Recent content by ddouglas

Data subscriptions are normally a user-defined parameter from the TOS "settings" window. I have a hard time believing that TDA changed it for you. Data-agreements do change, but normally you receive an email that says "if you don't notify us to the contrary, your continued usage of our data...

aaand . .

Ok, let's observe a couple facts here. First, You're accusing me of not knowing what the e-mini is after I posted two separate links to contract specs (one for ES options, the other for SP options). Think that one through next time. Further, SPX is NOT the same as SPM2 futures or ESM2...

He was shown to be a fake who was trading on SIM. Search around this forum, & you can find the screenshot evidence of fake limit orders of 50+ lots in his DOM, when there are only 19-20 showing at that price level in the actual order book. Nothing against Dukas - I just wouldn't point to...

My point exactly - and the terminology used in the posts never gives the impression that this changed. Apparently it is understood now. The question now is: if you want to trade S&P500 futures-options, why consider anything other than the ES? It's one of the most liquid contracts in the...

All is clearly not well understood. You asked for help finding SPX options on CBOE, and are now looking for them under SPM2 on CME. Spend an afternoon Googling all of the terms in your question (which i quoted above), until you realize what is wrong with it. The answer should become...

I repeat myself: Index, not future. Further explanation: (you should know this already - it is your basic responsibility): SPX = S&P 500 index. SPY is its ETF that trades like a stock. SPX and SPY options are traded on CBOE (as well as SPXPM and many other related products). They are...

Index, not future.

I suspect that if it were so simple as port-blocking, sophisticated information technology companies like Nanex would not be writing articles of concern about it.

The problem, according to the Nanex article, is system stability. Massive quote-stuffing ties up so many resources that the system engines bog down for all stocks processed by that engine, and potentially could cause it to collapse (not my opinion - stated in the article). If this is not a...

How is anything accomplished by this? 47k+ quotes in less than a second, all within a $.01 range, but no trades. Don't you have to execute a trade to make money? Unless maybe your system depends on bogging-down the quotes in one stock as you trade in another . . (?). Maybe holding the...

Bone is not quoting it. CME is quoting it. It's an exchange-listed spread.

That sucks - don't know what to tell ya. Sorry.

It's on there - available for live-streaming. I just checked @ 11pm EST (right now). Just search, & it should show up as the first or second result.

Just for fun, I took this screenshot from TWS at 2:36pm EST today: Full-size futures on the left, Micros on the right. Edit: That's the bid/ask - I should have said that.