i apologize for the OT but i'm hoping someone can answer a "short covering" question not related to kry...

if someone holds a short position in a stock that gets delisted, does'nt that person have to cover the short within a certain matter of time prior to delisting?

the reason i ask, FNM is being delisted (quickly) and still shows 130+mil shares short...

the volume has been pretty anemic recently...could this inadvertantly cause a short squeeze?

thanks in advance