The Japanese markets are liquid; just how liquid ask anyone who has placed an out-of-whack order and got hammered immediately. Mizuho is probably the most famous case in recent years (they mistakenly offered to sell 610,000 shares for 1 yen rather than 1 share for 610,000 yen! --- I think it ended costing them some $300 million), but there are others.
Why we love the Mizuho Securities 40 billion Yen data entry error
Alright! I can see the OPEC demanding trades in yen at the Central Japan Commodity Exchange.
yitbos