of shares in the buyback program, the company also announced that it purchased about 1.3 million shares of stock. Shares of William Lyon traded up $14.62 to $80.22

Kraft Foods

(KFT)

fell modestly after the company agreed to sell its sugar confectionery business to

Wm. Wrigley Jr.

(WWY)

. The chewing-gum company will buy Kraft's candy business for $1.48 billion. The sale includes the Life Savers, Creme Savers, Trolli and Sugus brands. As part of the sale, about 700 Kraft employees are expected to transfer to Wrigley. Kraft said the sugar confectionery business, which represents about 1.5% of Kraft's overall sales, is expected to contribute about 5 cents a share in earnings on $490 million in sales during 2004. The deal is expected to close by mid-2005. Shares traded down 20 cents to $34.68.

Shares of

Smithfield Foods

(SFD)

rose 4.4% after the company previewed second-quarter earnings that topped expectations. The food company expects to post a profit of 50 cents to 52 cents a share. A year ago the company posted a profit of 29 cents a share. Smithfield said a 30% increase in live hog prices and better pork processing margins in October led to the strong results. Analysts polled by Thomson First Call had been expecting earnings of 45 cents a share. Separately, the company announced plans to sell $150 million in senior unsecured notes due 2011. Smithfield will use the proceeds to repay debt and for general corporate purposes. Shares traded up $1.16 to $27.58.

Taser International

(TASR)

rose 5.8% after the company announced that its stun guns were approved for trials by the South Korean National Police Agency. Taser said the agency decided to evaluate the X26 device after successful trials by the police SWAT and Counter-Terrorism Institute. The initial order of 100 Taser X26 units marks the first time that general-duty officers will use the weapon. If the evaluation goes well, the national police agency plans to supply the weapons to officers in 14 police agencies in 2005. Shares traded up $3.35 to $60.85.

Shares of

SPX

(SPW)

rose 2.8% after the company agreed to sell its Edwards Systems Technology unit to

General Electric

(GE) - Get Report

for about $1.4 billion in cash. SPX originally bought the fire-detection business in 1998 as part of the acquisition of General Signal. As a result of the sale of Edwards to General Electric, and the pending sale of its Bomag compaction business to France-based Fayat Group, SPX withdrew its earnings guidance for 2004. Shares of SPX traded up $1.22 to $44.21.

NYSE volume leaders included

Nortel Networks

(NT)

, up 8 cents to $3.11;

Lucent

(LU)

, up 15 cents to $4.05;

Pfizer

(PFE) - Get Report

, up 17 cents to $27.62;

Merck

(MRK) - Get Report

, up 64 cents to $27.09; and

Advanced Micro Devices

(AMD) - Get Report

, down 4 cents to $20.98.

Nasdaq

volume leaders included

Sirius Satellite Radio

(SIRI) - Get Report

, up 28 cents to $4.45;

Microsoft

(MSFT) - Get Report

, up 50 cents to $27.39;

Sun Microsystems

(SUNW) - Get Report

, up 23 cents to $5.09;

Intel

(INTC) - Get Report

, up 8 cents to $23.77; and

Cisco

(CSCO) - Get Report

, up 29 cents to $19.55.