Yen slides to 160 as Gulf hostilities fuel intervention risk

The yen slid back to 160 per dollar on Wednesday, erasing all gains from Japan's record 11.7 trillion yen intervention, as fresh Gulf hostilities boosted safe-haven demand for the dollar.

"Everybody knows the risks of BOJ intervention have increased, but it hasn't really deterred them," said Marc Chandler, chief market strategist at Bannockburn Global Forex. "The intervention, which was a record amount, in late April and May, pushed us down, and we're back up there."

The dollar was last at 159.975 yen, a touch stronger on the day, after breaching the 160 threshold earlier in the session. The euro eased 0.24% to $1.16, while sterling fell 0.26% to $1.3429. The dollar index rose 0.161% to 99.455. Two-week dollar-yen butterfly spreads climbed to their highest since October 2022, when Japan conducted its first yen-buying intervention in more than two decades, signaling growing demand for hedges against sharp swings.

The 160 level is widely seen as an unofficial threshold that would trigger yen-buying intervention by the Ministry of Finance. Japan has spent a cumulative $215 billion on intervention attempts since 2022, including the record 11.7 trillion yen ($73.5 billion) deployed in late April and early May. With Japan importing 90% of its energy and the Iran conflict driving one of the biggest global energy shocks in history, the inflationary pressure from a weak yen creates a politically toxic mix for the government.

BOJ Faces Dual Pressure as Ueda Flags Rate Debate

Bank of Japan Governor Kazuo Ueda said the central bank must discuss the pros and cons of raising interest rates if inflationary risks outweigh downside risks to the economy, a hawkish signal that highlights the policy dilemma facing the BOJ. "Comments from BOJ Gov. Ueda have been hawkish, suggesting the policy rate was not in the neutral range," said Shaun Osborne, chief FX strategist at Scotiabank. Prime Minister Sanae Takaichi earlier said authorities stood ready to respond to exchange-rate moves as needed.

The last time the yen traded at 160, in late April, the BOJ intervened on behalf of the Ministry of Finance within hours. Options pricing suggests traders expect a repeat: two-week risk reversals show elevated demand for yen calls, a bet that authorities will step in again. Japan's $1.38 trillion in foreign exchange reserves, the second-largest in the world, and its $1.19 trillion holdings of U.S. Treasuries give it ample firepower for further intervention.

Dollar Strength Broadens as Fed Tightening Bets Return

The dollar's rally extended beyond the yen. The U.S. dollar index rose to 99.455 as markets repriced Federal Reserve policy expectations after data showed U.S. job openings increased by the most in five years in April. Markets now price roughly 19 basis points of Fed rate hikes by December, with a quarter-point increase fully priced by March 2027.

"The nonfarm payrolls figure could be pretty important from a dollar perspective," said Gustav Helgesson, macro strategist at SEB. "It could tilt the Fed away from this easing bias and start eyeing rate hikes. I think it could be the start of a sentiment shift for the dollar." The U.S. is set to release nonfarm payrolls data on Friday, which could further shape the rate outlook.

The Iran conflict has upended the global rate landscape. The U.S. said Iran launched ballistic missiles toward regional neighbors, all of which failed to hit targets, while U.S. forces conducted strikes on Qeshm Island. Diplomatic talks remain at a stalemate, keeping energy prices elevated and the dollar underpinned by safe-haven flows. The yen, by contrast, weakens as oil rises given Japan's reliance on imported energy, making the currency pair a direct transmission mechanism for geopolitical risk.

This article is for informational purposes only and does not constitute investment advice.