---
symbol: "JP225"
name: "Nikkei 225"
date: 2026-10-01
change_pct: 2.099850968703428
direction: "up"
event_type: "price_move_recap"
url: "https://perplo.app/why/JP225/2026-10-01"
updated_at: 2026-10-01T11:06:42.447Z
---

# Why Nikkei 225 (JP225) rose 2.10% on October 1, 2026

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.

## Sources

- [investingLive Asia-Pacific market news:  Yen weakens,Nikkei jumps](https://investinglive.com/news/investinglive-asia-pacific-market-news-yen-weakens-nikkei-jumps/) — ForexLive

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