Loop Capital Markets, a LLC based in Chicago. Digging deeper we also find that the CME has headquarters in the Chicago Loop. The CME is responsible for clearing commodity contracts, including financials, agriculture, metals, and energy.
http:// www.cmegroup.com
I missed the analysis yesterday. Can you provide a link or the thread #?
The exchanges provide price limits, although I can't seem to find what the actual gold contract price limits are. If gold were to go up that much in that short of a time my guess is that the exchanges would suspend trading. Gold market fuckery is huge, and has been for 20+ years.