Stez

Amazon Earnings Preview: How Long Before the Jig Is Up?

If you want to short why not buy a long dated out of the money put.
Thereby you set a stop with regard the amount of money
you have at risk. At some point they will be found out and gap lower
and you have a time frame to exploit it if you are right.

Its the method that Nick Taleb (Black Swan) uses so that when some sense returns to the market with regard this stock's valuation you make some money if correct.

Hedge Fund Tracking: Lone Pine Capital (Steven Mandel)

It's good that you are tracking these companies. Really saves time to quickly catch up on fund moves here.