Yen and Yuan Watch: USD/JPY and USD/CNY Daily — 2026-10-05

Top developments

Ministry of Finance: Zero Intervention for September

On October 1, Japan's Ministry of Finance released monthly FX intervention data showing no coordinated or unilateral yen-buying operations between August 27 and September 28, 2026—the first full month without any action since July's historic coordinated US-Japan intervention. USD/JPY reversed intraday losses to close flat at 157.41, confirming that verbal guidance ("jawboning") from Finance Ministry officials has become the primary tool. The absence of actual intervention despite rhetoric from Deputy Finance Minister Shinpei Yamamoto signals a shift in tactical approach or market acceptance of higher yen levels.

PBOC Tightens Yuan Fix to 6.7399, Strengthening 90bp

On September 28, the People's Bank of China set the USD/CNY daily central parity rate at 6.7399, up 90 basis points from the prior session's 6.7489 fixing. This tightening contrasted sharply with a Reuters forecast of 6.7085, signaling PBOC intent to manage yuan strength without overshooting. The official midpoint continues to oscillate within the 6.71–6.75 band as onshore and offshore spreads remain compact—a hallmark of state-guided stability.

Chinese Yuan Hits 2022 High Amid Export Strength

The yuan climbed to its strongest level against the dollar in more than four years, extending gains underpinned by robust Chinese export performance and active PBOC support. On-shore (CNY) and off-shore (CNH) rates both broke through the 6.7 level on September 18 for the first time since January 2023, creating a key technical milestone. Market participants attribute sustained strength to seasonal Q3 export settlement flows overlaid with PBOC daily fixing discipline.

PBOC Moderates Fix Lower on September 30

Just two sessions later, on September 30, the PBOC lowered its daily yuan fixing to 6.7351—a 60 basis point decline from September 28. This pullback compared against a Reuters estimate of 6.7025, reinforcing a pattern of fine-tuned micro-adjustments rather than trend-following. The divergence between official forecasts and actual fixes underscores the central bank's countercyclical posture.

Carry Trade Rotation: Yuan Replaces Yen as Funding Currency

With USD/JPY stabilizing above 157 and the yen having appreciated ~6% since late July, international carry-trade investors are redirecting attention to the Chinese yuan and Canadian dollar as lower-cost funding vehicles. The yen's strength has made traditional yen-funded carry trades less profitable, shifting capital flows toward yuan-denominated borrowing—a structural shift that complicates PBOC's balance between economic support and currency management.

Local view

Japanese outlets (Nikkei, Gaitame, Nomura) note that Deputy Finance Minister Shinpei Yamamoto's comment "素直に受け止めてくれればいい" (I hope [the market] receives it honestly) on September 28 was interpreted as a frank acknowledgment that jawboning has replaced intervention. Gaitame's Senior FX Analyst Takuya Kanda flagged that "口先介入の効果は一時的" (the effect of verbal intervention is temporary), with USD/JPY rebounds driven by crude oil strength and persistent US-Japan yield spreads of 300+ basis points favoring dollar funding. Nomura Securities analyst Yujiro Goto warned that "円買い介入が10月利上げへのカタリスト" (yen-buying intervention could catalyze an October BoJ rate hike), linking FX pressure to monetary policy expectations.

Chinese outlets (Sina Finance, 21st Century Business Herald) reported that yuan strength above 6.7 sparked seasonal export settlement inflows and retail demand for CNH hedging ahead of Golden Week holidays. The PBOC's deliberate fixing adjustments were framed as "稳字当头"—stability-first—with reverse-cyclical factors deployed to prevent overshooting that might deter inbound FDI.

Context & numbers

Ministry of Finance monthly FX operations data (through September 30) confirms the absence of any coordinated or solo intervention activity. Bank of Japan daily forex fixing tables show USD/JPY oscillating in the 155–158 range since late August.

On the radar

• October BoJ Rate Decision & Guidance: With yen intervention off the table and yield spreads still wide, markets are pricing in a possible October hike. Jawboning intensity may escalate if USD/JPY approaches 159–160 resistance absent policy tightening signals.
• Q4 Seasonal Flows: Chinese exporters typically lock in year-end USD sales in October–November, supporting yuan strength. PBOC fixing discipline will likely continue weekly micro-adjustments in 6.70–6.75.
• Trump-Xi Summit Echo: Although the September 15 summit passed, trade-war rhetoric may resurface before year-end, affecting both carry unwinding (if risk sentiment falters) and yuan fixing decisions.
• Yuan Carry Trade Expansion Risk: If yen remains elevated and yuan carry becomes mainstream, sudden unwinding could hit emerging-market assets linked to CNH borrowing—watch offshore lending spreads and cross-border swap flows.