- Japan’s 40-year bond yield rose to 3.774% on Thursday.
- The 5-year CDS spread reached 21.73 basis points on November 20.
- GDP contracted in Q3 2025, and inflation reached 3% in October.
Japan’s new economic stimulus package has triggered sharp reactions across global markets: the yen fell to its weakest level against the US dollar since January 2025, and long-term government bond yields climbed to multi-year highs.
The cabinet approved a roughly ¥21.3 trillion package on Friday — the largest since the COVID-19 era — and the announcement immediately shifted expectations across currency, bond, and crypto markets.
The scale of the support and the pressure it places on Japan’s public finances are prompting investors to reassess global risk exposure, especially as liquidity conditions change.
Economic reset
The package focuses on easing price pressures, supporting growth, and strengthening defense and diplomatic capabilities.
Grants to local governments and energy subsidies are a key part of the plan, and households are expected to receive roughly ¥7,000 over three months.
The government also aims to raise defense spending to 2% of GDP by 2027.
The supplementary budget is expected to be approved within the year, although the ruling coalition currently holds only 231 of the 465 seats in the lower house.
This support comes at a time of weakening growth. Japan’s GDP fell 0.4% in Q3 2025, equivalent to a 1.8% annualized contraction. Inflation has exceeded the Bank of Japan’s 2% target for 43 consecutive months, reaching 3% in October 2025.
Policymakers estimate the measures will raise real GDP by ¥24 trillion, with a total economic impact of about $265 billion.
Rising market pressures
The fiscal push has intensified concerns about long-term debt sustainability and market stress.
Japan’s 5-year credit default swap on government debt climbed to 21.73 basis points on November 20, its highest level in six months.
Immediately after the announcement, the 40-year bond yield rose to 3.697% and climbed further to 3.774% on Thursday.
Every 100 basis-point rise in yields would raise the government’s annual funding costs by roughly ¥2.8 trillion, underscoring the heavier long-term burden on public finances.
The Nikkei has urged caution about continued fiscal stimulus beyond emergency measures, adding another layer of investor concern. As the yield curve shifts and borrowing costs climb, the debate gains urgency.
These movements also matter for the roughly $20 trillion in yen carry trades. Investors commonly borrow yen at low rates to invest in higher-yielding overseas assets. A combination of rising yields and sharp currency swings can trigger asset withdrawals.
Historical data show a 0.55 correlation between reversals in yen carry trades and declines in the S&P 500, creating an additional channel for market volatility.
Yen reaction
After the stimulus announcement, the yen plunged, sparking speculation about future currency stability and potential intervention. Despite a 3.6% year-on-year rise in October exports, that gain was insufficient to allay broader economic concerns.
The size of the fiscal support and the persistence of inflation are central to how global markets interpret Japan’s next moves.
Crypto implications
These developments are already affecting the cryptocurrency market. A weaker yen tends to push Japanese investors toward alternative assets like bitcoin, especially when liquidity rises.
Analysts note Japan’s decision may amplify global conditions that include a potential easing by the U.S. Federal Reserve, Treasury cash movements, and continued liquidity support from China — factors that together could boost crypto demand into 2026.
At the same time, rising long-term yields carry risks. If yen carry trades unwind quickly, institutions could be forced to sell assets, including bitcoin, to meet liquidity needs, which would add downward pressure across markets.