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Japan finance minister warns of high FX volatility, signals readiness to act

By Thomson Reuters Apr 2, 2026 | 9:21 PM

TOKYO, April 3 (Reuters) – Japanese Finance Minister Satsuki Katayama on Friday put currency traders on notice, ​saying the government stands ready ‌to act against speculative moves in foreign exchange markets as volatility has risen “significantly.”

The yen, trading near the psychologically key ‌160-per-dollar ​mark, lingered at levels ⁠that have repeatedly ⁠stoked concerns of market intervention, underscoring growing unease in Tokyo over the speed and scale of its ​decline.

“We are seeing a rise in speculative activity in both ⁠crude oil futures and ⁠foreign exchange markets, and ​volatility has increased significantly,” Katayama said at ​a regular press conference.

Katayama has previously ‌flagged speculative activity, but her latest comments highlight growing government unease as currency markets turn increasingly ⁠volatile.

“As exchange-rate volatility driven by these developments is affecting the livelihoods and economy of ⁠the ‌public, we are prepared to ⁠respond fully on all ​fronts,” ‌she said.

Asked about the Bank ​of Japan’s ⁠monetary policy, she said it’s up to the BOJ to decide on specific monetary tools.

(Reporting by Makiko Yamazaki; Editing by Christopher Cushing and ​Shri Navaratnam)