I don't think today was much of a short squeeze. Frankly I would doubt that there are many large "naked short" positions out there. When the short interest is reported by various agencies it reflects the total short interest including all "hedged" & "boxed" positions. There is not nearly enough bad news, doubts or nasty rumors out there to make this a serious short. Of course there are always a few people like our "mid-east-flyer" friend who like to swim upstream.