6 NASDAQ Stocks Dipping Today: TRGT, ARNA, OPTR, HALO, SWHC, SIRI

Nasdaq StocksTargacept, Inc. (NASDAQ:TRGT) is down 12.37% today at $4.25. TRGT has traded 1.2 million shares so far today, double its daily average. TRGT shares are tumbling today after the company reports error in asthma study. The company has a market cap of 141.93 million.

Arena Pharmaceuticals, Inc. (NASDAQ:ARNA) is down 3.69% in early trading at $3.0050. ARNA has traded 8.8 million shares so far today, above its daily average of 7.8 million shares. ARNA shares are falling as investors react to the FDA decision delay of Vivus’s obesity drug. The company has a market cap of 545.24 million.

Optimer Pharmaceuticals, Inc. (NASDAQ:OPTR) is down 9.66% today at $12.40. OPTR has traded 1.6 million shares so far today, three times its average volume. OPTR shares have dropped $2 a share in the past week. The company has a market cap of 575.22 million.

Halozyme Therapeutics, Inc. (NASDAQ:HALO) is down nearly 9% today at $11.06. HALO has traded 1.5 million shares so far today, 50% more than its daily average volume. HALO shares were downgraded to hold from buy at Jefferies. The company has a market cap of 1.17 billion.

Smith & Wesson Holding Corporation (NASDAQ:SWHC) is down 8% at $7.47. SWHC has traded 1.3 million shares so far today, above its daily average of 1.1 million shares. SWHC shares have fallen $1 a share in the past week. The company has a market cap of 493.05 million.

Sirius XM Radio Inc. (NASDAQ:SIRI) is down 2.37% today at $2.27. SIRI has traded 25.8 million shares in early trading and trades 56.6 million shares a day on average. SIRI shares have fallen about $0.10 a share in the past five days. The company has a market cap of 8.51 billion.

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About Martin Stephenson

An avid market watcher, Martin enjoys the tech arena the most with the Nasdaq being his main area of focus. A finance major, Martin is working to the goal of one day ringing the bell at the NYSE.

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