General Discussion

A P/E of 120?
A market cap that is 8.8x assets (and their assets include about $6 billion in intangible assets, so that factor is higher)?
The cap is 9x revenues.
And, competitors are gaining ground in virtually ever segment of their products.
The answer to your question is "because".
It's way overvalued based upon some "pitential" based on promises on innovation they've been making fie 7 or 8 years, and the big investors don't want to shed substantial fractions of their holding because it could trigger a sell-off.
If it makes you feel better, the stick price is down twenty-five & a half percent YTD. At least that makes some sense.