- U.S. rate check signals Tokyo, Washington action possible but not imminent
- Threshold high for direct solo, joint intervention, analysts say
- U.S. has own reasons to avoid joint action
- Japan would need to sell US Treasuries to intervene
TOKYO, Jan 26 (Reuters) - The unusual rate check by the New York Federal Reserve that triggered a spike in the stubbornly weak yen has lowered the threshold for intervention, but coordinated Japan-U.S. selling of dollars still looks highly unlikely at this stage.
The Fed's action late on Friday was the strongest signal to date that Japanese and U.S. authorities were working closely together to stem the currency's decline, keeping markets on high alert for intervention.
Yet, direct coordinated intervention may not happen as quickly as markets may be expecting, analysts say, partly due to domestic considerations in the U.S. - suggesting Washington's support for Japan's concerns over an excessively weak yen is likely to extend only to rate checks for now.
"Past coordinated intervention came in very rare circumstances such as during a financial crisis or a big natural disaster," said Junya Tanase, chief Japan currency strategist at JP Morgan. "We think the distance between joint rate checks to coordinated intervention is quite big."
For now, fears of intervention alone have pushed the yen off 18-month lows, offering some relief to Japanese policymakers fretting about the inflationary impact of the currency's declines.
To be sure, the Fed's rate check didn't happen in isolation.
It was a culmination of a five-year effort by Japan to persuade the U.S. into signing last year a bilateral statement authorising use of currency intervention to combat excessive volatility, say officials involved in the negotiations.
Japanese Finance Minister Satsuki Katayama has repeatedly stressed that she was aligned with U.S. Treasury Secretary Scott Bessent on currency issues.
Her warning against yen bears reached a peak on January 16, when she said Japan will take decisive action against speculative yen moves. When asked about the chance of joint Japan-U.S. action, she said "no options are excluded."
Washington also had reason to join Japan's efforts to combat the market rout that pushed down not just the yen but Japanese government bonds with spillover into the U.S. Treasury market.
Bessent signalled Washington's displeasure over the repercussions from the rising Japanese yields, saying in Davos on January 20 that it was "very hard to disaggregate the market reaction from what's going on endogenously in Japan."
Days later, BOJ Governor Kazuo Ueda underscored the bank's readiness to work closely with the government to contain sharp rises in yields, including via emergency bond-buying operations.
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The tough talk seems to be working for now. The yen rose to a two-month high of 153.89 per dollar on Monday, well off the 160 level seen as authorities' line-in-the-sand for intervention. The yield on the 10-year bond fell 1 basis point to 2.225%.
But the big question for markets is whether joint U.S.-Japan intervention is imminent, and whether the U.S. sees a compelling reason to engage in coordinated action.
"In reality, the U.S. probably doesn't want to buy a currency like the yen that has seen its value depreciate for five straight years," said Shota Ryu, FX strategist at Mitsubishi UFJ Morgan Stanley Securities.
"Washington could possibly cooperate with one small intervention. But it won't help in a way that could have a lasting effect in turning around the yen's downtrend."
Actual intervention is not without cost.
Japan would need to sell a portion of its U.S. Treasury holdings if it were to conduct yen-buying intervention continuously, a move that may push up U.S. yields - something Washington may not like happening with markets already volatile.
The threshold for joint intervention is even higher. While President Donald Trump may favour a weak dollar that gives U.S. exports a boost, further dollar falls could add fuel to the "Sell America" trade that regained momentum last week.
"It's unlikely the U.S., worried about global de-dollarization, will conduct direct dollar-selling intervention," said Takuya Kanda, an analyst at Gaitame.com Research Institute.
BOJ IN A BIND
Even if the U.S. is on board, Japan by protocol would need to get consent from other G7 nations to step into the market.
The last time G7 nations, which include Japan, took coordinated action on the yen was in 2011, when Japan's huge earthquake and tsunami triggered a spike in the currency.
"The situation is very different now" with the yen falling on market concern over Japan's handling of fiscal policy, said Yoshihiko Noda, who was Japan's finance minister when the coordinated action took place.
The BOJ is also in a tricky position, sandwiched between the need to keep sharp yen falls in check and making sure to avoid sparking a jump in bond yields with overly hawkish comments.
Governor Ueda said on Friday that long-term rates were rising at "quite a fast pace," but he was mum on whether the BOJ could carry out emergency bond-buying operations or tweak its scheduled taper plan to weather extreme market stress.
He had good reason to keep markets guessing.
"By signalling readiness to ramp up bond buying in times of emergency, the BOJ would push down long-term rates which then weakens the yen," said Hiroyuki Machida, director of Japan FX and commodities sales at ANZ.
"On top of that, you have almost all ruling and opposition parties calling for tax cuts. This all keeps the yen weak."
Reporting by Makiko Yamazaki and Leika Kihara Editing by Shri Navaratnam
Source: Reuters