......Led,,,,,,, hummmm,,,,,,I have thousands of shares in my Canadian margin account as does many investors,,,, shorts can have them all,,at any time,,,,,and really that provides a very healthy market....,and you will be very happy some day when RVX spikes well above the sensible which we will call irrational exuberance when actually it will probably be shorts under margin call,,,,,,,that 200% is darn hard to swally when a spike happens like the $2.47 the other day,,,,any stock I shorted ,,it was just a simple matter of clicking the button "sell short" and voila,,,,,,the quantity was transacted as quickly as any other transaction,,,,,,,,,,,,,,,,no delay,,,,,,,,,,,,,,,no middle man,,,,,just a click of the button,,,,,,shorts in RVX are not retail is my guess,,,,,,,,as the margin on penny stocks is probably about 200% ,,,,,,,,,,,you would be smarter to short a $6 stock than us at a measly $2<...........jmo