S&P 500 Marks Longest Winning Streak Since 2023 Amid Tehran Tensions

S&P 500 Marks Longest Winning Streak Since 2023 Amid Tehran Tensions

US stocks defied the drumbeat from Tehran. The S&P 500 extended an eight-week advance—its longest since 2023—while the Dow closed at a record, signaling a market that continues to prize earnings visibility and liquidity over geopolitical tail risk. Leadership held across large-cap benchmarks into the close, buoying retirement accounts and reinforcing risk appetite even as oil and regional security proxies flickered on the headlines.

Beneath the surface, breadth remained steady and tech-adjacent megacaps anchored momentum. Traders leaned into constructive cash equity flows during the U.S. session, selectively fading the war-in-Iran chatter while respecting the sudden-swing risk embedded in that tape. The result: a market that climbs the wall of worry, but with fast-twitch reflexes trained on any Tehran shock. Expect the next catalyst to test whether disciplined guidance can keep volatility contained as the streak stretches—or snaps.