The top after-market NASDAQ Stock Market gainers are: Gentiva Health Services, Sangamo Biosciences, LHC Group, Clearwire, and Cytori Therapeutics. The top after-market NASDAQ Stock Market losers are: Innophos Holdings, Texas Roadhouse, Siliconware Precision Industries, Ctrip.com International, and Meru Networks.

Gainers

Gentiva Health Services Inc. (GTIV) stock jumped 18.04 percent to $17.99 in the after-market trading. The stock touched a new 52-week low of $14.76 on Monday.

Sangamo Biosciences Inc. (SGMO) stock grew 8.79 percent to $6 in the after-market trading.

LHC Group, Inc. (LHCG) stock gained 7.73 percent to $22.78 in the after-market trading.

Clearwire Corp. (CLWR) stock increased 7.58 percent to $2.27 in the after-market trading.

Cytori Therapeutics, Inc. (CYTX) stock rose 7.48 percent to $4.74 in the after-market trading.

Losers

Innophos Holdings Inc. (IPHS) stock plunged 10.06 percent to $43.20 in the after-market trading. Profit for the second quarter was $20.75 million or $0.92 per share, up from $17.62 million or $0.79 per share last year. Excluding a water duties charge, adjusted earnings would have been $0.93 per share. Sales rose 9.6 percent to $201.63 million. Analysts had expected profit of $0.97 per share on revenue of $208.50 million. Separately, the company announced the establishment of a new subsidiary in China, Innophos (Taicang) Food Ingredients Manufacturing Co., Ltd., to grow food and beverage markets in China with increased specialty ingredients capability. It is expected to begin servicing customers in the third quarter of 2011.

Texas Roadhouse Inc. (TXRH) stock fell 9.77 percent to $15 in the after-market trading. Profit for the second quarter was $16 million or $0.22 per share, up from $15 million or $0.21 per share last year. Revenue rose 10 percent to $279.6 million. Analysts had expected profit of $0.23 per share on revenue of $280.03 million. Comparable restaurant sales increased 4.4 percent at company restaurants and 3.6 percent at franchise restaurants.

Looking ahead into fiscal 2011, the company now expects earnings to grow 5 percent from last year, compared to its previous forecast of 5 percent to 10 percent growth. The slightly moderated sales and margin expectations are due to overall inflationary pressures. Texas Roadhouse expects 2011 comparable company restaurant sales to grow 4.0 to 4.5 percent from last year, and expects to open 20 restaurants for the period. For 2012, it anticipates to open 25 restaurants.

Siliconware Precision Industries Co. Ltd. (SPIL) stock tumbled 8.87 percent to $4.52 in the after-market trading.

Ctrip.com International Ltd. (CTRP) stock slid 7.74 percent to $41.50 in the after-market trading. Profit for the second quarter 263.70 million Chinese yuan or $40.80 million, up 12 percent increase from 235.21 million Chinese yuan last year. Earnings per ADS were 1.72 Chinese yuan or $0.27, up from 1.55 Chinese yuan per ADS last year. Adjusted earnings were 351 million Chinese yuan or $54 million, up 20 percent from last year. Adjusted profit per ADS was 2.29 Chinese yuan or $0.35 for the latest quarter. Revenue rose 20 percent to 833.03 million Chinese yuan or $128.88 million. Analysts had expected profit of $0.27 per share on revenue of $129.64 million. For the third quarter, the company still expects revenue growth at a rate of about 15 percent to 20 percent, while Street predicts 24.90 percent growth.

Meru Networks, Inc. (MERU) stock declined 6.93 percent to $8.59 in the after-market trading.