Hmm... that's interesting, I didn't know that. I think I will check into that a little more. Thanks.Quote from Pa(b)st Prime:
On the last trading day of each quarter (in fact it might be each month) the CME settles Index futures at fair value to cash, irregardless of what price those contracts traded after 3:00pm Chicago.
Quote from chanelops:
Thanks to Pabst Prime's information, I was able to locate the following FAQ on this subject:
http://www.cme.com/trading/prd/equity/fairvaluefaq.html
I think this fair-value settlement process is the reason for the effect I noticed. Now that I know it happens every month, I'll be on the lookout for it.
Thanks to Pabst for the info.
