After-hours buzz: ZNGA, ASNA, ROST & more

Traders work on the floor of the New York Stock Exchange.
Brendan McDermid | Reuters
Traders work on the floor of the New York Stock Exchange.

Check out the companies making headlines after the bell Tuesday:

Zynga shares popped after the bell when the online gaming company announced a new CEO. Industry veteran Frank Gibeau will lead the company behind "Words with Friends" and "Farmville," while founder Mark Pincus will stay on as the board's executive chairman, according to a company release.

Shares of Ascena Retail dipped in extended trading Tuesday after reporting quarterly earnings. The company behind brands like Dress Barn and Ann Taylor posted adjusted earnings of 1 cent per share, citing challenges like changing customer behavior around Black Friday and continued traffic headwinds.

Discounter Ross Stores saw shares rise after the company beat analyst estimates in the latest quarter. Ross had profit of 66 cents per share, above the 64 cents per share predicted, according to the Associated Press.

Guidewire Software's stock also jumped after reporting adjusted earnings 24 cents per share, beating the 15 cents per share expected by analysts, according to the Associated Press. Guidewire makes software for the insurance industry.

Weatherford International's stock slid after it announced an 80-million share public offering to pay down debt and buy additional shares, the company said in a statement. The oil company's move comes as other energy firms, like Marathon, offer more shares amid historically low oil prices.

Shares of CSX Corp moved higher after reports the real estate and railway holding company rebuffed a January takeover bid from Canadian Pacific Railway. Canadian Pacific has been eyeing rail carriers in Eastern North America as it looks to build a transnational railway, according to The Wall Street Journal.