Executive Summary
The Nikkei 225 fell 568 points or 0.85% for the full trading week to close at 66,020.04 on June 12. The index opened the week near 64,025 on June 8 before climbing to 65,417 on June 9, then retreating to 64,179 on June 10 and stabilizing around 64,217 on June 11. A strong 2.81% gain on June 12, fueled by optimism over potential Middle East de-escalation, limited the weekly loss.
Weekly Drivers
- Renewed US-Iran tensions early in the week prompted rotation out of energy-sensitive tech stocks and lifted bond yields via faster wholesale inflation.
- Friday's surge followed comments from US President Trump on prospects for a peace deal that could reopen the Strait of Hormuz.
- The pullback from June highs near 68,000 reflected profit-taking after the AI-driven rally that lifted the index more than 30% year-to-date through early June.
- Broader market data and sector rotation influenced daily moves alongside global equity cues.
Sectors & Breadth
Technology and AI-related names led early-week declines as investors rotated toward defensives amid energy price concerns, while financials and exporters showed relative resilience on the Friday rebound. The broader Topix index gained 1.35% for the week, outperforming the Nikkei and suggesting somewhat broader participation in the late recovery. Daily swings were pronounced, with the index moving more than 4% intraday on June 12, though specific breadth metrics such as advancing versus declining issues were not uniformly reported across sessions.
What to Watch
- Developments in US-Iran negotiations and any impact on global energy prices or shipping routes.
- Upcoming Japanese economic data releases, including inflation and trade figures, and potential Bank of Japan policy signals.
- Earnings updates from major exporters and technology firms that could influence sector rotation.
- Global equity and currency movements, particularly yen fluctuations affecting foreign investor flows.
Capital-Flow Context
Foreign investor positioning remained a key driver, with the week's volatility highlighting sensitivity to geopolitical headlines that can prompt quick shifts in cross-border allocations. The yen's movements continued to influence exporter competitiveness and the attractiveness of Japanese equities to overseas funds. Passive inflows tied to index rebalancing and dividend-focused adjustments scheduled for late June may provide additional support, though sustained foreign buying will depend on resolution of Middle East uncertainties and domestic growth signals.