Zscaler Inc. (NASDAQ: ZS) saw its shares surge 5.73% in after-hours trading on Thursday following the release of its third-quarter fiscal 2025 financial results, which exceeded analyst expectations. The cloud security leader also provided an optimistic outlook and announced a key executive appointment.

For the third quarter ended April 30, 2025, Zscaler reported adjusted earnings per share of $0.84, surpassing the consensus estimate of $0.75. Revenue came in at $678.03 million, beating the expected $666.86 million and representing a 22.57% increase from the same period last year. The company's billings, a key metric for future revenue, grew to $784.5 million.

Adding to the positive sentiment, Zscaler provided strong guidance for both the fourth quarter and full fiscal year 2025. The company expects Q4 non-GAAP earnings per share between $0.79 and $0.80 on revenue of $705 million to $707 million. For the full year, Zscaler projects non-GAAP earnings per share of $3.18 to $3.19 on revenue of $2.659 billion to $2.661 billion, both ahead of analyst expectations.

In a separate announcement, Zscaler named Kevin Rubin as its new Chief Financial Officer. Rubin, who brings extensive experience from his previous roles at companies like BetterUp and Alteryx, will succeed Remo Canessa. This strategic appointment is seen as a positive move to support Zscaler's next phase of growth and innovation.

The combination of strong financial performance, optimistic future guidance, and the addition of a seasoned financial executive to the leadership team has clearly resonated with investors, driving the after-hours stock price increase. As organizations continue to prioritize cloud security and zero-trust architectures, Zscaler appears well-positioned to capitalize on these trends and maintain its growth trajectory.