US cybersecurity company Zscaler reports Q3 revenue up 25% YoY to $850.5M, above $835.4M est., and forecasts Q4 revenue below est.; ZS drops 18%+ after hours Reuters 2026-05-26 Harshita Mary Varghese ZS, Zscaler Related Coverage Zscaler Earnings Top Estimates. Cybersecurity Stock Falls On Weak Guidance. Investor's Business Daily · Reinhardt Krause Zscaler Stock Plunges 17% on Weak Fourth-Quarter Guidance Barron's Online · Kit Norton Zscaler tops estimates and lifts guidance, but free cash flow cut sends shares lower SiliconANGLE · Duncan Riley Zscaler Q3 strong, outlook hit by component costs, sales turnover Constellation Research · Larry Dignan Zscaler Stock Tumbles On Q3 Earnings: Key Details From The Report Benzinga · Adam Eckert Zscaler's (NASDAQ:ZS) Q1 CY2026: Beats On Revenue But Stock Drops 16.1% Yahoo Finance · Jabin Bastian As Zscaler Doubles Down on AI Security, ZS Stock Still Needs More to Justify Its Steep Valuation Barchart.com · Nauman Khan