Zscaler Inc. (NASDAQ: ZS) shares surged 5.07% in pre-market trading on Friday, following the cloud security company's impressive third-quarter fiscal 2025 financial results and optimistic outlook. The company also announced a key executive appointment, further boosting investor confidence.

For the quarter ended April 30, 2025, Zscaler reported adjusted earnings per share of $0.84, significantly beating the analyst consensus estimate of $0.76. Revenue came in at $678.03 million, surpassing the expected $667 million and representing a 22.57% increase from the same period last year. The company's calculated billings, a key metric for future revenue, grew by 25% year-over-year to $784.5 million.

Adding to the positive sentiment, Zscaler raised its full-year guidance, now expecting revenue between $2.659 billion and $2.661 billion, up from its previous forecast of $2.640 billion to $2.654 billion. Non-GAAP earnings per share for the full year are projected at $3.18 to $3.19, higher than the earlier guidance of $3.04 to $3.09. Both figures surpassed analyst expectations, demonstrating the company's confidence in its growth trajectory. In a separate announcement, Zscaler named Kevin Rubin as its new Chief Financial Officer, a move seen as strategic to support the company's next phase of growth and innovation in the cybersecurity space.