11:30AM New York - Prudential Financial led gainers in the S&P 500 index with a rise of 19.2%. AAON, Inc first quarter profit increase beats estimates. Churchill Downs first quarter swings to loss. Cornerstone Therapeutics first quarter profit surges.

Of the stocks in S&P 500 index, 290 increased, 204 declined and 6 were unchanged.

Symantec Corporation led the decliners in the S&P 500 index of 11.8% followed by losses in Expeditors International of Washington, Inc of 7.3%, in The Nasdaq OMX Group, Inc of 6.8%, in Limited Brands, Inc of 6.0% and in Simon Property Group, Inc of 5.5%.

Prudential Financial, Inc led gainers in the S&P 500 index with a rise of 19.2% followed by gains in Fifth Third Bancorp of 19.1%, in Capital One Financial Corporation of 18.7% and Genworth Financial, Inc of 18.3%.

Credit card lenders and banks rallied. American Express (AXP) increased in the early morning and then traded lower to $27. Capital One (COF) surged 20% or 44.66 to $27.00 after Goldman Sachs recommended the stock and Bank of America (BAC) increased 10.3% or $1.30 to $13.99 after Morgan Stanley and Robert W. Baird & Co. recommended the bank.

Other Movers

AAON, Inc (AAON) added 5.9% or $1.15 to $20.54 after the air-conditioning and heating equipment maker said first quarter sales fell 2% to $64.0 million from $65.5 million a year ago. Net income in the quarter rose 5% to $6.7 million or 39 cents per diluted share compared to net income of $6.4 million or 35 cents per share a year ago.

The Andersons, Inc (ANDE) increased 13% or $2.39 after it reported 37% decline in earnings but exceed analysts’ expectations. The grain and plant nutrients distributor and rail car lessor reported first quarter earnings of $5 million or 27 cents a share compared to $7.8 million or 42 cents a share. Revenues declined 2.4% to $697 million from a year ago quarter.

Blackboard Inc (BBBB) declined 10.4% or $3.43 to $29.50 after the education-software provider said first quarter sales rose 26% to $86.4 million from $68.5 million a year ago. Net loss in the quarter was $37,000 or break even per diluted share compared to net loss of $4.4 million or 15 cents per share a year ago.

California Micro Devices Corporation (CAMD) dropped 5.1% or 16 cents to $2.94 after the supplier of application specific analog and mixed signal semiconductor products said first quarter revenues fell 38.7% to $9.2 million from $15.0 million a year ago. Net loss in the quarter was $3.4 million or 15 cents per diluted share compared to net loss of $1.15 million or 5 cents per share a year ago.

Churchill Downs Incorporated (CHDN) slid 3.7% or $1.26 to $32.68 an owner and operator of pari-mutuel wagering properties and businesses said first quarter revenues rose 12% to $73.7 million from $65.7 million a year ago. Net loss in the quarter was $4.8 million or 36 cents per diluted share compared to net income of $0.7 million or 5 cents per share a year ago.

Cisco Systems, Inc (CSCO) gained 2.5% or 49 cents to $20.10 after the world''s largest maker of computer networking gear said third quarter revenues fell 17% to $8.2 billion from $9.8 billion a year ago. Net income in the quarter fell 28% to $1.3 billion or 23 cents per diluted share compared to net income of $1.8 billion or 29 cents per share a year ago.

CapitalSource Inc (CSE) added 7.6% or 30 cents to $4.20 after the commercial lender reported first quarter total interest income fell 28% to $221.7 million from $308.3 million a year ago. Net loss in the quarter was $104 million or 36 cents per diluted share compared to net income of $5.2 million or 2 cents per share a year ago.

Cornerstone Therapeutics Inc (CRTX) rose 6.6% or 50 cents to $8.00 after the specialty pharmaceutical company first quarter revenues rose 225% to $30.7 million from $9.4 million a year ago. Net profit in the quarter rose 803% to $6.32 million or 48 cents per diluted share compared to net income of $0.7 million or 10 cents per share a year ago.

DURECT Corporation (DRRX) fell 8.7% or 20 cents to $2.10 after the specialty pharmaceutical company said first quarter revenues fell 3% to $6.2 million from $6.4 million a year ago. Net loss in the quarter was $8.7 million or 11 cents per diluted share compared to net loss of $7.8 million or 11 cents per share a year ago.

Eagle Bulk Shipping Inc (EGLE) lost 4.5% or 42 cents to $8.76 after the bulk ocean cargo carrier said first quarter revenues rose 53% to $56 million from $36.7 million a year ago. Net income in the quarter rose 20% to $17.2 million or 37 cents per diluted share compared to net income of $14.3 million or 31 cents per share a year ago.

General Motors Corporation (GM) gained 4.2% or 7 cents to $1.73 after the world''s largest automakers said first quarter revenues fell 47% to $22.4 billion from $42.4 billion a year ago. Net loss in the quarter was $6 billion or $9.78 per diluted share compared to net loss of $3.3 billion or $5.80 per share a year ago.

Knology, Inc (KNOL) gained 7.6% or 59 cents to $8.29 after the provider of interactive communications and entertainment services reported first quarter revenues rose 3.3% to $104.7 million from $101.3 million a year ago. Net loss in the quarter was $2.3 million or 6 cents per diluted share compared to net loss of $3.2 million or 9 cents per share a year ago.

K-Swiss Inc (KSWS) dropped 5.7% or 61 cents to $10.00 after the athletic footwear maker reported first quarter revenues fell 24.8% to $74.0 million from $98.4 million a year ago. Net loss in the quarter was $1.1 million or 3 cents per diluted share compared to net profit of $7.1 million or 20 cents per share a year ago.

Local.com Corporation (LOCM) added 12.1% or 42 cents to $3.87 after the local search site and network company said first quarter revenues rose 26% to $11.1 million from $8.8 million a year ago. Net loss in the quarter was $2.9 million or 20 cents per diluted share compared to net loss of $2.8 million or 19 cents per share a year ago.

MetroPCS Communications, Inc (PCS) lost 6.4% or $1.19 to $17.25 after the provider of wireless communication services reported first quarter revenues rose 17% to $795 million from $662 million a year ago. Net income in the quarter rose 10% to $44 million or 12 cents per diluted share compared to net income of $40 million or 11 cents per share a year ago.