yes.
rules say your shares can't be used (as house inventory to float short), if they are themselves up for sale.
however, your broker has discretion as to what they will accept to post as being "for-sale" if it's "too high". and they generally won't ever tell you as a lowly cannon-fodder retailer what "too high" is, because that would let you in on a glimpse of the full order book.
they might take a sell order from you at $5 and post it, but not at $85 or even $35, for example.
there isn't really a way for a long to screw the shorts using a protective sell order and win, without exposing yourself to the chance of getting taken out when PTK pops.
hope that helps.
best luck with your investment(s).
R.
