Japanese Yen gives back most of its rally as Fed hike talk grows

USD/JPY climbs above 158.00 and its 200-day average as Fed hike talk grows.
Japan spent a record ¥15.4 trillion buying Yen from July 30 to August 26.
BoJ's 1.25% rate takes effect Thursday, when Tokyo reopens after holidays.

Joshua Gibson FXStreet

Holding up the Yen is costing Japan more each time and working for less time. USD/JPY is trading above 158.00, on track for its first daily close above its 200-day average since September 2.

Japan's Finance Ministry bought ¥15.4 trillion of Yen between July 30 and August 26, more than the ¥11.7 trillion it spent in April and May, and the US Treasury joined in on July 31. The most Japan has ever spent in a month on its currency kept USD/JPY under 160.00 for four weeks.

Japan's rate hike takes effect with the Yen weaker than on decision day

The Bank of Japan (BoJ) raised its rate to 1.25% on September 18 in a 7-2 vote, the highest since 1995, and the new rate applies from Thursday. The Fed is at 3.75-4.00%, and Fed Governor Barr argued for more increases on Wednesday. Borrowing Yen at 1.25% to hold Dollars earning close to 4% still pays.

US Treasury Secretary Bessent said on September 8 that he knew more about the BoJ's next move than traders did, and USD/JPY hit its September low near 153.00 that same day before recovering nearly three-quarters of the drop.

All of the Yen's losses since Friday came during a Japanese holiday

Japanese markets have been shut since Monday for national holidays and reopen on Thursday, the day the new BoJ rate starts. Japanese officials checked exchange rates with dealers on September 18, the step that usually comes before Japan buys Yen, and the July buying began with USD/JPY near 164.00. Tokyo's dealers return on Thursday to a USD/JPY above anything it traded on the day of that check.

Levels and bias

Resistance: Wednesday's high short of 158.50 is the first cap. Above that, 159.00 is where USD/JPY traded for most of late August, and 160.00 is where the early-September drop started.

Support: 158.00 turned from cap to floor on Wednesday. Below it, the 200-day Exponential Moving Average (EMA) just above 157.50 had capped every daily close since September 2, and 157.00 is the next level down.

Bias: Long above 157.50, aiming at 159.00 and then 160.00. The daily Stochastic Relative Strength Index (Stoch RSI) climbed to near 40 and is still rising, well short of overbought. A daily close back under 157.00 ends the long.

USD/JPY daily chart

Japanese Yen FAQs

What key factors drive the Japanese Yen?

The Japanese Yen (JPY) is one of the world’s most traded currencies. Its value is broadly determined by the performance of the Japanese economy, but more specifically by the Bank of Japan’s policy, the differential between Japanese and US bond yields, or risk sentiment among traders, among other factors.

How do the decisions of the Bank of Japan impact the Japanese Yen?

One of the Bank of Japan’s mandates is currency control, so its moves are key for the Yen. The BoJ has directly intervened in currency markets sometimes, generally to lower the value of the Yen, although it refrains from doing it often due to political concerns of its main trading partners. The BoJ ultra-loose monetary policy between 2013 and 2024 caused the Yen to depreciate against its main currency peers due to an increasing policy divergence between the Bank of Japan and other main central banks. More recently, the gradually unwinding of this ultra-loose policy has given some support to the Yen.

How does the differential between Japanese and US bond yields impact the Japanese Yen?

Over the last decade, the BoJ’s stance of sticking to ultra-loose monetary policy has led to a widening policy divergence with other central banks, particularly with the US Federal Reserve. This supported a widening of the differential between the 10-year US and Japanese bonds, which favored the US Dollar against the Japanese Yen. The BoJ decision in 2024 to gradually abandon the ultra-loose policy, coupled with interest-rate cuts in other major central banks, is narrowing this differential.

How does broader risk sentiment impact the Japanese Yen?

The Japanese Yen is often seen as a safe-haven investment. This means that in times of market stress, investors are more likely to put their money in the Japanese currency due to its supposed reliability and stability. Turbulent times are likely to strengthen the Yen’s value against other currencies seen as more risky to invest in.

Author

Joshua Gibson

FXStreet

Joshua joins the FXStreet team as an Economics and Finance double major from Vancouver Island University with twelve years' experience as an independent trader focusing on technical analysis.

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