

Zscaler vs Western Digital
Cloud security company replacing older network hardware vs Global data storage manufacturer for consumer and enterprise markets. Which is the better buy for your portfolio in June 2026? Plain-English answer below.
Zscaler runs a cloud-native zero trust security platform that routes enterprise traffic through its global network, while Western Digital manufactures hard disk drives and NAND flash storage for data centers and consumer devices. Zscaler vs Western Digital contrasts a high-growth cybersecurity software model with a cyclical hardware manufacturer whose fortunes swing with memory pricing. Readers will see how business model resilience, pricing power, and demand patterns diverge between a security software platform and a commodity storage hardware producer.
Zscaler runs a cloud-native zero trust security platform that routes enterprise traffic through its global network, while Western Digital manufactures hard disk drives and NAND flash storage for data ...
Why It’s Moving

Zscaler Shares Surge as Wall Street Analysts Pivot to Strong Buy Amid Expanding AI Security Demand
- Multiple Wall Street firms have elevated Zscaler to a 'Strong Buy' consensus, citing accelerating adoption of zero-trust architecture in response to evolving cyber threats targeting AI workloads.
- Analyst commentary highlights that Zscaler's revenue trajectory is outpacing industry averages, signaling robust contract renewals and new enterprise deals driven by regulatory compliance needs.
- The market is interpreting recent sector-wide data as indicative of a sustained upcycle in cybersecurity spending, with Zscaler positioned to capture significant upside as the leading cloud-native security provider.

WDC Shares Slide as Analysts Warn of NAND Downturn and Payout Risks
- Goldman Sachs downgraded WDC to Sell from Neutral, citing expectations that the NAND storage downturn will intensify and gross margins will fall from roughly 28% to 17% by 2023.
- Multiple analysts have highlighted a potential -31% downside risk, linking the valuation drop to concerns over volatile quarterly revenue forecasts and insider selling activity.
- The broader storage sector is experiencing a recalibration as investors weigh valuation concerns against strong underlying fundamentals, leading to a temporary correction in WDC shares.

Zscaler Shares Surge as Wall Street Analysts Pivot to Strong Buy Amid Expanding AI Security Demand
- Multiple Wall Street firms have elevated Zscaler to a 'Strong Buy' consensus, citing accelerating adoption of zero-trust architecture in response to evolving cyber threats targeting AI workloads.
- Analyst commentary highlights that Zscaler's revenue trajectory is outpacing industry averages, signaling robust contract renewals and new enterprise deals driven by regulatory compliance needs.
- The market is interpreting recent sector-wide data as indicative of a sustained upcycle in cybersecurity spending, with Zscaler positioned to capture significant upside as the leading cloud-native security provider.

WDC Shares Slide as Analysts Warn of NAND Downturn and Payout Risks
- Goldman Sachs downgraded WDC to Sell from Neutral, citing expectations that the NAND storage downturn will intensify and gross margins will fall from roughly 28% to 17% by 2023.
- Multiple analysts have highlighted a potential -31% downside risk, linking the valuation drop to concerns over volatile quarterly revenue forecasts and insider selling activity.
- The broader storage sector is experiencing a recalibration as investors weigh valuation concerns against strong underlying fundamentals, leading to a temporary correction in WDC shares.
Investment Analysis

Zscaler
ZS
Pros
- Zscaler reported a 21% year-over-year revenue increase in Q4 2025, reaching $719 million, with billings up 32% to $1.2 billion, showing strong growth momentum.
- The company was recognized as a leader in the Forrester Wave for SASE solutions, highlighting its strong position in cloud-native cybersecurity.
- Zscaler guided fiscal 2026 annual recurring revenue (ARR) to $3.68 billion, indicating solid future revenue visibility and expanding margins.
Considerations
- Despite revenue growth, Zscaler reported losses of $41.48 million in 2025, though reduced by 28%, losses still persist impacting profitability.
- The stock trades at a steep premium with significant valuation concerns amid increasing competition in the cybersecurity sector.
- Price forecasts from some analysts predict a potential near-term decline, with average price targets indicating possible downside by end of 2025.
Pros
- Western Digital is a market leader in digital storage solutions, serving both industrial and consumer markets with a broad product portfolio.
- The stock trades at a moderate P/E ratio around 13, indicating reasonable valuation compared to peers in the tech storage sector.
- Western Digital offers a dividend, albeit modest, with some of the highest dividend yields among S&P 500 companies in the technology space.
Considerations
- The company faces exposure to cyclical hardware demand and commodity sensitivity, impacting revenue and profitability volatility.
- Competitive pressure from emerging storage technologies and rivals can challenge market share and margin expansion.
- Macroeconomic or geopolitical risks affecting supply chains and global demand for storage devices could negatively impact performance.
Zscaler (ZS) Next Earnings Date
The next earnings date for Zscaler (ZS) is expected to be September 1, 2026, based on its typical post-quarter reporting pattern. That release should cover Q4 fiscal 2026 results. Some data providers list a slightly different window in early September, but the consensus estimate centers on September 1.
Western Digital (WDC) Next Earnings Date
Western Digital’s next earnings date is expected on July 29, 2026, although the company has not formally confirmed it yet. The report should cover Q4 fiscal 2026. This timing is based on the company’s usual late-July reporting pattern.
Zscaler (ZS) Next Earnings Date
The next earnings date for Zscaler (ZS) is expected to be September 1, 2026, based on its typical post-quarter reporting pattern. That release should cover Q4 fiscal 2026 results. Some data providers list a slightly different window in early September, but the consensus estimate centers on September 1.
Western Digital (WDC) Next Earnings Date
Western Digital’s next earnings date is expected on July 29, 2026, although the company has not formally confirmed it yet. The report should cover Q4 fiscal 2026. This timing is based on the company’s usual late-July reporting pattern.
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