Zscaler stock plunges 31% on weak revenue outlook
Zscaler shares plunged over 31% in their worst single-day drop after the cybersecurity firm issued a weaker-than-expected revenue forecast, raising concerns about slowing demand.

Zscaler shares suffered a record single-day decline of over 31% after the cybersecurity company released a revenue outlook that fell far short of analyst expectations. The sharp selloff erased billions in market value and marked the worst trading day for the stock since its public listing.
The disappointing forecast suggests that Zscaler is facing headwinds in its core cloud security business, potentially due to longer sales cycles or increased competition. For equity traders, such a dramatic move in a high-growth tech stock often triggers sector-wide reassessment, particularly for cybersecurity peers trading at elevated valuations. Investors can track real-time price movements of Zscaler and other cybersecurity stocks on NowPrice's equities platform.
Looking ahead, market participants will focus on Zscaler's upcoming earnings call for management commentary on demand trends and pipeline visibility. The broader cybersecurity sector may also face pressure as investors re-evaluate growth expectations. Key levels to watch include whether Zscaler can stabilize above its previous support zones or if further downside is warranted given the magnitude of the guidance miss.