Partly because yesterday was a so-called "5/10 day" (a date ending in "5" or on a multiple of "10" on which Japanese companies often settle foreign exchange payments), the USDJPY reversed direction and rose to trade in the 143-yen range, after having bottomed at 142.85 not long after GMT 22:30. It reached a high of 143.70 not long after GMT 08:00, and then fell back. Trading for the day closed at 142.42 yen.

Today the USDJPY fell sharply in the morning session, and by around GMT 01:30 had marked a low of 141.50.

Looking at the daily chart of the USDJPY (as of GMT 02:55 on September 11), the lower wick of the candle just barely dipped below the August low of 141.68, but if there is a full-fledged breakout we could see another leg down.

In addition, according to a flash opinion poll conducted by CNN after the U.S. presidential debate, 63% of respondents believed Kamala Harris won the debate, and 37% believed Donald Trump was the victor.

Market attention will be focused on the CPI later today.

(20-period Bollinger Band, showing ±1 and ±2 standard deviations)

Today's main economic indicators are as follows.

• GMT 12:30 U.S. August Consumer Price Index (CPI, MoM)
• GMT 12:30 U.S. August Consumer Price Index (Core CPI, MoM)