Some stocks dipped this week. Some corrected. But three health-care stocks, in particular, were downright crushed.

This week's biggest loser also ranked among the worst-performing stocks from a couple of weeks ago. Momentum works going up -- and going down. Another stock took a beating the old-fashioned way by reporting disappointing earnings results. Our third horrendous health-care stock could be still feeling the heat from attacks by a couple of firms suspected of being linked to short-sellers.

Which three stocks got crushed this week so badly? Find out by watching the following slideshow.


Keith Speights and The Motley Fool have no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't 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.