somebody posted this before:
http://www.cboe.com/micro/weeklys/introduction.aspx
CBOE offers the following Weeklys options (as of July 16, 2010):
* SPX : S&P 500 Index Weeklys with European-style options on the S&P 500 Index with Friday A.M. settlement. Last day of trading is a Thursday.
* NEW! DJX : Dow Jones Industrial Average Weeklys with Friday A.M. settlement. Last day of trading is a Thursday.
* OEX Weeklys : One-week, American-style options on the S&P 100 Index with Friday P.M. settlement (last day of trading is a Friday).
* XEO Weeklys : A European-style version of OEX Weeklys.
And Weeklys on Exchange Traded Funds and equities. As of July 5, 2010, these included the following::
* SPY - Standard & Poor's Depositary Receipts
* QQQQ - Nasdaq-100 Index Tracking Stock
* IWM - iShares Russell 2000 Index Fund
* GLD - Options on SPDR® Gold Shares
* XLF - Financial Select Sector SPDR
* EEM - iShares MSCI Emerging Markets Index
* C - Citigroup Inc
* BAC - Bank of America Corp
* AAPL - Apple Inc
* BP - BP PLC
* F - Ford
* GOOG - Google Inc.
* AMZN - AMAZON.COM Inc.
* FAS - Direxionshares Daily Financial Bull 3X Shares
* FAZ - Direxionshares Daily Financial Bear 3X Shares
* MSFT - Microsoft Corporation
Weekly options on ETFs and equities are physically settled, American-style exercise with "P.M." settlement and the last day of trading generally is a Friday.