IB demo


Active member
Hi all

I have been playing with the IB demo this afternoon, and notice that the spread on ES is nearly always 0.5 points. Is this a peculiarity of the demo as I would expect it to be mostly 0.25 points?

Also I am finding that it is not very easy to use in general. If I want to trade anything other than 1 contract at either the bid or offer price do I always have to bring up the ticket and change the details or can I set defaults for the number of contracts or order type?

The depth of market for ES is only showing 1 level (ie the current bid and offer prices) - is that the same on the real system?

Normally I would trade FTSE fut, but I don't seem to be able to do that at all on the demo. Is the real system very different or easier to use (or am I just dim?!!)?


Active member
OK, so I have now downloaded TSIm and had a quick play with it this morning and it is certainly a much more user friendly interface. Much respect to Henry for producing it.

So do people use Tsim for live trading? I see that one of its limitations applies to the FTSE (prices sometimes incorrect). Has anybody used it for live trading the FTSE and had problems?


Active member
waytogo, I definately wouldn't use it for FTSE Futures in it's current version, stops and targets will be wildly wrong. I will at some point put in the workaround the JonnyT has suggested, but at the moment I don't have the extortionate LIFFE feed on my IB account and I wouldn't add anything to TSim without testing it with my own money on the line first :)



Senior member
Henry, what's the problem with Ftse Liffe please? I've used it on IB.


Active member
Fill prices for FTSE Futures (and presumably all LIFFE products) are randomly reported back by the TWS API divided by 100. Thus if you use TSims auto stops / targets, the stop / limit price may be at a silly amount. It's easy enough to fix, but like I say, I don't want to write and release a fix without testing it firsthand, and because of the way the demo account works it's not possible to test on that.
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