Herbalife (HLF) up 23% premarket following in Carl Icahn's Valentine's Day Massacre of Bill Ackman. Kid Dynamite notes Icahn has an economic interest in 13% of HLF, but does not own all that stock. Instead he has a combination of long stock, long calls and short puts. His exit strategy for the position is in question, but it's clear Icahn's goal is to create a short squeeze. Grab the popcorn.