# S&P 500 Ends Flat Amid US-Iran Talks and Market Volatility Geopolitical tensions and oil price surges influence market movements. - **Source:** [Economic Times](https://brifing.si/source/37791137-c35a-4ffe-b6a9-fe103afc9e48) - **Published:** 2026-09-24 - **Topic:** [Finance](https://brifing.si/c/finance) - **Original article:** - **On Brifing:** https://brifing.si/s/afb8ead0-8e32-4b69-a3a6-5436656498b6 ## Market volatility persists The S&P 500 ended nearly flat as Microsoft shares declined, while Meta Platforms recorded gains. This reflects ongoing market fluctuations driven by mixed corporate performance and external economic factors. Traders remain cautious amid uncertain market conditions. ## Geopolitical tensions rise Oil prices surged following a missile attack on Saudi Arabia, raising concerns about global supply disruptions. The attack heightened geopolitical tensions, particularly between the US and Iran, influencing market sentiment and commodity prices. ## Treasury yields climb The 30-year Treasury bond yield reached its highest level since 2004, reflecting investor concerns about inflation and future interest rate hikes. Rising yields indicate a shift in market expectations regarding monetary policy. ## Federal Reserve expectations Traders anticipate a significant chance of another Federal Reserve interest rate hike, based on recent business activity data. This expectation is shaping market behavior, with investors adjusting portfolios to mitigate potential risks. ## Mixed corporate performance Microsoft's decline contrasted with Meta Platforms' gains, highlighting divergent corporate performance within the tech sector. Such mixed results underscore the sector's sensitivity to broader economic and market conditions. ## Oil price impact The surge in oil prices following geopolitical tensions has broader implications for inflation and consumer spending. Higher energy costs could pressure corporate margins and influence Federal Reserve policy decisions. ## Investor caution prevails Amid rising Treasury yields and geopolitical risks, investors are adopting a cautious approach. This sentiment is reflected in the flat performance of the S&P 500, as market participants weigh potential risks and opportunities. ## Market outlook uncertain The combination of geopolitical tensions, rising yields, and mixed corporate performance creates an uncertain market outlook. Traders will closely monitor Federal Reserve actions and global developments for future market direction. ## Sources covering this story - https://economictimes.indiatimes.com/markets/us-stocks/wall-street-guide/us-stocks-sp-500-ends-nearly-flat-as-us-iran-talks-help-stocks-pare-losses/articleshow/134469382.cms — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._