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Date/Time: Sun, 19 May 2024 06:58:51 +0000



Post From: Interactive Broker Trade Query

[2016-12-20 14:51:28]
User94740 - Posts: 333
I had also contacted SC and IB about similar situations. Response was similar. My conditions: I had 6mbps to work with for sending orders to Chicago from Spain and you have to remember, there are certain times of the day where internet traffic is substantially higher, so I was working with maybe 3mbps or even less. Nonetheless, I have had similar situations in which I noticed the market going against my OCO, so I might flatten the position earlier. Many times the market had already hit my stop while I was flattening my position and due to latency I had sent quasi another order by flattening. Sometimes TWS was so slow to register the stop I then reacted by trying to flatten the position even though it had already been flattened and once again was in the market. So, I had two situations: I tried to be preemptive or TWS was too slow to show the flattening. Also, if I am correct, your orders are "not" in the order books, but are kept on the platform, so if you have a fast moving market, then this can also cause trouble. Reaction time between TWS and SC should be ok, but there is always some delay though it might be minute. I am now trading with fiber optic so my orders are working. My TWS platform was also losing the connection quite often. Speed is one part of the equation, so if you are wrong on the direction, then it is imperative to be able to adjust quickly! I just did a test for latency and at 148ms to Arlington, Illinois.