Japanese Stimulus Shakes Global Markets as Yen Falls and Crypto Demand Surges

  • Japan’s 40-year government bond yield rose to 3.774% on Thursday.
  • Five-year CDS spreads reached 21.73 basis points on November 20.
  • GDP contracted in Q3 2025, while inflation hit 3% in October.

Japan’s new stimulus package has triggered sharp reactions across global markets: the yen fell to its weakest level versus the US dollar since January 2025, and long-term bond yields climbed to multi-year highs.

The Cabinet on Friday approved a 21.3 trillion yen package—the largest since the COVID-19 era—and the announcement immediately shifted expectations in currency, bond and crypto markets.

The scale of support and pressure on Japan’s public finances is forcing investors to rethink how they assess global risk, particularly as liquidity conditions evolve.

Economic reset

The package aims to ease price pressures, support growth and strengthen defense and diplomatic capabilities.

Local government grants and energy subsidies form a core part of the plan, and households are expected to receive about 7,000 yen in support over three months.

The government also plans to raise defense spending to 2% of GDP by 2027.

The supplementary budget is expected to be approved before year-end, although the ruling coalition currently holds only 231 of the 465 seats in the Lower House.

Support arrives amid weakening growth.

Japan’s GDP fell 0.4% in the third quarter of 2025, equivalent to an annualized contraction of 1.8%.

Inflation has remained above the Bank of Japan’s 2% target for 43 consecutive months and reached 3% in October 2025.

Policymakers expect the new measures to boost real GDP by 24 trillion yen and generate a total economic impact approaching $265 billion.

Rising market pressure

The fiscal expansion has intensified concerns about long-term debt sustainability and market stress.

Five-year credit default swaps on Japanese government bonds climbed to 21.73 basis points on November 20, their highest level in six months.

The country’s 40-year bond yield jumped to 3.697% immediately after the announcement and rose further to 3.774% on Thursday.

Each 100 basis point rise in yields raises annual government financing costs by roughly 2.8 trillion yen, drawing attention to mounting pressure on public finances over time.

Nikkei reports a persistent caution about continued use of fiscal stimulus beyond emergency needs, adding another layer of investor concern.

This debate has become more acute as the yield curve shifts and Japan’s borrowing costs increase.

These moves also matter for the roughly $20 trillion yen-carry trade. Investors typically borrow yen at low rates and invest in higher-yielding assets abroad.

A combination of higher yields and sharp currency moves can force unwindings.

Historical data show a 0.55 correlation between yen-carry trade reversals and declines in the S&P 500, adding another potential source of volatility.

Yen reaction

The yen plunged after the stimulus announcement, sparking speculation over the currency’s future stability and the prospect of intervention.

October exports rose 3.6% year-on-year, but that gain has not been enough to ease concerns about broader economic strain.

The size of fiscal support and persistent inflation have become central to how global markets interpret Japan’s next steps.

Crypto implications

These conditions feed directly into cryptocurrency markets.

A weaker yen tends to push Japanese investors toward alternative assets, including Bitcoin, particularly when liquidity is abundant.

Observers note that Japan’s decision arrives amid a global backdrop that may include possible US Fed easing, Treasury cash flows and continued liquidity support from China.

Together, these factors could boost crypto demand in 2026.

At the same time, higher long-term yields pose risks.

If yen-carry trades unwind rapidly, institutions may be forced to sell assets—including Bitcoin—to meet liquidity needs.