USD/JPY: Dollar Pushes Yen into Deep End Near ¥164 as Japan Inflation Rises

Interventions can only do so much. Until Japan changes its policy stance, speculators will do what they do.

💴 Yen Can't Catch a Break

• The USD/JPY pushed to ¥163.90 early Friday, marking another 40-year high against the Japanese yen.
• Japan's latest inflation report gave traders one more reason to keep selling the currency, proving that when speculators smell momentum, they rarely ask for permission.
• Core inflation — which excludes fresh food prices — rose to 1.6% in June, matching forecasts and marking the first acceleration since March.
• Headline inflation climbed to 1.7%, while the closely watched "core-core" measure, excluding food and energy, eased to 1.7%.
• Rising inflation would normally support a currency. Not this time. Traders remain focused on Japan's ultra-low interest rates, which continue to make the yen one of the world's favorite funding currencies.

⛽ Oil Keeps Turning the Screw

• Higher oil prices are making life harder for Japan. Despite government subsidies softening the blow for households, businesses are absorbing much of the pain, with producer prices jumping 7.1% in June — the fastest pace since March 2023.
• Japan imports most of its energy, so a weaker yen makes every barrel of oil more expensive. That feeds imported inflation, squeezing corporate margins and adding another headache for policymakers already juggling sluggish growth.
• Intervention, where a central bank buys or sells their own currency to influence its value, can slow the fall, but it rarely changes the trend. Without a broader policy shift, markets often view those moves as temporary speed bumps.

🏦 BOJ Faces Tough Choices

• Reports this week suggested some Bank of Japan officials are becoming increasingly concerned that a weak yen and rising fuel costs could keep inflation hotter for longer, potentially opening the door to faster interest-rate hikes than markets currently expect.
• Higher interest rates generally strengthen a currency by making local assets more attractive. The problem? Japan has spent decades fighting weak inflation, so tightening policy too aggressively carries risks of its own.
• Until the Bank of Japan convinces markets it's ready to meaningfully narrow the interest-rate gap with the US, traders may keep treating every yen rally as an opportunity to hit the sell button one more time.