Nikkei 225 Hits Multi-Week Low as Japan Bond Yields Surge and SoftBank Slumps

Key Facts

1The Nikkei 225 Index continued its downward spiral, reaching its lowest level since August 5 and falling 11.80% from its yearly high.

2The retreat in Japanese equities coincided with a bull run in domestic bond yields and escalating US-Iran geopolitical tensions.

Amid escalating concerns over tightening financial conditions, the Nikkei 225 Index continued its downward spiral to reach its lowest level since August 5. According to reports, the index has now retreated 11.80% from its yearly high, marking a significant technical breakdown. This sell-off is primarily attributed to a sustained surge in domestic bond yields and intensifying geopolitical tensions between the US and Iran, which have triggered a broad retreat from risk assets.

Large-cap and technology stocks bore the brunt of the pressure, with SoftBank Group Corp seeing a sharp decline as the Bank of Japan's policy environment pushed government bond yields higher. Per market data, SoftBank (9984.T) closed at 4925 JPY on September 2, 2026, hovering near its daily low of 4917 JPY, highlighting the strain that rising yields are placing on growth-oriented valuations.

Looking ahead, traders are monitoring key support levels following the index's recent slide, with SoftBank positioned at 4925 JPY (close September 2, 2026). With a light economic calendar for Japan in the coming days, market participants remain focused on domestic yield fluctuations and Middle East geopolitical developments as the primary catalysts for Tokyo equity markets.