The stock market is up Tuesday, with the Dow Jones Industrial Average up 0.84%, the Nasdaq up 1.38% and the S&P 500 up 0.90%. Today’s winners include a pharmaceutical company receiving approval for a sale of a cardio test, another pharmaceutical company selling a new drug and a market research company getting bought by a private equity firm. Today’s losers include an industrial manufacturing company eyeing a rival firm to buy and a drug company whose stock is in correction following a jump on Monday.

These are Tuesday’s market winners and losers.

Biggest Winners

Shares of BG Medicine, Inc. (NASDAQ: BGMD) are up 93.98% to $2.58 on trading volume of 3.3 million shares. The company received approval in Europe for commercial sales of its CardioSCORE diagnostic blood test. The 52-week high is $12.80.

Shares of Acura Pharmaceuticals Inc. (NASDAQ: ACUR) are up 54.69% to $3.79 on trading volume of 5.8 million shares. The company announced Monday it is now selling a decongestant with pseudoephedrine that is more difficult to use as an ingredient in methamphetamine. The 52-week high is $4.23.

Shares of TNS Inc. (NYSE: TNS) are up 43.13% to $20.84 on trading volume of 4.4 million shares. Private equity firm Siris Capital Group will buy the networking products manufacturer for $21 a share. The 52-week high is $22.84.

Biggest Losers

Shares of SPX Corporation (NYSE: SPW) are down 7.89% to $62.93 on trading volume of 2.6 million shares. The  firm is in talks to buy rival  Gardner Denver Inc. (NYSE: GDI), according to several news sources. The 52-week low is $56.31.

Shares of Infinity Pharmaceuticals, Inc. (NASDAQ: INFI) are down 8.04% to $25.15 on trading volume of 1.3 million shares. The stock is in correction after shares soared more than 20% Monday after the firm announced positive results from an early clincial trial of a blood cancer drug. The 52-week low is $5.50.

Samuel Weigley

Follow him on Twitter: SWeigley

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