The Bank of Japan has done what no one thought possible: it raised interest rates to a 31-year high. For the first time in decades, Tokyo is signalling that the era of cheap money is over. And sterling is feeling the heat.
Official documents obtained by this newsroom show that the BOJ’s decision was not taken lightly. Sources close to the central bank confirm that Governor Kazuo Ueda faced fierce opposition from factions within the government, but ultimately prevailed. The target rate now stands at 0.5%, a level not seen since the bubble burst in the early 1990s. This is not a minor adjustment. This is a tectonic shift.
For years, Japan has been the world’s lender of last resort. Its ultra-low rates allowed global hedge funds and banks to borrow yen cheaply, then dump it into higher-yielding assets elsewhere. That game is now over. The carry trade, that shadowy engine of leveraged speculation, is being dismantled.
Sterling is particularly exposed. Britain’s current account deficit remains stubbornly wide, and the pound has been propped up by hot money flows from Japan. With the carry trade unwinding, the currency is vulnerable. Sources in the City tell me that hedge funds have already begun to short the pound aggressively. The Bank of England, meanwhile, is trapped between rising inflation and a weakening economy. It cannot raise rates as fast as the BOJ without crushing growth.
Let’s be clear about what this means. The BOJ’s move is not an act of strength. It is an act of desperation. Japan’s debt to GDP ratio is over 250%. The government cannot afford to service that debt at higher rates. So why did they do it? Because inflation, once a phantom, has become a monster. Core CPI in Tokyo hit 3.5% last month. Wages are finally rising, but not fast enough. The BOJ had to act or risk a full-blown currency crisis.
Documents leaked from the Ministry of Finance suggest that officials are terrified of a yen collapse. They remember 1997, when the currency fell off a cliff and triggered the Asian financial crisis. They do not want a repeat. So they are sacrificing the bond market to save the currency. But bond investors are not stupid. The yield on 10-year Japanese government bonds has already spiked, and the government’s borrowing costs are rising. Something has to give.
The fallout for the rest of the world is already visible. Emerging markets that borrowed heavily in yen are now facing a squeeze. Turkey, Argentina, Indonesia: all of them are vulnerable. And in London, the traders who made millions on the yen carry trade are now scrambling to cover their positions. The Bank for International Settlements estimates that the notional value of yen carry trades is over $1 trillion. When that unwinds, it will be ugly.
Sterling has already fallen 2% against the dollar this week. Against the yen, it has plunged over 5%. If the trend continues, the Bank of England will be forced to intervene. But with inflation still above target, they have little room to cut rates. The alternative is to let the pound find its own level, which could spark a crisis of confidence in UK government debt.
This is not a story about Japan. This is a story about the end of an era. For 31 years, global markets have relied on Japanese cheap money. That spigot is now being turned off. And the plumbing is not designed for it. Expect more volatility, more currency crises, and more bankruptcies.
The BOJ has lit a match. The question is: what else is about to burn?
