Most stocks have an options skew such that the lower strikes trade at higher IV's, and the higher strikes trade at progressively lower IV's. A remarkable exception at the moment is MYGN. In every month, the higher the strike, the higher the IV. I know that they're expecting a big announcement on their Alzheimer's drug Flurizan, and so people are excited about possible upside. But the same is true of WYE and ELN - and those stocks have a skew like any other. So why is MYGN so different? I suppose one possibility is insider trading. I come from the futures world where that isn't much of a factor, so I don't know how much that can influence the skew so far in advance (the MYGN skew has been like this for some time). Any thoughts?