Why Nikkei 225 (JP225) rose 2.10%
Nikkei 225 (JP225) rose 2.10% on October 1, 2026 — Yen weakness boosts Japanese exporters.
What happened
The Japanese yen weakened, boosting the Nikkei 225 as exporters' yen-translated earnings improved and foreign investors' purchasing power for Japanese equities increased.
Why it moved
Yen weakness directly lifts export-heavy large-cap earnings and reduces the real cost of Japanese assets to foreign buyers, driving the index higher on valuation and earnings tailwinds simultaneously.
Why it matters
The yen-driven Nikkei rally is the core Japan (Yen & Equities) theme—where FX movements and BOJ tightening are the primary price drivers for the index, with weaker yen functioning as a secular support for Japanese…
What would break the thesis
A sharp yen rebound—driven by safe-haven flows or BOJ hawkish surprise—would reverse the tailwind and pressure the Nikkei without improvement in fundamentals.