---
title: "Illumina Inc. Stock Underperforms Friday When Compared To Competitors"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/293076203.md"
description: "Illumina Inc. (ILMN) shares fell 1.89% to $186.65 on Friday, underperforming the broader market as the S&P 500 and Dow Jones also declined. The stock closed 5.09% below its 52-week high. Performance was mixed relative to competitors: Labcorp and Quest Diagnostics rose slightly, while Charles River Laboratories fell more sharply. Trading volume remained below the 50-day average."
datetime: "2026-07-17T21:24:59.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/293076203.md)
  - [en](https://longbridge.com/en/news/293076203.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/293076203.md)
generator: "portal-rs"
---

# Illumina Inc. Stock Underperforms Friday When Compared To Competitors

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

Shares of Illumina Inc. (ILMN) slipped 1.89% to $186.65 Friday, on what proved to be an all-around poor trading session for the stock market, with the S&P 500 Index falling 1.01% to 7,457.69 and Dow Jones Industrial Average falling 0.77% to 52,146.42.

Illumina Inc. closed 5.09% below its 52-week high of $196.66, which the company achieved on July 7th.

The stock demonstrated a mixed performance when compared to some of its competitors Friday, as Labcorp Holdings Inc. (LH) rose 0.50% to $283.36, Charles River Laboratories International Inc. (CRL) fell 2.10% to $224.35, and Quest Diagnostics Inc. (DGX) rose 0.61% to $210.68.

Trading volume (1.3 M) remained 671,338 below its 50-day average volume of 1.9 M.

Data source: Dow Jones Market Data, FactSet. Data compiled July 17, 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

07-17-26 1724ET

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- [LH.US](https://longbridge.com/en/quote/LH.US.md)
- [CRL.US](https://longbridge.com/en/quote/CRL.US.md)
- [DGX.US](https://longbridge.com/en/quote/DGX.US.md)

## 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.**