What are typical time limits to call various exchanges to seek break of a trade for clearly erroneous? FWIW Sydney is 5 minutes. Thanks
Different for different exchanges. Most ECNs are 15 minutes, however they always have a clause saying they can break anytime after 15 minutes depending on their discretion.
Took 5 minutes just to figure out why there seemed to be no market in my trade and what I had entered wrong and then the IB useless help call. There isn't even a human being on the other side of my trade - just a computer running some kind of spread program with who knows how many legs or whatever that rolled me like a drunk. "Might want to try yer own spread mate"!