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The FX Trader: JPY intervention. It’s for real.

Forex 5 minutes to read
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John J. Hardy

Global Head of Macro Strategy

Summary:  Japan’s officialdom weighed in with stern warnings on the yen level and actual intervention, according to sources. Importantly, Japanese officials added that the US had been notified of the intent to intervene if necessary. The JPY move was significant on the back of this rhetoric, but without a supportive backdrop we’ll need to see a lot more than talk to get a bigger JPY reset.


The latest

Japan’s “top currency diplomat” sparks JPY rally on stern intervention warning. Atsushi Mimura was out early yesterday with the sternest warning yet on the intent to intervene against further JPY weakness. He not only called it a “final” warning, but said potential intervention is in line with a G7 agreement to notify counterparts, including the US when there is risk of excessive volatility. The move was well timed, coming just after USDJPY was allowed to slip well above 160.00 on the latest spike higher in crude oil price and global bond yields. From here, if the JPY is to reset significantly higher it will likely take more than rhetorical and even actual Ministry of Finance market intervention (something that may be happening as I am writing this update – see USDJPY chart below). The greatest support would be a loud signal from the US that it supports Japan’s efforts to support its currency. Also helpful would be a drop in global bond yields and a significant drop in crude oil prices on an opening of the Hormuz Strait, through which most of Japan’s imports have traditionally flowed.

ECB and BoE bring little new, but sterling outperforms. The ECB meeting brought no surprises as Lagarde and company guided for interest rate increases should higher energy prices continue to drive inflationary risks. There was an attempt at declaring no “pre-commitment” to a hike in June, but the market maintains its strong expectations for a June hike and for the ECB policy rate to rise nearly 75 basis points through the end of this year. The Bank of England sounded a more cautious tone on hiking the policy rate, with Governor Bailey saying the rate was in a “good place”. This dropped the probability of a June rate hike to about a 50/50 proposition rather than a near sure thing. Ironically, sterling rallied particularly sharply despite this dovish turn, with EURGBP pushing sharply lower and suddenly bringing the massive 0.8610 area support into view, a range low that has held since last summer.

The FOMC this week was more of a political development than a market one. At the margin, the three hawkish dissenters that wanted to remove the easing bias in the monetary policy statement was a hawkish surprise in the FOMC on Wednesday. This suggests that a Fed Chair Warsh will have to deal with a fractious FOMC if he intends to pursue a dovish path. Adding to that, Powell’s expressed intent to hang on to his Board position after he steps down as Fed Chair in two weeks appears an act of political defiance, aimed at defending the institution’s independence from Treasury. Powell’s staying blocks Trump appointing a deciding vote on the 7-member Federal Reserve Board of Governors. Historically, the Fed Chair resigns from the Board of Governors on stepping down. Inevitably, Treasury and Trump will win and the Fed is on the path to losing independence, but how difficult the process proves will provide plenty of suspense in the coming…three months, six months, year?

Chart focus: USDJPY
Note: just minutes before taking today’s chart snapshot, JPY was strengthening suddenly and brutally on no headlines – possibly intervention. The USDJPY volatility on Japan’s strong verbal intervention drove a significant move, but if we look at the level early Friday, we are not that much more than 1% lower from the middle of prior range. The technical situation is always fraught with the “artificial” presence of a significant actor (Japan’s MoF) that has an agenda to move the market. Still, at minimum, even if the yen fails to appreciate, it is difficult to see USDJPY being allowed to back up above 160.00 again from here unless the US explicitly turns its back on Japan, something that is unlikely, given the huge trade deal with Japan that includes significant inbound investment from Japan in key industries. To get JPY trending higher, we need either explicit US support for Japan’s effort to strengthen its currency or we need a sustained and large drop in oil prices and US treasury yields. Technically, we should watch whether the price action in USDJPY sticks lower rather than backfilling into the old range above 158.00. Next critical levels lower are the Ichimoku cloud levels that have not yet been taken out on the daily close – currently near 156.00, but rising slightly next week. Then there is the 61.8% retracement level of the rally near 155.30 and the psychological 155.00 level itself, possibly the last support ahead of the key 152.10 area low.

01_05_2026_USDJPY
Source: Saxo

Calendar next week: Japan Golden Week, US ISM Services, RBA, Riksbank, US April jobs report

Note that Japan’s markets are closed for the first three day of next week for the Golden Week holiday.

The state of the US economy and labor market are the focus for the market next week. That is of course on top of the swings in energy prices on geopolitical headlines from the Middle East and overall JPY volatility after this week’s verbal throwdown from Japan’s Ministry of Finance. The US employment data has confused, with firm numbers in the ADP weekly data and jobless claims. And yet the ISM Service survey for March saw the employment index with an odd and rather profound dropout to 45.2 from 51.8 in Feb. Let’s see what this index brings next Tuesday ahead of Friday’s jobs numbers. Australia’s RBA is about 75% priced to hike 25 basis points, with forward guidance key there, and the Riksbank is expected to guide in line with the ECB – for a shallow hiking pace starting at the next meeting if energy prices continue to drive inflation.

FX Board of G10 and CNH trend evolution and strength.
Note: If unfamiliar with the FX board, please see a video tutorial for understanding and using the FX Board.

What a change in the board, as the violent JPY rally has driven an incredible 6-point shift in the direction and even taking JPY into positive territory, though it takes more than a day’s action to create a trend. Elsewhere, the concentration of the JPY move in USDJPY has weighed on the US dollar more broadly. AUD and NOK continue to enjoy the commodity strength focus of late.

01_05_2026_FXBoard_Main

Table: NEW FX Board Trend Scoreboard for individual pairs.

No surprise at all to see USDJPY readying for a flip to a negative trending reading tomorrow (indicated by the deep red shading), but traders will struggle to establish with the two-way volatility risks and establish trading levels. Elsewhere, will be interesting to see if the JPY move spreads to other JPY crosses, which have trended more aggressively higher before this intervention-driven JPY rally. Also note the EURCHF up-trend is under pressure. And I suspect the EURSEK rally will fade here unless we go into a risk off meltdown on new geopolitical headlines.

01_05_2026_FXBoard_Individuals
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