NYSE

Rio Tinto PLC, up $11.08 at $193.76

The miner nixed its $19.5 billion Chinalco deal, and will instead cut its debt through a stock sale and venture with rival BHP Billiton Ltd.

Quanta Services Inc., up 61 cents at $24.29

Standard & Poor's will put the electric utility contactor in its S&P 500 index, meaning many funds will add its shares to portfolios.

AK Steel Holding Corp., up $1.14 at $17.63

The steel maker said it would add a $70 per ton surcharge for some steel shipments following other price increase announcements.

Rite Aid Corp., up 8 cents at $1.74

The drugstore's same-store sales inched up in May due to increased pharmacy revenues, which make up two-thirds of its sales.

Cal Dive International Inc., down 70 cents at $8.22

The oil services contractor priced a public offering of 20 million shares at $8.50 each, but will repurchase 1.6 million shares for $14 million.

Jackson Hewitt Tax Services Inc., up $1.95 at $6.25

The taxes preparer named a former chief executive of larger rival H&R Block as its new CEO as part of an ongoing company turnaround.

Cascade Corp., down $5.57 at $24.50

The manufacturer posted a loss in its first quarter due to costs of closing a French plant and weak demand for its lift truck products.

NASDAQ

Magellan Health Service Inc., up $2.04 at $31.47

The health care outsourcing services supplier said its profit will rise after buying Coventry Health Care's Medicaid services unit.

Hansen Natural Corp., down $4.19 at $32.36

The soda and energy drinks company at its shareholder meeting said sales were "disappointing" in the last two weeks of May.

A service of YellowBrix, Inc.