Best brokerage for SPX options trader

General idea is that you can get an improvement if you put the dealer in comp with other dealers (ie you are covered by multiple desks directly). If you get your execution process well figured out, you can literally trade at mid every other time.

PS. I realize that my experience is not applicable since the dealer would not be quite as “friendly” to a smaller account
For sure. I'm talking 20-50 SPX contract spreads, where the desk is death. I think the smaller size and the fact that they're spreads are a factor. Also, the electronic SPX market is just really efficient, I pretty much always get the mid or just off mid there if it's a true mid and within a reasonable distance from the current market, so not much a desk can improve unless you want to move really big order without impacting the market.
 
A dedicated SPX book and trader is worth their weight in gold. Yes you need size.There is more OI upstairs than in the pit. No good if the CME is down, but then again nothing is.
There wouldn't be dedicated desks and OI upstairs if it didn't serve a purpose. Sort of the dark pools of SPX except with an S&P license.
If the pit serves you well - then by all means stay with it.
It's also very easy for the desk to carry OI and hedge as long as the CME is alive. Plus the pit leaks information when it shows an order.
 
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