---
title: "Illumina Inc. Stock Underperforms Tuesday When Compared To Competitors"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296271966.md"
description: "Illumina Inc. (ILMN) shares fell 2.51% to $188.29 on Tuesday, underperforming the broader market and its peers. The S&P 500 dropped 0.69%, while competitors showed mixed results: Labcorp fell 0.36%, Charles River Laboratories declined 2.60%, and Quest Diagnostics rose 0.31%. Illumina closed 9.04% below its 52-week high of $207. Trading volume was significantly lower than the 50-day average."
datetime: "2026-08-18T21:25:32.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296271966.md)
  - [en](https://longbridge.com/en/news/296271966.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296271966.md)
generator: "portal-rs"
---

# Illumina Inc. Stock Underperforms Tuesday When Compared To Competitors

This article was automatically generated by MarketWatch using technology from Automated Insights.

Shares of Illumina Inc. (ILMN) shed 2.51% to $188.29 Tuesday, on what proved to be an all-around rough trading session for the stock market, with the S&P 500 Index falling 0.69% to 7,691.76 and Dow Jones Industrial Average falling 0.22% to 53,343.40.

Illumina Inc. closed 9.04% short of its 52-week high of $207.00, which the company achieved on August 3rd.

The stock demonstrated a mixed performance when compared to some of its competitors Tuesday, as Labcorp Holdings Inc. (LH) fell 0.36% to $322.18, Charles River Laboratories International Inc. (CRL) fell 2.60% to $279.19, and Quest Diagnostics Inc. (DGX) rose 0.31% to $236.25.

Trading volume (1.2 M) remained 735,787 below its 50-day average volume of 1.9 M.

Data source: Dow Jones Market Data, FactSet. Data compiled August 18, 2026.

This content was created by MarketWatch, which is operated by Dow Jones & Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.

(END) Dow Jones Newswires

08-18-26 1725ET

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## Related News & Research

- [Illumina (ILMN) Following Novacyt Deal Has Investors Asking If The Stock Looks Fully Valued](https://longbridge.com/en/news/298502316.md)
- [Illumina Insider Sells $57M in Stock as ILMN Prepares to Join S&P 500](https://longbridge.com/en/news/298261817.md)
- [Illumina director Keith Meister disposes of USD 30.51 million in common shares](https://longbridge.com/en/news/298080177.md)
- [Illumina (ILMN) Stock Looks Cheap On Cash Flow Yet Pricey On Earnings](https://longbridge.com/en/news/297785097.md)
- [Illumina Inc. Stock Outperforms Competitors Despite Losses On The Day](https://longbridge.com/en/news/298647145.md)

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