Fastly Inc vs Zscaler Inc — how do they compare? Fastly Inc trades at $28.51 (market cap $4.58B), while Zscaler Inc trades at $176.2 (market cap $28.87B). The key difference: Zscaler Inc is far larger — about 6.3× Fastly Inc's market cap, and Fastly Inc is trading nearer its 52-week high, Zscaler Inc nearer its low. Which is the better fit depends on your goals.
| FSLY | ZS | |
|---|---|---|
Market Cap | $4.58B | $28.87B |
Sector | Technology | Technology |
52-Week High | $33.50 | $336.27 |
52-Week Low | $6.85 | $118.05 |
Enterprise Value | $4.65B | $27.20B |
Signals from Pluang's Aura AI — not financial advice
Fastly (FSLY) trades at $28.59, up 3.03% today, with strong technical momentum and bullish moving averages. The company reported consecutive earnings beats, with Q2 2026 EPS of $0.15 surpassing estimates, and raised its 2026 outlook driven by security and AI demand. Revenue growth is robust at 23% year-over-year, though the company remains unprofitable with a net income margin of -11.8%.
The outlook is positive given accelerating revenue growth and strategic positioning in edge cloud and AI infrastructure, but risks include persistent losses, high valuation multiples, and competitive pressures. Analyst consensus is cautious with a hold-heavy rating and a $28.25 price target, slightly below the current price.
Zscaler (ZS) trades at $176.94, up 0.15% with strong bullish technical signals and positive analyst sentiment. The stock shows consistent revenue growth from $1.1B in 2022 to $2.67B in 2025, though it remains unprofitable with a -2.44% net margin. Recent earnings beats and leadership in Gartner Magic Quadrant for SASE platforms highlight operational strength. Current price sits near resistance at $177 with RSI indicating overbought conditions.
Outlook remains positive with 79% analyst buy ratings and $191.81 consensus target, but risks include negative profitability, high valuation multiples (P/S 8.94), and projected negative cash flow in 2026. The cybersecurity leader benefits from AI-driven security demand but faces execution risks amid competitive pressures.
Trailing returns across standard periods
Latest headlines on both assets
Fastly operates a content delivery network, which is necessary for entities to provide faster and more reliable online content. Fastly's strategy differs from traditional CDNs, which focused on locating servers in as many locations as possible to store copies of files that consumers most use. Fastly has far fewer sites than traditional CDNs, but it houses servers in the most network-dense data centers. Instead of simply storing static content, it allows its customers to program on its platform, enabling edge computing and better service of the more dynamic content that was traditionally not well served by CDNs. Fastly gears its service to the largest, most sophisticated enterprises rather than small companies and generated about two thirds of its revenue in the United States in 2020.
Read more on FSLY →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 →