Take a look at some of Wednesday's midday movers:
Skechers - The stock was lower after the company agreed to pay $40 million to settle charges with the FTC that it made unfounded claims advertising that its “toning shoes” would enable users to get stronger and lose weight.
Rosetta Genomics - The stock moved higher after the molecular-diagnostic company said its lead diagnostic assay will now be covered by Medicare.
Ambow Education Holding - The company further delayed the filing of its annual report, citing it has identified several adjustments to be made to its 2011 results. The stock was trading at its lowest level in nine months.
Lighting systems provider Cree moved higher after it won a contract to provide outdoor lighting to Wal-Mart .
Micron jumped on news that Apple has booked up to 50 percent of mobile DRAM capacity at Elpida’s Hiroshima plant. Micron is in talks to buy Elpida.
Delta , United Continental , US Airways and Southwest rallied as oil continued to slide. Package deliverers UPS and FedEx also gained.
Legg Mason moved higher after its board authorized an additional $1 billion for share repurchases.
Orasure surged after a panel of health experts recommended approval of its in-home HIV test. If approved, it would become the first of its kind in the United States.
Insperity jumped after it raised its dividend 13 percent to 17 cents a share. Insperity is a provider of human resources and business performance solutions.
Eagle Materials slumped as the maker of construction materials missed wall street estimates.
Obesity drug developer Arena Pharmaceuticals was trading lower after it announced it would sell 11 million shares of its stock for $5.50 a share.
Lam Research and Novellus Systems fell after JPMorgan cut its stock investment ratings to "underweight" from "neutral," saying it expects semiconductor capital expenditure in the second half of 2012 to weaken.
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