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

Reuters
2024.03.27 05:41
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Japan raised interest rates for the first time since 2007, causing the yen to fall. This is due to the fact that the decision was well anticipated and the yen is the lowest-yielding G10 currency. The rates picture is also keeping Japanese investors' cash abroad, depriving the yen of support from repatriation flows. There is also a risk of intervention by Japanese authorities to support the yen.

(Updates with dollar/yen milestone)

SINGAPORE, March 25 (Reuters) - Japan raised interest rates for the first time since 2007 this month in a move that marked a historic shift in monetary policy.

Yet the currency fell and now Japanese officials have issued their strongest warning in years of intervention to prop it up.

It traded at 151.97 per dollar on Wednesday, its weakest since 1990. 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:

SELL THE FACT

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.

CARRY ON

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, 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. (0#BOJWATCH)

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 (JP10US10=RR) .

FLOW

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.

INTERVENTION RISK

The yen’s dollar exchange rate has broken the level that drew intervention in 2022. Markets seem leery of testing 152 next, 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 yen 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.”

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