Zscaler shares rose 3% premarket after Q4 EPS beat at $0.89 vs $0.80 estimated, with revenue up 21% to $719 million. CEO Jay Chaudhry said Zero Trust and AI-driven security boosted demand, as ARR crossed $3 billion. FY26 revenue guidance of up to $3.28 billion topped estimates. Barclays raised its target to $320.