Among the companies with shares expected to actively trade in Tuesday's session are Tower Group International Ltd. (TWGP), Jamba Inc. (JMBA) and Talisman Energy Inc. (TLM, TLM.T).

Tower Group, which has struggled as it has paid out insurance claims from superstorm Sandy, said it is reviewing an array of strategic options with J.P. Morgan Securities LLC, its lead financial advisor. Shares of the company were down 22% to $5.79 in after-hours trading.

Jamba lowered its outlook for several key metrics for the fiscal year, as the smoothie company faced a slowdown in consumer spending, adverse weather in key markets and increased competition. Shares dropped 8% to $12.39 after hours.

Carl Icahn has acquired a nearly 6% stake in oil and gas producer Talisman Energy, a move the activist investor said may lead to conversations with management about board seats and strategic alternatives. The news sent shares of the Calgary, Alberta, company up 8.6% to $13.85 in after-hours trading.

 
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SolarWinds Inc. (SWI) agreed to pay $103 million to acquire privately held Confio Software, a deal the information-technology management software firm said will help bolster its product portfolio.

United Continental Holdings Inc. (UAL) reported slightly higher passenger traffic in September, the first monthly increase the airline has reported from year-ago levels since January.

Wendy's Co. (WEN) disclosed the sale of all of the fast-food chain's company-owned stores in the Seattle market, unloading the restaurants to long-time franchisee Cedar Enterprises Inc. The deal is part of a plan announced earlier this year to sell about 425 company-operated restaurants to franchisees.

Write to John Kell at john.kell@wsj.com

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