Erroneous move, which was made considerably worse by my entry error with the IB system, and the commission structure of IB. I lost an additional $297 because of forgetting that IB's system does not assume I mean to sell based on my position size (sold 100 instead of 10,000). I also paid a $97.85 commission. People seem to love IB, but I think I have to ditch it. I would call this a loss of $796 because of my own bad reasoning then a loss of $395 because of the platform/broker being wrong for me.