gh showed up in the UK after a softer consumer price index print sent government bond yields lower. Japan is the twist: even with “core-core” inflation (a stripped-down measure watched for underlying price pressure) slowing from 2.4% to 1.9% in April, MUFG said the odds of a Bank of Japan (BoJ) hike may not change much, partly because the Japanese government bond market has been jumpy.
Why should I care?
For markets: Currency winners and losers are tracking short-term yield gaps.
When short-term yields fall, a currency often loses some appeal because investors earn less interest for holding it. That’s the story MUFG is pointing to for the loonie: softer data narrows Canada’s yield advantage versus peers, which can weigh on CAD pairs – especially against higher-yielding currencies. Australia’s reset works the same way: when swap markets push expected hikes further out, the Australian dollar’s “paid to hold it” edge can fade, and foreign-exchange moves start to mirror two-year yield spreads.
Zooming out: The yen’s role in global trades depends on stability, not just inflation.
The yen is often used as a “funding” currency – traders borrow in it and invest elsewhere – because Japan has historically had low rates. But that only works smoothly when Japanese yields are stable and hedging costs are predictable. If the BoJ remains in play even as inflation cools, and the government bond market stays volatile, yen crosses can still jump on sudden rate moves.
