Barely has the USD/Renminbi (or RMB) contract started to trade on the CME and already the exchange decided to hike the margin by 18.5%. And not only: in a broad action across the board, the CME hiked margins in some key FX contracts, including Aussie Dollar, Yen, Canadian Dollar, Forint, Zloty, and the Koruna. In addition, CME hiked two Interest Rate products including EM and I3. So if anyone was wondering why the AUDXXX dropped after hours, now you know. (full story)