I had two orders which I believed only one should go through (done this method numerous times I mean one order gets canceled after another order gets executed because of margin). But because of market action and maybe that I did not set my bids that right, both went through at the same time. I was expecting if one goes through and the other is still open, it should be canceled because of margin problem. Since both went through exactly at the same time, the second order that you noticed was actually a liquidation. So the second order that had higher commission was a market order set by IB.No. I was actually wondering how you lost money on that trade when the contract price was unchanged. You lost a few bucks due to the higher commission. You paid $0.42 per contract to open the trade at CBOE, but $0.79 per contract to close it at BOX.
Was that a limit or market order that you used to close the 13 contracts?
This particular question is actually relevant to the topic of this thread. I will explain why in a future post.
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