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Dollar edges lower after four-day run of gains, yen stalled near 40-year low - Finance news and analysis from Global Banking & Finance Review
Finance

Dollar edges lower after four-day run of gains, yen stalled near 40-year low

Published by Global Banking & Finance Review

Posted on July 22, 2026

5 min read

· Last updated: July 22, 2026

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Dollar edges lower after four-day run of gains, yen stalled near 40-year low

Market Movements and Currency Analysis

By Chuck Mikolajczak

Dollar Performance and Oil Price Impact

NEW YORK, July 22 (Reuters) - The dollar eased slightly from a one-week high on Wednesday after four straight daily advances, while the yen saw a modest recovery from its weakest level in nearly four decades as traders weighed the likelihood of intervention from Tokyo and the odds of faster rate hikes by the Bank of Japan.

The dollar has been rising in recent days as increased tensions in the U.S.-Iran war have caused a reversal in oil prices and again fanned inflation fears.

Oil Prices and Geopolitical Tensions

Oil prices touched their highest in about six weeks, and U.S. crude was last up 2.93% to $86.81 a barrel and Brent at $94.05 per barrel, up 3.34%, as concerns about supply disruptions increased.

U.S. President Donald Trump promised to destroy an Iranian bridge or power plant every time Iran shoots at a ship in the Strait of Hormuz, the latest escalation after Iran-allied Houthis in Yemen threatened a second vital energy route.

Mediators have presented Iran with a proposal for a 10-day ceasefire, a senior Iranian official told Reuters on Monday.

Market Sentiment and Dollar Outlook

"There are negotiations going on in the background, so ultimately, markets are trying to look at it from a different, not necessarily more positive perspective," said Juan Perez, director of trading at Monex USA in Washington.

"Because of the general idea that the scope is so large and this has escalated too much, that there's going to be an immediate attempt to try to urgently end this. So that's kind of the narrative and that's helping markets, that's not a very dollar positive thing."

The dollar index, which measures the greenback against a basket of currencies, shed 0.03% to 101.14, with the euro edging up 0.01% at $1.1408.

Crude prices had been coming down since May on optimism a durable peace deal could be reached and, along with cool U.S. inflation readings, dented market expectations for rate hikes from the Federal Reserve.

Expectations for a hike from the Fed at its July meeting have been rising along with oil prices, with markets now pricing in a 31.5% chance for an increase, according to CME FedWatch, up from 10.7% a week ago.

Yen Hovers Near Four-Decade Low

The Japanese yen strengthened 0.01% against the greenback to 163.14 per dollar as an earlier move to 162.77 faded.

Bank of Japan Policy and Market Reactions

The currency weakened to 163.23 on Tuesday, its lowest since December 1986 as investors adjust to a changing policy backdrop under Japanese Prime Minister Sanae Takaichi, whose administration has struggled to shake off views that it may pressure the Bank of Japan (BOJ) to delay further rate hikes. Markets are currently pricing in about 25 basis points of hikes from the central bank this year, according to LSEG data.

Reuters reported that the BOJ remains on alert to upside inflation risks that could lead to faster interest rate hikes than markets project, according to three sources familiar with its thinking.

Japan's Finance Minister Satsuki Katayama has said authorities would take decisive action if needed to curb excessive currency weakness. Tokyo had intervened in April and May, when the yen weakened beyond the 160-per-dollar level.

Analyst Perspectives on Yen Trajectory

Those efforts, however, have done little to stem the tide of the yen's broader trajectory, which analysts say is being driven in part by broad-based dollar strength and the BOJ's still-low interest rates.

Mallika Sachdeva, head of FX thematics at Deutsche Bank Research, said in a note that Japan's policy makers have focused on stabilizing the currency over the past few months, but "if fiscal capacity is becoming the most important policy criteria, incentives could shift from FX to yield management," and the ultimate impact on the dollar/yen "will depend on the levers the government chooses to pull to manage yields."

Sachdeva said that if the Government Pension Investment Fund (GPIF) is mandated to bring money back into domestic assets that could be very bullish for the yen, but if the BOJ "is coopted to support bonds through renewed JGB purchases, this could be very negative."

Sterling and Other Currency Movements

Sterling weakened 0.04% to $1.3366, putting it on track for a fifth straight decline, its longest streak since mid-May. British inflation cooled by more than expected last month as a brief de-escalation in the Iran war lowered fuel prices, but the slowdown is likely to offer only temporary relief to new Prime Minister Andy Burnham as he seeks to ease living costs.

UK Economic Policy Outlook

Burnham said he was making no unfunded promise to change the tax-free personal allowance and that decisions on taxation would be taken at the next fiscal update expected in several months.

(Reporting by Chuck Mikolajczak; additional reporting by Niket Nishant in Bengaluru and Tom Westbrook in Singapore; Editing by Sriraj Kalluvila, Kirsten Donovan and Deepa Babington)

Key Takeaways

  • USD/JPY breached the ¥163 level, a four‑decade low, stoking intervention concerns.
  • HSBC and ING see ¥162–163 as a potential new intervention zone, expecting selective, surprise actions rather than sustained suppression of dollar strength.
  • Weak yen reflects wide US–Japan rate differentials, geopolitical risks, and persistent negative real rates in Japan—interventions may cap extremes but not reverse the trend.

Frequently Asked Questions

Why has the yen fallen to its lowest level since 1986?
The yen has weakened due to rising US Treasury yields, higher oil prices, and concerns about Japan's finances, pushing the currency to levels not seen since 1986.
Is the Japanese government likely to intervene in currency markets?
Japan may soon intervene again to support the yen if it continues to weaken, though past interventions have had only short-term effects.
What impact do rising US yields have on the yen?
Rising US Treasury yields make the dollar more attractive to investors, putting further downward pressure on the yen.
How does the Middle East conflict affect currency markets?
Continued Middle East conflict supports the dollar due to its safe-haven status and correlation with rising oil prices.
What is the expected range for the dollar/yen exchange rate?
Analysts expect the dollar/yen to be trapped in a new, higher range of 160-165, with periodic interventions possibly capping further increases.

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