Healthcare stocks remained flat on Tuesday morning on Wall Street.

More broadly, the Dow Jones Industrial Average was unchanged, the Nasdaq was steady and the S&P 500 remained flat.

Some of the biggest gainers among healthcare stocks include:

• Thoratec Corp (THOR): THOR stock is up 10.5%, marking the third consecutive day the stock has increased.

• Neogen Corp (NEOG): NEOG stock is up 5.5% today.

• Masimo Corp (MASI): MASI stock is up 6.7% today.

• Lannett Co Inc (LCI): LCI stock is up 2.7% today.

• Wright Medical Group (WMGI): WMGI stock is up 2.2% today.

• Anacor Pharmaceuticals (ANAC): ANAC stock is up 1.3% today and up 116.1% in the last month.

• Tornier N.V. (TRNX): TRNX stock is up 1.6% today.

• Seattle Genetics (SGEN): SGEN stock is up 1.4% today.

• Horizon Pharma Inc (HZNP): HZNP stock is up 1.5% today and up 22.6% in the last month.

• Impax Laboratories (IPXL): IPXL stock is up 1.6% today.

Some of the biggest losers among healthcare stocks include:

• Exact Sciences Corp (EXAS): EXAS stock is down 6.5%, marking the fifth consecutive day the stock has decreased.

• Examworks Group (EXAM): EXAM stock is down 5.6% today.

• Centene Corp (CNC): CNC stock is down 3.5% today.

• Newlink Genetics Corp (NLNK): NLNK stock is down 2.9% today.

• Halozyme Therapeutics (HALO): HALO stock is down 3.1% today.

• Amicus Therapeutics (FOLD): FOLD stock is down 2.6% today.

• Acadia Pharmaceuticals Inc (ACAD): ACAD stock is down 2.2% today.

• China Biologic Products (CBPO): CBPO stock is down 1.9% today.

• Repligen Corp (RGEN): RGEN stock is down 1.8%, marking the third consecutive day the stock has decreased.

• Celldex Therapeutics Inc (CLDX): CLDX stock is down 1.6% today.

For more information on the best stocks to buy right now, check out the latest commentary on InvestorPlace.com.

And for more on the hot stocks moving most on Wall Street right now, check out our archive of daily market movers by sector here.

Editor’s Note: Returns for the fastest-moving stocks listed here are based on share prices 20 minutes prior to publication of this story.