Dow Jones flat as Iran tensions rise; S&P 500, Nasdaq slip

• Oil prices jumped sharply with WTI crude climbing above $88 per barrel and Brent exceeding $95, lifting energy stocks like Exxon Mobil, Chevron, and Occidental Petroleum.
• The pullback follows a strong rally that saw the S&P 500 gain 4.5% last week and the Nasdaq surge 7% over 13 consecutive sessions, its longest winning streak since 1992.
• First-quarter S&P 500 earnings are projected to grow 14.4% year-over-year, with major companies including Tesla and defense contractors set to report this week amid heightened geopolitical uncertainty.

Market Summary: Dow Jones Flat as Iran Tensions Rise; S&P 500, Nasdaq Slip

Key Market Movements

Wall Street opened lower on Monday, April 20, 2026, as US-Iran tensions dampened investor sentiment. The Dow Jones Industrial Average gained 28 points, while the S&P 500 declined 0.17% and the Nasdaq-100 fell 0.13%. This followed a strong rally last week, with the S&P 500 up 4.5% and the Nasdaq surging approximately 7% over 13 consecutive sessions—its longest winning streak since 1992.

Geopolitical Catalyst

Tensions escalated after Iran moved to close the Strait of Hormuz again following a vessel seizure. Iran indicated it would not participate in further negotiations with the US, raising concerns about regional stability and oil supply disruptions.

Oil and Energy Sector Impact

Crude oil prices surged approximately 5-6%, with West Texas Intermediate climbing above $88 per barrel and Brent crude exceeding $95. Energy stocks benefited significantly: Exxon Mobil and Chevron opened higher, while Occidental Petroleum rose roughly 0.73%.

Market Volatility

The CBOE Volatility Index (VIX) reached a one-week high after eight consecutive sessions of declines, signaling increased market uncertainty. Analysts noted that markets have become highly sensitive to geopolitical developments.

Earnings Season Outlook

Investors are focusing on upcoming quarterly results, with defense contractors (Lockheed Martin, RTX), technology firms (IBM, ServiceNow), and Tesla scheduled to report this week. First-quarter earnings for S&P 500 companies are projected to grow 14.4%, up from 13.7% year-over-year, according to LSEG I/B/E/S data.

Market Implications

The pullback remains contained despite geopolitical concerns, though analysts warn the extent depends on further developments. The energy sector appears positioned to benefit from sustained oil price increases driven by Middle East instability.