Yen Collapse out of futures trading hours.
Down over 300 points to an all time low of 76.44, the Japanese Minister of Finance is still in Bed, so the promised intervention is hours away.
Options related stops have been hit in the cross rates, causing other currencies to go haywire on the forex.
Look for gap UP in Swiss futures at the CME re open, and a gap DOWN in AUD and CAD futures. Nothing too serious, upto 100 ticks.
Euro and GBP are volatile, but as yet have not moved far from CME closing levels.
I reckon someone somewhere has lost all their cash on this, and that someone maybe a large bank - or even banks....