United Microelectronics Corp vs Zscaler Inc — how do they compare? United Microelectronics Corp trades at $22 (market cap $51.00B), while Zscaler Inc trades at $148.75 (market cap $24.23B). The key difference: United Microelectronics Corp is far larger — about 2.1× Zscaler Inc's market cap, and United Microelectronics Corp pays a 2.03% dividend while Zscaler Inc pays none. Which is the better fit depends on your goals.
| UMC | ZS | |
|---|---|---|
Market Cap | $51.00B | $24.23B |
Sector | Technology | Technology |
52-Week High | $28.02 | $336.27 |
52-Week Low | $6.58 | $118.05 |
Enterprise Value | $48.57B | $22.55B |
Dividend Yield | 2.03% | — |
Signals from Pluang's Aura AI — not financial advice
UMC trades at $21.19, down 0.28% on the day, with a bullish technical signal from oscillators but bearish moving averages. The company reported Q1 2026 EPS of $0.20, beating expectations, and maintains a net income margin of 20.25%. Recent news highlights mass production of silicon photonics ICs and strong June 2026 sales growth of 22.85% year-over-year.
Outlook is supported by earnings beats and specialty technology demand, but risks include valuation above sector peers and competitive pressures. Analysts are mixed with 26.67% buy ratings, suggesting cautious optimism amid solid execution.
Zscaler trades at $148.72, down 0.78% on the day, with strong technical momentum showing bullish moving average signals and key support at $147. The company demonstrates robust revenue growth, increasing from $1.1B in 2022 to $2.67B in 2025, while narrowing net losses from -$390M to -$41M. Recent earnings beats and accelerating Zero Trust adoption position Zscaler for continued enterprise security market share gains amid growing cybersecurity spending trends.
Zscaler presents a compelling growth story with 79% analyst buy ratings and a $192.46 price target offering 29% upside potential. However, persistent profitability challenges, rising AI infrastructure costs, and ongoing class action investigations create near-term execution risks. The stock's premium valuation at 7.5x sales requires sustained revenue acceleration to justify current levels.
Trailing returns across standard periods
Founded in 1980, United Microelectronics is the world's third-largest dedicated chip foundry, with 7% market share in 2021, according to Gartner, after TSMC and GlobalFoundries. UMC's headquarters are in Hsinchu, Taiwan, and it operates 12 fabs in Taiwan, Mainland China, Japan and Singapore, with additional sales offices in Europe, the U.S. and South Korea. UMC features a diverse customer base including Texas Instruments, MediaTek, Qualcomm, Broadcom, Xilinx and Realtek, supplying a wide range of products applied in communications, display, memory, automotive and more. UMC employs about 20,000 people.
Read more on UMC →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 →