Home Forex News Explainer-Japan hiked interest rates. Why is the yen falling?

Explainer-Japan hiked interest rates. Why is the yen falling?


Explainer-Japan hiked interest rates. Why is the yen falling? By Reuters

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Published Mar 25, 2024 03:31AM ET

© Reuters. Examples of Japanese yen banknotes are displayed at a factory of the National Printing Bureau producing Bank of Japan notes at a media event about a new series of banknotes scheduled to be introduced in 2024, in Tokyo, Japan, November 21, 2022. REUTERS/Ki

SINGAPORE (Reuters) – A week ago Japan raised interest rates for the first time since 2007 in a move that marked a historic shift in monetary policy.

Yet the currency fell. Now Japanese officials are talking of official intervention to prop it up. It traded at 151.86 per dollar on Friday, its weakest this year and within a whisker of levels that drew intervention in 2022. It also made long-term lows versus the euro and Aussie last week.

A weaker yen is a boon for Japanese exporters’ profits but can squeeze households by increasing import costs.

Here’s what’s behind the selling:


News reports, including from Reuters, foreshadowed the Bank of Japan’s landmark exit from negative interest rates in the lead-up to the decision. So did economic conditions, with sharply rising wages suggesting sustainable inflation and less need for subzero rates or policies to cap government bond yields.

“The event was too well anticipated, so the market was just too well priced going into the event,” said Patrick Hu, a G10 currency trader at Citi in Singapore who focuses on the yen.

The yen fell more than 1% the day of the announcement.


The yen is the lowest-yielding G10 currency, making it ideal for carry trades, in which an investor borrows in a currency with low interest rates and invests the proceeds in a higher-yielding currency.

With the BOJ decision and other central bank “event risks” out of the way last week, investors who had trimmed such trades have been rebuilding their positions. Investors are betting that Japanese rates are not going to be rising quickly from here, effectively extending the life of yen carry trades.

Short-term Japanese rates are held below 0.1% and only about 20 further basis points in hikes are priced this year.

The U.S. Fed funds rate is 5.25-5.5% and a 25 bp cut isn’t fully priced until July. The U.S.-Japan government bond yield gap at the 10-year tenor is almost 350 bps.


The rates picture is also keeping big Japanese investors’ cash abroad, where it can earn better returns, depriving the yen of support from repatriation flows. Japanese investors keep about $3 trillion in foreign bonds and yen trades.

Japan Post Bank and Japan Post Insurance, among the largest financial firms, told Reuters their portfolios won’t be radically changing in response to the BOJ’s policy shift.


At 151.27 per dollar the currency remains very close to the 151.94 mark that drew intervention in 2022. Markets seem leery of testing the 152 level, though authorities have stressed they aren’t targeting particular levels but rather speculative moves.

“Many seem to think a ‘line in the sand’ against further JPY weakness sits near the 152 area when intervention occurred in late 2022,” said HSBC analysts in a note to clients.

“The current situation is trickier, especially when the U.S. dollar is not in a bubble-like state as in the period of October/November 2022. So, the risk is that Japan’s (finance ministry) tries to intervene to support the yen but with very limited success. This could create heightened uncertainty for the yen and other currencies.”

Explainer-Japan hiked interest rates. Why is the yen falling?

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