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Madgenius, This is all very interesting. I have always thought that MMs hedge their delta by taking positions in the underlying. Otherwise, what do you do if you come to work one day and the stock gaps 10 points?

Who hasn't? But isn't it true that market makers have a very low percentage of losing trades?

I know lots of people who are currently earning between 1% and 1.5% interest on several million dollars each.

Let's see. I send an order to sell (long) 200 shares of JNJ at 57.88 when the quote was 57.88 x 57.90. A few seconds go by and the quote goes to 57.90 x 57.93. A couple of minutes go by, lots of trades (a few of them over 10000 shares, most of them between 100 and 2000 shares) at all kinds of...

You should probably start with some sort of chi-squared test. But first you will need to define where you want to look for correlation.

Finally a creative post! Keep up the good work.

I don't think anyone will ever announce a victory in Baghdad. After a few weeks and a few hundred dead American soldiers, the CENTCOM briefings will gradually shift from "We are within 50 miles of Baghdad" to "Who needs Baghdad as long as we control the oil wells". Or maybe they will keep...

TradeSports is way past cool. But of course $1000 is a large order.

It seems like we should always check the other stations before reacting to the FOX hype.

I don't know how you guys do it, but when I scalp options, I balance my delta using the underlying, since it is usually a lot more liquid and has acceptable spreads. One thing I am thinking now is that I might do just what they want customers to do: Before I send in my order I will calculate a...

There is one and only one reason for that: Because customers are not allowed to. (Some also don't have the equity that would be required to do that kind thing in a retail account, but others do.) Anyhoo, cancellation fees for those "electronic abusers" would NOT have to take the form of...

Who hasn't?

This is a tough one since your original post doesn't seem to contain any questions. But I'm gonna go with the idiot thing.

If your degree of madness depends on who started the thread you must not be a very good trader. Am I right?

But nothing anyone does can achieve anything. Sooner or later we will die. And sooner or later every trace of us will vanish.

I wouldn't even know how to begin a response to this post.

Oh yeah? We'll see about that...

Be thankful that it didn't read "You blistering idiot! What makes you think we will let you worm trade this stock?"

I don't think so. If the war takes longer than expected, he would not benefit from his portfolio's performance. And as soon as the war is over, which is the most likely time for his return, his portfolio would be in trouble, and by the time he gets to log into his account he will be lucky not...

Interesting. IB has already admitted that they have a diaplyer (see TWS bulletin on 01/06/2003, referenced in http://elitetrader.com/vb/showthread.php?s=&postid=181022&highlight=diaplyer#post181022 Now they send in a diabolic diathetic whose diacritical diatribes are so diametrically opposed...