Zscaler is trading 4.12% up at $240.86 on October 22, 2026, as buyers favor cybersecurity and cash-generative software amid pressure on AI-infrastructure and chip stocks. - Shares rose roughly 7% on October 21 after Zscaler’s NVIDIA AI-agent security partnership, which may support the rebound; available reporting identifies no new Zscaler-specific October 22 announcement as the direct trigger. - Volume was described as light; report prices differed from the supplied live price context, so the supplied figure is used.