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Yes, I suppose I could call OH and possibly even get the right answer. However I was hoping to get some feedback from actual users. For instance: how likely am I to get price improvement, will I get quick execution, etc. The pricing seems cheap compared to what I've paid elsewhere. However if I...

Curious about the quoted pricing for spread trades at OH. Their website says "$12.50 + 0.15/contract". If I trade 20 x iron condor (4 legged spread), would that count as 20 contracts or 80? What would my true all in cost be, including all the little extras such as exchange fees that are passed...

Really? Then why is it Trade King filing suit and not Broadridge I wonder?

Yes, thank god for Peak6. With apologies to Churchill, the Penson acquisition is perhaps the least cynical act in history.

Thanks for pointing out that the peak6 investment is debt, not equity. Could the discrepency be due to the nature of the debt? I.e., distressed debt is often convertible to equity, particularly when the note holder has a strategic interest at stake. Peak6 owns OptionsHouse, which clears through...

The real issue is buried in this article at Reuters: "OptionsXpress shut down OX Trading in February in anticipation of the Volcker Rule, which bars proprietary trading by bank holding companies". Thank you Dodd-Frank, no more price improvement on option trades.

Of "social" benefits I am not qualified to respond - perhaps you could check with all the various market participants to see if they felt like their self-confidence was affirmed or something. However, I would think that the "economic" benefits of an orderly, highly liquid option market in...

SIG and Wolverine are big equity option players. Not sure about the rest. Infinium and DRW are more futures, right? I've heard of Optiver but only in passing. That's actually an interesting question - who are the biggest equity option market makers by market share? I'm guessing GS, Citadel...

Thanks for replying, hippie, I'm not sure I fully appreciate your point about options occasionally ticking ahead of a stock. Jerkstore, above, gave a ballpark guesstimate of <10 msec for the best architectures to paint an option chain in response to an equity price tick. The point of my post is...

After going over the new SEC Market Access requirement, I believe that complying with the new regulation will *significantly* increase order latency. According to this http://complianceinsights.typepad.com/rule_news/2011/05/new-sec-rule-15c3-5-supervising-market-access.html: "These firms...

@PocketChange: The CTFC complaint alleges (and the subsequent judicial order appears to confirm) common ownership of the two accounts by a single named individual. It even mentions that a single IP address was traced as the source for near simultaneous order entry into both accounts...

@PocketChange: see the CME rule on wash sales. These trades clearly meet this definition are therefore prohibited under exchange rules and subject to prosecution by the CFTC. Here's a link: http://www.cmegroup.com/rulebook/files/CME_Group_RA0913-5.pdf

Nitro, Sounds like you have been looking at this space in detail. Writing a mass quoter is big deal - lots of moving parts. You say you are doing this in FIX - don't you find that message latency makes it hard to keep up with the market? How many option chains/underliers can you handle...

I think RCG is in the low-latency, fixed income space, as well as Citadel. BTW, last I heard is that Breakwater/P6 deal was back on.

OptionsHouse was built on top of/along side some fairly sophisticated in-house trading tools at PEAK6. For instance, I believe their risk viewer is pretty much a port of the windows-based risk analysis tool they use internally, albeit somewhat dumbed down. They know how to build tools, however...