US Markets React to Iran Tensions: S&P 500 Ends Seven-Day Rally, Semiconductors Prop Up Nasdaq

Wall Street Pulls Back as Iran Tensions Shake Markets

US stock markets experienced a significant divergence on April 10 as geopolitical tensions between the US and Iran weighed on broader sentiment, while semiconductor stocks provided a counterweight.

Market Moves

• S&P 500: Ended its seven consecutive days of gains
• Nasdaq Composite: Bucked the trend and closed higher, supported by semiconductor strength
• Oil Prices: Edged lower despite escalating Iran tensions
• European Stocks: Jumped higher on Ukraine ceasefire signals

Dual Geopolitical Drivers

Markets are grappling with two major geopolitical storylines simultaneously:

1. US-Iran Negotiations: With negotiations scheduled for April 11 in Islamabad, both sides have taken hardline positions. Trump threatened military escalation while Iran's armed forces declared readiness to fire. The uncertainty contributed to the S&P 500's retreat.

1. Ukraine Ceasefire: Ukraine's chief negotiator reportedly signaled progress toward a ceasefire, triggering oil price drops and European stock rallies. However, the Kremlin clarified that a special envoy's visit to the US does not necessarily mean peace talks have resumed.

Semiconductor Resilience

The semiconductor sector's outperformance — despite broader market weakness — reflects continued investor confidence in AI infrastructure spending. Major chip stocks gained, with optical communication companies like Zhongji Innolight hitting new highs.