what's the difference of OEX between OEF? ALL are s&p100,and all are American-style exercise? then,what's the difference?
OEF http://us.ishares.com/product_info/fund/overview/OEF.htm?qt=OEF OEX http://www2.standardandpoors.com/po...ices_100/2,3,2,2,0,0,0,0,0,2,1,0,0,0,0,0.html OEF is an ETF, with stock-like pricing, liquidity, and payable dividends. OEX is an S&P index, tradable through index options. All aspects of options, including strike price, expiration, dividends, offsets, liquidity, etc apply.