Okay got a response from AMP.
"
The clearing fee is the clearing fee that AMP charges you to clear your trades. You must go through a clearing house or FCM, a Futures Clearing Merchant, whenever you trade futures.
AMP is an FCM, so that is the clearing fee we are charging you to clear your trades.
"
So now I'm wondering two things:
1. Why does the CME call their fees "Clearing & Trading" fees and AMP is charging clearing fees also?
2. Why doesn't Overnight get charged "Clearing Client" fees also?
Hmmm