Lamson & Sessions shares gained 12% in late trading Wednesday after the company sharply raised its fourth-quarter guidance.

The company, a maker of enclosures and fittings for the electric, telecom and consumer markets, sees fourth-quarter earnings of 70 cents to 75 cents a share, more than double its prior forecast of 30 cents to 33 cents. Lamson & Sessions boosted its sales view to $125 million to $130 million from $110 million to $115 million. The company said it has been able to pass cost increases on to customers, and many customers have been increasing order rates due to concern over material availability and price escalation for resin-based products. Shares rose $2.81 to $26.79 after hours.

Shares of PW Eagle ( PWEI) jumped after the company said it will prepay debt and set its earnings forecast. PW Eagle plans to combine its polyvinyl chloride and polyethylene pipe businesses into one entity through merging its subsidiary USPoly into the parent company. USPoly's outstanding debt will be prepaid, and PW Eagle also will use proceeds from its current master revolving credit facility to prepay all of its $25 million of subordinated debt. PW Eagle now anticipates its total debt at year's end will be $30 million to $40 million, compared to the outstanding debt of $102 million at Sept. 30. PW Eagle anticipates fourth-quarter earnings of $3.60 a share, including debt-related charges and a $1.15 gain from the sale of its interest in W.L. Plastics. For the year, the company expects to earn $4.50 a share. Shares were up $3.72, or 20%, to $22.46 in after-hours trading.

WellPoint ( WLP) announced that it named Larry Glasscock as chairman, in addition to his roles as president and chief executive. Glasscock will replace Leonard Schaeffer, who resigned a year after WellPoint bought Anthem. The stock fell 11 cents after hours to $76.72.

Brillian completed its previously announced merger with Syntax Groups and changed its name to Syntax-Brillian. Brillian, a developer of rear-projection, high-definition televisions, said the stock will trade for the next 20 days under the temporary ticker BRLCD, and then will resume trading under its current ticker BRLC. The company also said that based on Wednesday's stock closing price, it doesn't anticipate a reverse stock split. The stock rose 38 cents, or 6.38%, to $6 in after-hours trading.

Convera ( CNVR) narrowed its third-quarter loss to $2.5 million, or 5 cents a share, from $4.5 million, or 13 cents a share, a year ago. The latest results include $3.4 million in research and development costs related to its Web indexing initiative Excalibur. However, Convera's revenue for the quarter slid 26% to $4.5 million from $6.1 million last year, which the company attributed to the timing of certain government contracts. "While our third quarter revenue performance was below expectations, we remain committed to attaining net income neutrality for our software products group as our government pipeline remains sound," said Patrick Condo, Convera's president and CEO, in a statement. The stock fell $1.57, or 10%, to $14.03 in after-hours trading.

American Eagle Outfitters was among the losers of teen-apparel retailers reporting November sales results after the bell. The company's same-store sales for the period rose 1.7%, while total sales increased 6.9% to $202.4 million from $189.5 million last year. The company said November sales were below management's expectations, and the retailer cut its earnings forecast to 70 cents to 72 cents a share from 73 cents to 75 cents a share. The stock tumbled $1.76, or 7.8%, to $21 after hours.

Aeropostale ( ARO) reported a 7.3% rise in November same-store sales. The teen-apparel retailer's total sales rose 27% to $134.3 million from $106 million for the period a year ago. "We are pleased with our overall sales performance for November, which was driven by a strong Thanksgiving week," said Julian Geiger, chairman and chief executive, in a statement. The stock was up $1.08, or 4.3%, to $25.95 in after-hour trading.

Hot Topic shares rose 6.5% after hours after the company said net sales for the four-week period ended Nov. 26 increased 13% to $54.7 million. Same-store sales were flat for the month. "Our flat sales performance in November is a result of a later Halloween as well as increased promotional activity versus a year ago," said CEO Betsy McLaughlin in a press release. The stock rose 90 cents to $16.40 after hours.

Zumiez ( ZUMZ - Get Report) reported 18.8% growth in November same-store sales. The seller of extreme-sports-related clothing said net sales rose to $18 million from $13 million last year. The stock was up $1.38, or 3.5%, to $40.95 after hours.