That HLF stock is in a interesting point right now. I think the stock has little to no upside all the way to the first earnings release after the FTC changes (Q2 release on Q3 2017 I believe), no long will keep buying at higher levels without the confirmation of that release. But longs are taking 100% of the downside until then. So, its a pretty bad long right now(I suspect this was part of the reason why Icahn wanted out)
Yet I believe the stock will be a buy a month or so before that release (and a long into the release). The reason is because if the US business starts to tank, there is still a long way for the total collapse. Global regulators need to start to act and this will take time, maybe even years. 80% of the revenues come from that. But if the US business holds up (and Ackman is wrong), the lets squeeze Ackman trade will start and he is likely (in my view) to get out of the stock. Judging by the Icahn block trade shop ($10 or so bellow the market price), Ackman will have to pay up $15-$20 to get out. So either the stock tanks a bit (say to $40-$45) or pops a lot ($100, is not out of the question). So I will be hedging into that event. Either with HLF calls or with stock. I will do it 1 month or 2 before it because I suspect the smart money will see that and they will be buying into the release