In this video from Thursday's Market Checkup, Motley Fool health-care analysts David Williamson and Max Macaluso dive into the biggest stories impacting health-care investors on the market today.

In this segment, a look at the biotech losers on the market during the last two days. InterMune (NASDAQ:ITMN) pulled back 10% yesterday, down a total of 22% during the last five trading sessions, as investors remain concerned about new competition for Esbriet, which is the company's idiopathic pulmonary fibrosis drug. Enanta Pharmaceuticals (NASDAQ:ENTA) is also down 10%, dragged down by the continuing investor excitement surrounding Gilead and its hepatitis C treatment. Enanta is partners with AbbVie and will get royalties off of AbbVie's own hep. C drug regimen, but investor enthusiasm may be siding with Gilead at the moment. David sees this battle as coming down to relative pricing, and will be watching that closely. And finally, GW Pharmaceuticals (NASDAQ:GWPH) fell by 7% after reporting solid earnings that beat on the top line yesterday, after its tremendous run up of more than 500% in the past six months, David sees this as potentially a case of investors taking some profit off the table.

So what's the best way to for investors to play the volatile biotech space?
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David Williamson owns shares of AbbVie. Max Macaluso, Ph.D. has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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