S&P Futures

I am curious if S&P Futures can be tracked from Friday to Sunday. I am supposing they cannot be traded, however is there a website that shows any change during this period.

Any help is appreciated. pS

 

globex is closed so they are not traded

 

Thanks, I take it any change won't be known until the open Sunday?gA

 

Mkt opens on Sunday night. Any change would happen at the open.