VeriSign is trading 20.31% down at $238.60 after investors reassessed the potential impact of a class-action antitrust lawsuit challenging its .com registry pricing and monopoly position. - The lawsuit alleges VeriSign and ICANN maintained an unlawful arrangement that enabled excessive domain fees. - The decline appears company-specific; broader markets were largely mixed on September 22, 2026. - No earnings release or new company statement was identified.