THC, GILD, PM, DVAX, IRIS Had Unusual Volume

We have found the following stocks had unusual volume spikes on Monday, September 17, 2012.

Tenet Healthcare Corp. (NYSE:THC) had a 81.3% volume spike trading 28,595,100 shares. THC’s 30-day average volume is 5,335,410. Shares closed at $5.91 +10.06%. Tenet Healthcare Corporation is an investor-owned health care services company whose subsidiaries and affiliates mainly operate acute care hospitals, ambulatory surgery centers, diagnostic imaging centers and related health care facilities.

Gilead Sciences (NASDAQ:GILD) had a 74.7% volume spike trading 21,491,500 shares. GILD’s 30-day average volume is 5,435,220. Shares closed at $65.80 +9.23%. Gilead Sciences, Inc. is a research-based biopharmaceutical company that discovers, develops and commercializes innovative medicines in areas of unmet medical need.

Philip Morris International Inc (NYSE:PM) had a 71.4% volume spike trading 18,831,000 shares. PM’s 30-day average volume is 5,385,230. Shares closed at $90.69 +0.60%. Philip Morris International Inc is the holding company whose subsidiaries and affiliates and their licensees are engaged in the manufacture and sale of cigarettes and other tobacco products in markets outside the United States of America.

Dynavax Technologies Corp. (NASDAQ:DVAX) had a 58.8% volume spike trading 4,666,700 shares. DVAX’s 30-day average volume is 1,924,060. Shares closed at $4.77 +5.30%. Dynavax Technologies Corporation is a clinical-stage Biopharmaceutical Company, discovers and develops novel products to prevent and treat infectious diseases, asthma and inflammatory and autoimmune diseases.

Iris International (NASDAQ:IRIS) had a 99.0% volume spike trading 4,641,400 shares. IRIS’s 30-day average volume is 46,585. Shares closed at $19.54 +49.73%. IRIS International, Inc. is a manufacturer of automated in vitro diagnostic systems (IVD), sample processing products and high-value personalized diagnostics tests for use in hospitals and laboratories worldwide.

Jazz Pharmaceuticals (NASDAQ:JAZZ) had a 78.4% volume spike trading 4,233,900 shares. JAZZ’s 30-day average volume is 915,540. Shares closed at $55.29 +15.02%. A specialty pharmaceutical company, which is focused on developing and commercializing innovative products to meet unmet medical needs in neurology and psychiatry.

Waste Connections Inc. (NYSE:WCN) had a 83.5% volume spike trading 3,403,700 shares. WCN’s 30-day average volume is 560,930. Shares closed at $32.81 +11.60%. Waste Connections, Inc. is an integrated solid waste services Company that provides solid waste collection, transfer, disposal and recycling services in mostly secondary markets in the Western and Southern U.S.

Tesla Motors (NASDAQ:TSLA) had a 63.5% volume spike trading 3,212,700 shares. TSLA’s 30-day average volume is 1,173,040. Shares closed at $32.54 +10.38%. Tesla Motors,inc., designs, develops, manufactures and sells high-performance fully electric vehicles and advanced electric vehicle powertrain components.

Frontline Ltd (NYSE:FRO) had a 39.9% volume spike trading 2,571,600 shares. FRO’s 30-day average volume is 1,545,920. Shares closed at $4.27 +12.66%. Frontline Ltd is engaged mainly in the ownership and operation of oil tankers and oil/bulk/ore, or OBO, carriers, which are currently configured to carry dry cargo. It operates oil tankers of two sizes: VLCCs and Suezmaxes.

Kratos Defense & Security Solutions (NASDAQ:KTOS) had a 83.0% volume spike trading 2,405,700 shares. KTOS’s 30-day average volume is 409,490. Shares closed at $5.80 +16.70%. Kratos Defense & Security Solutions, Inc. is a specialized national security technology business providing mission critical products, services and solutions for U.S. national security priorities.

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Post Written By: Alex Fredricks Alex Fredricks has a degree in business and is an avid day-trader. Alex’s experience and love for the game of the markets is shown not only in his posts, but the post he helps edit for other authors on our staff.