Yen sinks to four-decade low as dollar gets yields boost - Finance news and analysis from Global Banking & Finance Review
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Yen sinks to four-decade low as dollar gets yields boost

Published by Global Banking & Finance Review

Posted on July 1, 2026

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· Last updated: July 1, 2026

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Yen Falls to Lowest in 40 Years as Dollar Rises on Treasury Yields and Fed Bets

Dollar Strength and Yen Weakness Amid Treasury Yield Surge

By Rae Wee

Market Moves and Yen Intervention Concerns

SINGAPORE, July 1 (Reuters) - The dollar got a boost from a sharp rise in Treasury yields and pushed the yen to a 40-year trough on Wednesday, as traders braced for a crucial U.S. jobs report and ramped up bets on an imminent Federal Reserve rate hike.

The dollar rose to a fresh top of 162.77 yen in the early Asian session, well above levels that prompted Japanese authorities to intervene a few months ago to shore up the ailing currency.

Potential for Japanese Intervention

"We believe we are close to potential action," said Chidu Narayanan, head of macro strategy for APAC at Wells Fargo, referring to the likelihood of another intervention.

"We are at crucial levels, not necessarily in terms of a target spot level, but levels where the (Ministry of Finance) might need to intervene to retain its credibility."

Traders see the upcoming U.S. public holiday on Friday as a potential window for Tokyo to buy yen, as thinner liquidity conditions could magnify the impact of any intervention.

Broader Currency Market Developments

In the broader market, the dollar was on the front foot, as it rode an overnight jump in U.S. Treasury yields.

The euro fell 0.07% to $1.1413, while sterling eased 0.09% to $1.3252.

Against a basket of currencies, the dollar steadied at 101.24.

Impact of Treasury Yields

The rise in the greenback came on the heels of a 9-basis-point intraday rise in the 10-year U.S. Treasury yield on Tuesday, before it ended the session some 4.8 bps higher. [US/]

The 2-year yield was up 3 bps in the previous session and last stood at 4.1702%.

Analyst Perspectives on Market Drivers

Analysts said there was no clear catalyst behind the moves, though they could have partially been driven by some month-end positioning.

Upcoming U.S. Jobs Data and Fed Policy Outlook

Ahead of Thursday's U.S. nonfarm payrolls report, data overnight showed U.S. job openings edged up to a two-year high in May, but subdued hiring soured consumers' perceptions of the labour market.

Labour Market Resilience and Rate Hike Expectations

"All the evidence and the Fed's view itself is that the labour market is proving to be resilient, and therefore in terms of the Fed's dual mandate, the labour market is clearly not giving any signal that they should be thinking about cutting rates," said Ray Attrill, head of FX strategy at National Australia Bank (NAB).

Traders are now pricing in a 67% chance that the Fed could hike rates in September, up from a 20.5% probability a month ago, according to the CME FedWatch tool.

"The runway is certainly getting shorter for those advocating for no policy change when the Fed's stance is viewed to be hawkish, inflation is well above target and U.S. data is beating expectations," said Prashant Newnaha, senior rates strategist at TD Securities.

Focus on Fed Chair’s Comments and Other Currency Moves

Focus for the day ahead, meanwhile, falls on Fed Chair Kevin Warsh's appearance at the European Central Bank Forum on Central Banking in Portugal.

Expectations for Forward Guidance

"There's probably as much focus on whether he might say anything, but I think he probably won't, given his lack of interest in offering any forward guidance (in June)," said NAB's Attrill.

Other Major Currency Movements

Elsewhere, the Australian dollar fell 0.18% to $0.6907, while the New Zealand dollar was down 0.04% at $0.5674.

(Reporting by Rae Wee; Editing by Jamie Freed)

Key Takeaways

  • The yen has slumped to its weakest level since the mid‑1980s, with USD/JPY reaching approximately ¥162.77, echoing prior intervention triggers (reddit.com).
  • Rising U.S. Treasury yields are boosting the dollar: the 10‑year yield rose roughly 9 basis points intraday and ended around 4.8 bps higher, while the 2‑year yield sits at ~4.17% (kucoin.com).
  • CME FedWatch probabilities now show a strong market tilt toward no rate change in July (~70%‑63% chance of hold), but elevated odds (~48‑52%) of a 25‑bp hike by September (kucoin.com).

References

Frequently Asked Questions

Why did the yen fall to a four-decade low?
The yen dropped due to a sharp rise in U.S. Treasury yields and increased bets on a Federal Reserve rate hike, which strengthened the dollar.
Are Japanese authorities expected to intervene in the currency market?
Analysts believe Japanese authorities may intervene if the yen continues to weaken to retain credibility and stabilize the currency.
How did U.S. economic data influence forex markets?
Stronger U.S. job data and increased likelihood of a Fed rate hike boosted Treasury yields, causing the dollar to strengthen against other currencies.
What could trigger Japanese intervention in the forex market?
A potential intervention could occur during periods of low liquidity, such as the upcoming U.S. public holiday, to maximize the impact.
Which other currencies were affected by the dollar's rise?
The euro, sterling, Australian dollar, and New Zealand dollar all saw declines against the strengthening U.S. dollar.

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