Price movement over the last 24 hours
Aehr Test Systems vs Zscaler Inc — how do they compare? Aehr Test Systems trades at $65.34 (market cap $2.11B), while Zscaler Inc trades at $142.8 (market cap $24.18B). The key difference: Zscaler Inc is far larger — about 11.5× Aehr Test Systems's market cap, and Aehr Test Systems is trading nearer its 52-week high, Zscaler Inc nearer its low. Which is the better fit depends on your goals.
| AEHR | ZS | |
|---|---|---|
Market Cap | $2.11B | $24.18B |
Sector | Technology | Technology |
52-Week High | $116.58 | $336.27 |
52-Week Low | $13.29 | $118.05 |
Enterprise Value | $2.08B | $22.50B |
Signals from Pluang's Aura AI — not financial advice
AEHR trades at $72.33, up 3.38% today, with a bullish technical signal driven by oversold RSI readings near 24.5, though moving averages remain bearish. The company reported Q1 2026 EPS of -$0.05, beating expectations, but maintains negative profitability margins and cash flow. Recent news highlights strong order growth from AI and silicon photonics customers, including a follow-on system order announced June 17, 2026.
Outlook is mixed: robust order book and AI sector tailwinds support growth, but high P/S of 46.6 and persistent losses pose valuation risks. Analyst consensus is cautious with 33% buy ratings. Key risks include execution on orders and cash burn.
Zscaler (ZS) trades at $149.50, up 1.47% with strong technical momentum and bullish moving average signals. The company shows impressive revenue growth from $1.1B in 2022 to $2.67B in 2025, though remains unprofitable with a -2.44% net margin. Recent earnings have consistently beaten expectations, with Q1 2026 EPS of $1.08 surpassing the $1.01 forecast. Technical indicators show the stock trading near pivot point resistance at $149 with support at $145.
ZS presents a growth investment case with 79% analyst buy ratings and $192.64 consensus target, offering 29% upside. However, profitability challenges, ongoing class action investigations, and projected negative 2026 cash flow pose significant risks. The stock's high valuation multiples (P/S 7.53, EV/EBITDA 157.24) require sustained growth execution to justify current levels.
Trailing returns across standard periods
Aehr Test Systems provides testing and burn-in solutions for the semiconductor industry. Its systems ensure the reliability of AI processors, data center chips, and electric vehicle components at the wafer and package levels.
Read more on AEHR →Zscaler is a security-as-a-service firm that offers its customers cloud-delivered solutions for protecting user devices and data. The firm leverages its position in 150 colocation data centers to deliver traditionally appliance-based security functionality, such as firewalls and sandboxes, as a completely cloud-native platform. The firm focuses on large enterprise customers and offers two primary product suites: Zscaler Internet Access, which securely connects users to externally managed application and websites (such as Salesforce and Google), and Zscaler Private Access, which securely connects users to internally managed applications. Both product suites encompass a broad gamut of capabilities situated across the traditional security stack.
Read more on ZS →