I have some open positions in ESH10 & NQH10. I was looking at the open positions list in the email IB sent the night of 12/31, and the closing prices are as follows: ESH0 close: 1,110.7 NQH0 close: 1,858.75 What prices are these? As far as I can see, ESH0 & NQH0 closed at 1,113.25 & 1,867.00 respectively. Why are they off so much? Also, how can ESH0 even have a price of 1,110.7? They move at .25 increments Edit: Ok. These are "settlement prices". Actually the ESH0 should be 1,110.75 (per CME), but okay. Someone kindly explain why "settlement prices" are so much off from "closing prices"? Thanks! Edit2: http://www.cmegroup.com/market-data/files/CME_Group_Settlement_Procedures.pdf wtf? I can't trade at settlement prices; why mark me to it?