# Fortinet Plunges 26% After-hours and Takes Tenable with It as Gen Digital Rises

> **Platform:** [SPIDITS AI](https://spidits.com/) — Real-Time AI News & Market Intelligence  
> **Published:** 2026-10-28T12:00:00.000Z  
> **Category:** PRODUCT_LAUNCH  
> **Impact Score:** 90/100  
> **Primary Source:** [SiliconANGLE](https://siliconangle.com/2026/10/28/fortinet-plunges-26-after-hours-and-takes-tenable-with-it-as-gen-digital-rises)  
> **Canonical Citation:** [https://spidits.com/timeline/fortinet-plunges-26-after-hours-and-takes-tenable-with-it-as-gen-digital](https://spidits.com/timeline/fortinet-plunges-26-after-hours-and-takes-tenable-with-it-as-gen-digital)

## Executive Summary
A better-than-expected third quarter did nothing to stop shares in network security company Fortinet Inc. from falling about 26% in after-hours trading today. Tenable Holdings Inc., which also topped forecasts, was caught in the selloff that followed across cybersecurity stocks.

## Referenced Coverage & Sources
- **[SiliconANGLE](https://siliconangle.com/2026/10/28/fortinet-plunges-26-after-hours-and-takes-tenable-with-it-as-gen-digital-rises)**: Fortinet plunges 26% after-hours and takes Tenable with it as Gen Digital rises — _A better-than-expected third quarter did nothing to stop shares in network security company Fortinet Inc. from falling about 26% in after-hours trading today. Tenable Holdings Inc., which also topped forecasts, was caught in the selloff that followed across cybersecurity stocks. Shares in..._

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