LONDON, August 7, 2013 /PRNewswire/ --

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On Tuesday, August 6, 2013, the S&P 500 index closed 0.57% lower at 1,697.37. Shares in healthcare companies ended on a declining note as the broader market edged lower. The major movers in the sector included Community Health Systems Inc. (NYSE: CYH), Isis Pharmaceuticals Inc. (NASDAQ: ISIS), Quest Diagnostics Inc. (NYSE: DGX), and Santarus Inc. (NASDAQ: SNTS). All these companies are tracked by AAAResearchReports.com. Free technical research on CYH, ISIS, DGX, and SNTS can be downloaded upon signing up at:

http://www.aaaresearchreports.com/register

Shares in Community Health Systems Inc. fell sharply on Tuesday as the broader market declined. The company's shares ended the day 1.85% lower at $45.07 after fluctuating between $45.00 and $45.93. A total of 1.22 million shares were traded, which is below the daily average volume of 1.50 million. Community Health Systems' shares have lost 2.02% in the last three trading sessions. Sign up and read the complimentary report on CYH at:

http://www.AAAResearchReports.com/CYH080713.pdf

Isis Pharmaceuticals Inc.'s stock tumbled on Tuesday, finishing at $27.75, down 3.14% from its previous closing price. The company's shares oscillated between $27.42 and $29.20. A total of 1.16 million shares were traded, which is below the daily average volume of 1.67 million. Isis Pharmaceuticals' shares have advanced 23.77% in the last three months, outperforming the S&P 500 which has gained 4.94% during the same period. The free report on ISIS can be downloaded by signing up now at:

http://www.AAAResearchReports.com/ISIS080713.pdf

Shares in Quest Diagnostics Inc. fluctuated between $58.25 and $58.82 on Tuesday before ending the day 0.09% lower at $58.46. A total of 1.00 million shares were traded, which is below the daily average volume of 1.27 million. Quest Diagnostics' shares have fallen 0.41% during the last three trading sessions and have declined 3.85% in the last one month. A free report on DGX can be accessed by registering at:

http://www.AAAResearchReports.com/DGX080713.pdf

Santarus Inc.'s stock slipped on Tuesday as the broader market finished on a declining note. The company's shares ended the session 1.43% lower at $24.87 after oscillating between $24.57 and $25.70. A total of 1.81 million shares were traded, which is above the daily average volume of 1.43 million. The stock is trading above its 50-day and 200-day moving averages. Register with AAA Research Reports and download research on SNTS for free at:

http://www.AAAResearchReports.com/SNTS080713.pdf

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