In this video, health-care analyst David Williamson discusses the day's three biggest losers in the sector, including Novo Nordisk, which dropped more than 8% in advance of its FDA advisory committee meeting for long-acting insulin Tresiba on Thursday. Watch and find out why investors are feeling glum after reading the FDA's briefing documents and catch up on the day's other big movers.

Brenton Flynn, David Williamson, and The Motley Fool have no positions in the stocks mentioned above. 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.