I happen to be working on this area right now so I will confirm this later, but it appears IB is watching the live data and when it sees a trade...
Tommaso, Are you using SMART for downloading market data? If so try using ISLAND or some other high volume ECN instead. That might also cure...
Some exchanges do not have native support for stop orders so IB simulates them. Is the order with "IB" placed on a different exchange? If so the...
You might have more luck with that question in IB's TWS API forum located here: (registration required)...
There was a post here by SideShowBob earlier this month about hosting his ATS on http://vpsland.com. He was using http://www.1and1.com but was...
I continually read these posts telling me how bad IB's data is and that is not my experience at all. The realtime data from IB although not...
I think you're on the right track. My backtesting framework is written using IB's api and my approach is to save IB's market data exactly as it...
Sorry I missed that. Must have been my bad character encoding. :)
I found a fix in case anyone else is having this problem with FireFox on ET. Under the menu item "Tools" select "Auto Select" for Character...
Thank, I guess there is something bogus with my machine. I'll try the FireFox site.
My only beef with FireFox is that it doe not show certain characters on some web sites, ET included. What do you see in the lower right side of...
What framework are you using if you don't mind me asking? Does it allow you to use the same exact data for real trading as for backtesting? In...
Unlike most systems I am downloading ALL the data including ask/bid. This is for an ATS I am writing from the ground up, I probably should have...
I agree. I am moving to futures. It might be nice to test what effect the underlying index or stock price movement has in relation to a future....
Here are some more results since my last post focusing on IWM. Rather than using SMART for the exchange I monitored each exchange individually....
Are you saying I only look at bid/ask crossing my limit price without taking into account the price and size of actual trades? That might work OK...
With limit orders the question is would you really have been filled at that price. That depends on how many were before you in the queue when you...
IB's market data stream contains ask, bid and last price plus volume info so there should enough data to make backtesting a good approximations of...
So are you implying smart fund managers leave to make their own personal fortunes and the managers left behind are the under-performers? It seems...
Change your simulation to use a billion or two as starting equity and see what your positions sizes would have to be. Generally, what works for...
Separate names with a comma.