Japan finance minister Suzuki speaking on excess FX volatility

Suzuki is speaking in general terms, but the between the lines message is him expressing concern about the rapid fall of the yen and a threat that authorities will take action if needed. We've seen this time and again during the yen's drop in past weeks.

• excess FX volatility Volatility In terms of trading, volatility refers to the amount of change in the rate of an index or asset, such as forex, commodities, stocks, over a given time period. Trading volatility can be a means of describing an instrument’s fluctuation. For example, a highly volatile stock equates to large fluctuations in price, whereas a low volatile stock equates to tepid fluctuations in price. Overall, volatility is an important statistical indicator used by many parties, including financial traders, analysts, In terms of trading, volatility refers to the amount of change in the rate of an index or asset, such as forex, commodities, stocks, over a given time period. Trading volatility can be a means of describing an instrument’s fluctuation. For example, a highly volatile stock equates to large fluctuations in price, whereas a low volatile stock equates to tepid fluctuations in price. Overall, volatility is an important statistical indicator used by many parties, including financial traders, analysts, Read this Term and disorderly FX movements could have adverse effects on the economy and financial stability
• will adhere to G7 agreement on forex
• will respond to FX as appropriate while communicating closely with the US and other coutnries

I posted last week on one analysts thoughts on when intervention might get serious:

USD/JPY intervention unlikely ahead of 130

• And perhaps not until 140!

USD/JPY update: