I got burned on that one too.. buy stop at 3149, filled all the way up at 3241, nasty slippage.... Looking at time and sales I see many trades going through at this level round 09.53.40, looks like many stops taken out.
Hoping to learn something.... why 3% up before my order was filled, I can see a whole tonne of orders filled before, closer to my stop price..... I spoke to IB and their reponse was they cannot guarantee stop execution price esp in fast mkts.... any ideas on how to prevent this kind of slippage next time? I gather you can't place stop orders directly on this exchange? Stop limit, but then risk it not getting filled...
second thoughts I think I'll be avoiding this market for a while.