Take a look at some of Tuesday's midday movers:
Fertilizer stocks, including Agrium , CF Industries , Potash , and Mosaic all moved higher as investors bet that a smaller corn crop will lift demand.
Amylin moved higher as five pharmaceutical giants remain in the running for the company, as the auction of the diabetes drugmaker enters its final leg. Amylin has a market value of $4.5 billion.
Celgene moved to the plus side after an upgrade by Cowen based on the company's valuation. The stock had been down 20 percent over the past 3 months.
Delta rose after the airliner said a key revenue measure should rise in the second quarter. But it added it will record fuel hedge losses due to declining oil prices. JP Morgan said it was resuming its coverage with an overweight rating and a $19 a share price target.
Robbins & Myers fell after the engineered equipment supplier third quarter profit tumbled 38 percent. The company’s fourth quarter outlook was short of expectations as well.
James River Coal plummeted after Standard & Poor’s Ratings Service lowered its rating one notch into junk territory. It said the coal producer’s revenue and profits in 2012 and 2013 will likely be lower than expected.
Seagate rose after it was announced it will replace Progress Energy in the S&P 500 index after the close of trading on Friday. Duke Energy is acquiring Progress.
Rosetta Genomics moved higher after it said it planned to offer up to $35 million in ordinary shares. The molecular-diagnostics company looks to raise money for its operations.
HB Fuller jumped after the specialty chemicals maker raised its full year profit forecast.
Supernus Pharmaceuticals soared after the FDA gave tentative approval for its epilepsy drug. The small cap company has a market cap of $280 million.
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