I just recently had an experience with options traded on two different primary exchanges. They are the OIH and the XAU. Both last week had nice runs, both achieved ITM status with the same amount of time to expiration remaining. The major differences were the primary exchanges that they trade on and the specialist on those exchanges and how those specialists handled the increased volatility. The experience has taught me that I no longer wish to trade options that are listed on the PHLX exchange as the specialist in the XAU options is definitely manipulating the market IMO. I felt this to such an extent that I called the exchange and was blown off. This was common to the PHLX market regulation office, as they refused to return calls. The more someone wants to sweep something under the rug, the more I am convinced I am right...so I called the SEC...explained the situation to the SECs market regulation...they agreed with me and asked that I put it in writing (email) which I did. Now to the reason for this post...I am going to look for other trading vehicles and am considering the DIA, SPY, and NDX which all trade on the CBOE. Would some of you that trade these vehicles regularly please comment on your experiences, volatility, etc so that I may find replacements for the PHLX vehicles that I have been trading. Or if you feel there are better opportunities that trade on the CBOE primarily please share those with me.