I have tried to use IWM on several occasions to hedge my small cap longs, but have been unable to borrow the stock...which is very surprising given the liquidity you mentioned. Have you ever tried to short IWM and have you had this problem, or is it just my broker? TIA.
You are right, it seems even more volatile percentage wise than the QQQ, but not by much. Since many of my stocks are QQQ type, it make sense to hedge with the QQQ.