# Major indexes end weeks of gains as tensions between the U.S. and Iran cast doubt on a potential ceasefire.

*business · news · 2026-04-20 · Devdiscourse*

## Key points

- A senior Iranian official revealed potential peace talks are being considered in Pakistan.
- The reopening of the Strait of Hormuz was brief, causing market volatility.
- The S&P 500 energy index outperformed due to a sharp rise in U.S. crude prices.
- The CBOE Volatility Index climbed after prior declines, reflecting renewed market anxiety.

**Companies:** Tesla, Lockheed Martin
**Countries:** United States, Iran, Pakistan

[Read the full story on Devdiscourse](https://www.devdiscourse.com/article/business/3881141-market-reactions-amid-us-iran-tensions)

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