---
title: "How major US stock indexes fared Tuesday 8/18/2026"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296268562.md"
description: "US stock indexes declined on Tuesday, August 18, 2026, as AI stocks continued to drop. The S&P 500 fell 0.7%, marking its third consecutive modest loss after hitting an all-time high on Thursday. The Dow Jones Industrial Average dipped 0.2%, while the Nasdaq Composite sank 1.3%. Major tech firms like Nvidia, Micron Technology, and Broadcom were among the significant contributors to the decline."
datetime: "2026-08-18T20:44:41.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296268562.md)
  - [en](https://longbridge.com/en/news/296268562.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296268562.md)
generator: "portal-rs"
---

# How major US stock indexes fared Tuesday 8/18/2026

Wall Street pulled further from its all-time high Tuesday as AI stocks got back to sinking. The S&P 500 fell 0.7% for a third straight modest loss since setting its all-time high on Thursday. The Dow Jones Industrial Average dipped 0.2%, and the Nasdaq composite sank 1.3%. Nvidia, Micron Technology and Broadcom were some of the heaviest weights on ...

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**