I'm sure HN readers are too wise to short, but just in case anyone were tempted, the longest I've seen a short squeeze last has been HLF, at 5 years. Assuming

I'm sure HN readers are too wise to short, but just in case anyone were tempted, the longest I've seen a short squeeze last has been HLF, at 5 years. Assuming you are not a billionaire, "the market can remain irrational longer than you can remain solvent"; in this case the participants of the "billionaire's poker" game were Ackman and Icahn.