There appears to be 2 series of INDEX OPTIONS for the IWM (ISHARES RUSSELL 2000 INDX FD). For example if you go to http://www.cboe.com/...QuoteTable.aspx and put in IWM you will see that there are 2 separate 80 Calls, one is IOWIB, the other IQQIB. Anyone know what this is all about and which series is preferable to trade - the one with the greatest Open Int.?
IWM (ISHARES RUSSELL 2000 INDX FD) OPTIONS
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