Yen is one of the most traded currencies in the world, especially due to its low interest rate since the Yen is used in carry trades. Recently the Bank of Japan has expanded their purchase of Yen, hoping to overturn the deflation tide to inflation. Doubling this money supply is devaluing the Yen, boosting exports; but, increasing prices of imports at the same time, especially for commodities.
The British Pound slumped amid “hard Brexit” fears in Asian trade. Comments from Bank of England Governor carney may amplify selling pressure.