One theory would be that it is more difficult to track the larger index. However, that is not true for RUT or IWM options, so that is probably an incorrect theory. Also, the ES options don't have the problem either.Quote from FT79:
Does anybody know why the spreads of OEX index options vs. SPX index options are much narrower? They are both single listed but it looks like the OEX are easier to trade for (small) retail investors compared with SPX. Thanks, FT79
Quote from nitro:
....ES options have 30% to 50% tighter spreads than SPX options. SPX options are meant for institutions.
nitro
Quote from FT79:
Does anybody know why the spreads of OEX index options vs. SPX index options are much narrower? They are both single listed but it looks like the OEX are easier to trade for (small) retail investors compared with SPX. Thanks, FT79
Quote from cszulc:
The OEX trade on a hybrid's system that has more electronic market makers and less pit traders (last time I was there in mid-August they had about 15, when it wasn't on the hybrid system there were 300). Supposedly the SPX pit was supposed to go towards a hybrid system this month, but not sure if thats delayed or not.
Ever think of trading the XSP, the mini-SPX that has narrower spreads and 10 point contract intervals vs. 5 with SPX. Might be better until the SPX goes hybrid.
Quote from opt789:
There are ways to get better prices, but they do not pertain to your current size. My advice for a small trader is look to another index like the NDX.