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Justice Department Requires Divestiture of Spirent Test Units Before Approving Keysight’s $1.5 Billion Acquisition

This measure preserves competition in high-speed ethernet, network security, RF channel emulation markets.

United States Department of Justice logo and U.S. flag are seen in this illustration taken April 23, 2025. REUTERS/Dado Ruvic/Illustration/File Photo

Overview

  • The Justice Department’s Antitrust Division filed a lawsuit and proposed settlement forcing Keysight to divest Spirent’s high-speed ethernet, network security testing, and RF channel emulation businesses to move forward with the $1.5 billion acquisition.
  • Regulators flagged the combined companies’ overwhelming market shares—85% in high-speed ethernet testing, over 60% in network security testing, and more than 50% in RF channel emulation—as likely to stifle competition.
  • The three business lines represent about 40% of Spirent’s revenues and are set to be sold to Viavi Solutions for up to $425 million.
  • Viavi Solutions plans to hire key Spirent staff supporting the divested units to maintain product continuity and technical expertise.
  • Under the Tunney Act, the proposed consent decree will be published in the Federal Register for a 60-day period of public comment before final court approval.