7 Stocks Rising on Unusual Volume

NEW YORK (Stockpickr) -- Professional traders don't just look at a stock's price moves; they also look for big changes in volume.

Major moves in volume can signal unusual activity, such as insider buying or selling -- or buying or selling by "superinvestors."

Let's take a look at several stocks rising on unusual volume today. They are all already recording trading volume that is significantly above their average trading volume for a full day.

>>7 Stocks Hitting New 52-Week Highs

Brigham Exploration ( BEXP) is an exploration, development and production company that utilizes advanced exploration, drilling and completion technologies to systematically explore for, develop and produce domestic onshore oil and natural gas reserves. The stocks is up $6.02, or 19.8%, at $36.38 in recent trading.

Volume: 49.6 million

Average Volume: 3 million

Volume % Change: 1,566.7%

Ratings: Of 22 analysts covering the stock, 16 rate it a buy, and six rate it a hold. TheStreet Ratings has a B- buy rating on Brigham Exploration.

Statoil ( STO) agreed Monday to buy Brigham for $36.50 a share in cash.

Kinder Morgan ( KMI) owns and operates energy infrastructure in the U.S. and Canada. . The stocks is trading up $1.92, or 7.1%, at $28.81 in recent trading.

Volume: 8.4 million

Average Volume: 1.2 million

Volume % Change: 577.8%

Ratings: Of seven analysts covering the stock, five rate it a buy, and two rate it a hold.

Kinder Morgan has agreed to buy El Paso ( EP) for $21.1 billion in cash and stock.

Shanda Interactive Entertainment ( SNDA) is an interactive entertainment media company, offering an array of online entertainment content on an integrated service platform to a large and diverse user base. The stocks is up $5.97, or 17.8%, at $39.45 in recent trading.

Volume: 598,685

Average Volume: 160,000

Volume % Change: 274.2%

Ratings: Of 10 analysts covering the stock, three rate it a buy, five rate it a hold, and two rate it a sell. TheStreet Ratings has a C hold rating on Shanda.

Sequenom ( SQNM) is a diagnostic testing and genetics analysis company committed to providing products, services, diagnostic testing, applications and genetic analysis products. The stocks is up 34 cents, or 6.4%, at $5.66 in recent trading.

Volume: 4.4 million

Average Volume: 1.5 million

Volume % Change: 187.8%

Ratings: Of 11 analysts covering the stock, seven rate it a buy, three rate it a hold, and one rates it a sell. TheStreet Ratings has a D- sell rating on Sequenom.

Sequenom shows up on a recent list of the 10 Most Shorted Stocks in Biotech and was one of 11 Stocks Loved or Hated by Hedge Funds in the most recently reported quarter.

Mesabi Trust ( MSB) is a grantor trust in the U.S. The stocks is up 37 cents, or 1.6%, at $24.16 in recent trading.

Volume: 238,971

Average Volume: 115,800

Volume % Change: 105.8%

Ratings: The single analyst covering Mesabi rates it a moderate buy. TheStreet Ratings has a B- buy rating on the stock.

Mesabi is one of the top-yielding financial services stocks.

Halozyme Therapeutics ( HALO) is a biopharmaceutical company, which is dedicated to the development and commercialization of products targeting the extracellular matrix for the endocrinology, oncology, dermatology and drug delivery markets. The stocks is trading up 16 cents, or 2.6%, at $6.25 in recent trading.

Volume: 960,982

Average Volume: 490,200

Volume % Change: 95.2%

Ratings: Of 10 analysts covering the stock, eight rate it a buy, and two rate it a hold. TheStreet Ratings has a D- sell rating on Halozyme.

Achillion Pharmaceuticals ( ACHN) is a biopharmaceutical company that focuses on the discovery, development and commercialization of innovative treatments for infectious diseases. The stocks is trading up 8 cents, or 1.4%, at $5.90.

Volume: 1.2 million

Average Volume: 600,300

Volume % Change: 89.27%

Ratings: Of 13 analysts covering the stock, 11 rate it a buy, and two rate it a hold. TheStreet Ratings has an E+ sell rating on Achillion.

Acillion shows up on a recent list of 10 Hep C Stocks on Wall Street's Watch List.

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