Positive earnings lifted

Yum! Brands

(YUM) - Get Report

amid Monday's thinly traded after-hours session.

The Louisville, Ky., company, which operates KFC, Pizza Hut and Taco Bell, among others, reported a profit of $270 million, or 50 cents a share, compared with 42 cents a share last year. Analysts polled by Thomson Financial were looking for 45 cents a share, excluding extraordinary items. Sales totaled a better-than-expected $2.56 billion.

Yum! shares climbed $1.26, or 3.5%, to $37.55 in recent extended trading.

Sprint Nextel

(S) - Get Report

was another late winner, after announcing that chairman and CEO Gary Forsee is

resigning, effective immediately. CFO Paul Saleh will replace him in the interim, and board member James Hance Jr. was appointed acting non-executive chairman. Shares of the Reston, Va.-based wireless-communications giant rose 2.7% to $19.

Elsewhere,

Standard & Poor's

TST Recommends

added

Expeditors International

(EXPD) - Get Report

to the

S&P 500

index as of the market's close Tuesday. Iowa's

Terra Industries

( TRA), which makes nitrogen and methanol products for agricultural and industrial markets, was added to the S&P MidCap 400.

Seattle-based Expeditors tacked on 3.2% at $51.50. Terra shares gained 4.9% to $30.89 in heavy trading.

Microchip Technology

(MCHP) - Get Report

slid, however, after the chipmaker pegged non-GAAP, fiscal second-quarter income at about 38 cents a share. That beats the Street's 36-cent consensus, though it's a penny below prior guidance. Sales should be between $258 million and $259 million to trail the prior outlook, as well as analysts' estimates. Shares of the Chandler, Ariz. company sank $1.70, or 4.6%, to $34.92.