Shares of PW Eagle ( PWEI) were among Nasdaq's winners Thursday, jumping 24% after the maker of PVC pipe products lifted its fourth-quarter earnings guidance well above its previous view.

The company now sees earnings of at least $3.60 a share, well above the $2.10 a share that it previously forecast. Both the previous and current forecasts include a gain of $1.15 a share from the sale of an interest in W.L. Plastics. "Demand for the company's products has remained strong and margins in the fourth quarter have continued to trend very well and better than expected," PW Eagle said.

For the entire year, the company expects earnings of at least $4.50 a share, above the $3 a share that it forecast previously. "The demand for this time of year remains robust," the company said. "As we have said before, we cannot predict how long these conditions will continue, but we expect this environment to continue at least through December." PW Eagle shares -- which more than doubled over the month of November -- recently were trading up $4.41 to $23.15.

Multimedia Games ( MGAM) fell 8% after the company posted weaker-than-expected fourth-quarter earnings and projected first-quarter results below Wall Street's forecasts. For the quarter ended Sept. 30, the maker of electronic gambling machines earned $2.9 million, or 10 cents a share, down from $7.2 million, or 24 cents a share, a year earlier. Sales fell to $36.9 million from $42.7 million last year. Analysts polled by Thomson First Call expected earnings of 12 cents a share on sales of $36.4 million.

Multimedia Games sees first-quarter earnings of 8 cents to 9 cents a share, and a sequential sales decline of 6%. Analysts expect earnings of 13 cents a share and sales of $40.4 million, or a sequential sales gain of about 9%. Shares were trading down 81 cents to $9.37.

Shares of World Wrestling Entertainment ( WWE - Get Report) rose 5% after the professional wrestling producer posted second-quarter results that topped analysts' forecasts, and also boosted its full-year forecast. The company earned $11.7 million, or 17 cents a share, on sales of $88.9 million. The results included a gain of about $3.4 million in legal settlements. Analysts expected earnings of 7 cents a share on sales of $82 million. A year earlier, the company earned $4.4 million, or 6 cents a share, on sales of $83.9 million.

World Wrestling Entertainment now sees full-year earnings of 50 cents to 55 cents a share. Previously, the company forecast earnings of 46 cents to 50 cents a share. The company increased its sales view to $370 million to $385 million from $360 million to $375 million. Analysts expect earnings of 52 cents a share and sales of $371.4 million. WWE shares were up 63 cents to $14.14.

Pantry ( PTRY) rose 8% after the convenience store operator reported fourth-quarter results that easily beat Wall Street expectations and increased its fiscal 2006 earnings guidance. For the quarter ended Sept. 29, the company earned $25.4 million, or $1.12 a share, on sales of $1.38 billion. Results included one-time charges of about 22 cents a share. Analysts expected earnings of 96 cents a share, with sales of $1.32 billion. The company earned $12.6 million, or 60 cents a share, on sales of $1.03 billion, a year ago.

Pantry now sees fiscal 2006 earnings of $2.80 to $2.90 a share, up from an earlier view of $2.55 to $2.65 a share. Analysts expect earnings of $2.53 a share. Shares were trading up $3.21 to $44.31.

Shares of Conn's ( CONN - Get Report) rose 7% after the home-appliance and electronics retailer posted third-quarter earnings that topped forecasts. The company earned $9.1 million, or 38 cents a share, on sales of $173.3 million. Analysts expected earnings of 34 cents a share. A year ago, the company earned $6.3 million, or 27 cents a share, on sales of $132.9 million.

Conn's raised its full-year earnings forecast to $1.60 to $1.65 a share from its previous guidance of $1.50 to $1.55 a share. Analysts expect earnings of $1.57 a share. Conn's shares were trading up $2.52 to $36.40.

NYSE volume leaders included Nortel Networks up 9 cents to $2.99; Pfizer ( PFE), up 11 cents to $21.31; Wal-Mart ( WMT), down 73 cents to $47.83; Citigroup ( C - Get Report), up 50 cents to $49.05; Lucent Technologies , up 2 cents to $2.81; Chesapeake Energy ( CHK - Get Report), up $1.01 to $29.96; and General Electric ( GE - Get Report), up 4 cents to $35.76.

Nasdaq volume leaders included JDSU ( JDSU), up 11 cents to $2.68; Sirius Satellite Radio ( SIRI), down 1 cent to $7.14; Intel ( INTC), up 48 cents to $27.16; Microsoft ( MSFT), up 28 cents to $27.96; Sun Microsystems ( SUNW), up 8 cents to $3.85; Rigel Pharmaceuticals ( RIGL - Get Report), down $13.92 to $8; Cisco Systems ( CSCO), up 19 cents to $17.73; Oracle ( ORCL), up 29 cents to $12.89; Apple Computer ( AAPL), up $1.87 to $69.69; and Yahoo! ( YHOO), up 70 cents to $40.93.