NYSE

Humana Inc., down $9.09 at $31.45

Preliminary 2010 Medicare Advantage payment rates, which the government released Friday, could hurt the health insurer next year.

Campbell Soup Co., down 99 cents at $28.46

Second-quarter profit dropped as overall sales fell and due to a stronger dollar, though domestic soup sales were strong.

Developers Diversified Realty Corp., down 11 cents at $2.52

The shopping center real estate investment trust posted a loss in funds from operations due to the declining value of some assets.

Actuant Corp., down 66 cents at $12.02

The industrial products maker said sales for the two months ended Jan. 31 plunged 23 percent from the same period a year ago.

NASDAQ

Waste Services Inc., up 28 cents at $4.53

The garbage hauler's fourth-quarter loss narrowed from the comparable year-ago period, beating Wall Street expectations.

Lincoln Electric Holdings Inc., down $3.14 at $35.20

Quarterly income fell 60 percent as the welding products manufacturer began to feel the effects of a weakened global economy.

Amerisafe Inc., down 9 cents at $16.24

The writer of high hazard workers' compensation insurance said profit fell 69 percent due to $13.4 million in capital losses.

Career Education Corp., up $1.54 at $25.16

Two analysts boosted their price targets for the for-profit education company, after it said fourth-quarter income tripled.

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