Japan’s first-quarter gross domestic product (GDP) exceeded forecasts, driving long-term government bond yields to three-decade highs and increasing the likelihood of a Bank of Japan interest-rate rise in June.
Real GDP expanded at an annualized 2.1% in the first quarter of 2026, beating the consensus estimate of 1.7%. Solid private consumption and resilient exports drove the outperformance, according to preliminary estimates published by the Cabinet Office on 19 May. A revised second reading is due on 8 Jun.
At least one overseas economist, as reported by Japanese financial media, upgraded the fiscal 2026 GDP growth forecast to 0.9% from 0.7% and retained calls for rate hikes in June and October, plus a further increase in April 2027 that would take the terminal policy rate to 1.50%.
Ueda flags fast yield rise
Bank of Japan Governor Kazuo Ueda warned that long-term interest rates were rising "at a fast pace" during a press conference in Paris following the G7 finance ministers and central bank governors meeting. He cited Middle East-driven inflation concerns and evolving market views on Japan’s fiscal and monetary outlook.
The 10-year Japanese government bond yield briefly hit 2.8% on 18 May, the highest level in more than 29 years. Ueda highlighted accelerating price pass-through from upstream to midstream sectors, such as petrochemicals and plastics. The BOJ plans a mid-term review of its Japanese government bond purchase tapering programme at the June meeting.
US Treasury Secretary Scott Bessent described excessive exchange-rate volatility as undesirable, while Japan’s Finance Minister Satsuki Katayama said authorities stood ready to take "decisive action." The dollar-yen pair traded in the high 158 range on 20 May.
Carry trade implications for risk assets
A BOJ rate hike would reduce the attractiveness of yen-funded carry trades. These strategies borrow low-cost yen to invest in higher-yielding assets globally, including Bitcoin (BTC). The BOJ last raised rates in July 2024, triggering a sharp yen carry-trade unwind that may have contributed to Bitcoin falling from around $65,000 to below $50,000 within days.
Bitcoin traded near $77,200 on 20 May, showing a modest 0.08% gain on the day but remaining in a broader downtrend visible on the one-hour chart, with price action testing support levels near the $76,800 simple moving average. The Nikkei 225 index also weakened, closing the recent session lower amid the macro developments.
With US 30-year Treasury yields above 5.2%, another BOJ tightening step would add further macro pressure on risk assets. Markets have priced in sharply higher odds of a 25-basis-point hike at the BOJ’s 13-14 Jun meeting following the GDP release, with swap pricing and prediction markets now indicating a roughly 75-77% probability.
