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Yen weakens after intervention-led surge ahead of BOJ policy decision

By Thomson Reuters Jul 30, 2026 | 7:29 PM

By Jiaxing Li

HONG KONG, July 31 (Reuters) – The Japanese yen came under renewed pressure on Friday after soaring in the previous session as Tokyo intervened in the currency markets before ​the Bank of Japan’s policy decision.

The dollar gained by as ‌much as 0.45% to 160.175 in early trades, after diving 2.4% in its biggest single-day drop since January 2023 in the previous session.

Japan conducted yen-buying, dollar-selling market intervention in New York session overnight, a market source told Reuters, pulling the sagging ‌currency ​from four-decade lows.

The BOJ is widely expected ⁠to keep short-term interest rates ⁠steady at 1%, having just hiked in June, while delivering a hawkish signal as price pressures mount.

That follows U.S. Federal Reserve’s decision to leave interest rates unchanged, which bruised the dollar as traders ​questioned whether the Fed’s new chief was serious about containing inflation.

The slow pace of rate hikes has been blamed for pushing the ⁠yen to a 40-year low, and ⁠most analysts polled by Reuters expect the BOJ to ​raise rates again to 1.25% by year-end.

“If you want to kind of ​intervene… it’s probably quite a good time,” Rodrigo Catril, senior ‌FX strategist at National Australia Bank, said, citing a weaker dollar amid pressure at the front end of the U.S. rates market and positive risk sentiment.

It also helps set the stage especially ahead of the ⁠BOJ where there is a risk that they may disappoint by not sounding hawkish enough, which could be a negative for the yen, he added.

The ⁠U.S. dollar index, which ‌tracks the currency against six major peers, was ⁠little changed at 100.6 after plunging 0.7% in the ​previous ‌session. It was heading for a 1.5% drop ​for the week ⁠and a 1.2% loss for the month.

The euro stood at $1.1523, down 0.04% so far in Asia, after climbing to a six-week high in previous session. Sterling traded flat at $1.34605.

The Aussie and Kiwi dollar were roughly down 0.1%, last at $0.70245 and $0.5875, respectively.

(Reporting by Jiaxing Li in Hong Kong; Editing ​by Lincoln Feast.)