I came home last night to calculate my profit and loss and something was clearly off. I went to check all of my transfers to make sure nothing was pending that I wasn't counting, and, after a ton of digging, found off market transactions in my log at Trade Hill:
June 10, 2011, 7:41 p.m. Obtain: 83.9000 USD Gave: 10.0000 BTC 0.4531 USD Commission
June 11, 2011, 1:44 a.m. Obtain: 215.8200 USD Gave: 23.9800 BTC 1.1654 USD Commission
These trades are clearly WAY off market considering the price was roughly $22/btc at the time (you can see it from the surrounding transactions in my history, but for reference, this was last night). In fact, it would have been impossible for me to have even executed at these prices if I wanted to at the time because the order book would not have let me. The first trade means that I sold 10 BTC and $8.39 per coin, which, given that there were multiple orders in the order book between the high bid at the time of at least 20, clearly does not make sense. The second trade implies an exchange rate of $9/BTC. This accounts for the ~$600 I'm missing in profit and loss. Has anyone else experienced this? It's clearly wrong. And it's not as if I fat fingered something and executed at off market rates - given the depth of the order book at the time it wouldn't have even been possible.