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title: "FormFactor, Penguin Solutions, Western Digital, Applied Materials, and KLA Corporation Shares Plummet, What You Need To Know — Stuff That Spins"
description: "FormFactor, Penguin Solutions, Western Digital, Applied Materials, and KLA Corporation Shares Plummet, What You Need To Know    Yahoo Finance"
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date: "2026-07-07T19:37:52+00:00"
modified: "2026-07-08T18:04:28.410141+00:00"
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# FormFactor, Penguin Solutions, Western Digital, Applied Materials, and KLA Corporation Shares Plummet, What You Need To Know - Yahoo Finance

**Source:** Unknown  
**Published:** July 7, 2026  
**Original:** https://news.google.com/rss/articles/CBMirgFBVV95cUxOaDZxeVNZVEJUTlA4MlZQTjVKSFk3TnpHamQwcVdFM1gtX281OXFnakRzNS1HSHM3eXhQT1JSVzlrOTJIb3ZDNmdTb01QbDdGWHk0YjdSSjJENEhUTnlscnd5SW5LaEJnejgwMUhiQzZOY21TMF9oRl82V2M0a1NqSVFhU2V2Y2llZjFjUGdsOXoxdG9wd1RlZUVIbXNkQktHUkgxR0ZGT0VuSm9uMFE?oc=5  

## On this page

- [Overview](#overview)

<a id="overview"></a>

## Overview

FormFactor, Penguin Solutions, Western Digital, Applied Materials, and KLA Corporation Shares Plummet, What You Need To Know    Yahoo Finance

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