After-Hours Buzz: Yum Brands, Ulta Salon, Rambus & More

Check out which companies are making headlines after the bell Tuesday:

Yum Brands - The fast-food chain said its May same-store sales in China tumbled 19 percent, adding that the Avian flu scare had a significantly negative impact on KFC sales. But the company said it expects same-store sales to continue to recover over the course of the year and will be positive in the fourth quarter. Shares slipped in extended-hours trading.

Ulta Salon - The beauty store chain posted earnings of 65 cents a share on sales of $583 million, topping expectations for 62 cents a share on revenue of $576 million. However, the company handed in current-quarter guidance that were below forecasts. Still, shares gained in extended-hours trading.

(Read More: Stocks End Down 1%, Dow Falls 100; BoJ Weighs)

Rambus - The technology licensing company settled a patent case with South Korean semiconductor supplier SK Hynix, signing a five-year patent license agreement. Shares soared in extended-hours trading.

Prudential - The financial services company announced a $1 billion stock buyback program. Shares edged higher in extended-hours trading.

Oxford Industries - The high-end clothing retailer posted earnings of 82 cents a share, excluding one-time items, topping expectations by a nickel. But revenue was slightly lighter than expected at $234 million, missing estimates for $237 million. In addition, the company said it expects to earn between 92 cents a share and $1.02 a share in the current quarter, against expectations for 95 cents a share. Shares were largely unchanged in extended-hours trading.

Newcastle Investment - The mortgage real estate investment trust announced a 30 million share secondary offering through BofA/Merrill Lynch, Credit Suisse and UBS. Shares declined in extended-hours trading.

Dean Foods - The food and beverage company was downgraded to "market perform" from "outperform" at Bernstein. Shares declined in extended-hours trading.

—By CNBC's JeeYeon Park (Follow JeeYeon on Twitter: @JeeYeonParkCNBC)

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