MACOM is trading at $313.89 (-4.16%) amid likely broader technology-market pressure, with the Nasdaq Composite down 1.19% and semiconductor shares struggling before the open.

  • No fresh company-specific announcement or analyst action was identified for August 18, 2026.
  • MACOM advanced 3.50% on August 17.
  • Earlier fiscal-third-quarter results were strong, but that catalyst was reported August 6 and does not explain today’s decline.