Seagate Technology Holdings PLC vs United Microelectronics Corp — how do they compare? Seagate Technology Holdings PLC trades at $782.4 (market cap $176.19B), while United Microelectronics Corp trades at $22.92 (market cap $58.02B). The key difference: Seagate Technology Holdings PLC is far larger — about 3× United Microelectronics Corp's market cap, and United Microelectronics Corp pays the higher dividend (1.76%). Which is the better fit depends on your goals — on Pluang, investors hold Seagate Technology Holdings PLC for 41 Days and United Microelectronics Corp for 42 Days on average.
| STX | UMC | |
|---|---|---|
Market Cap | $176.19B | $58.02B |
Volume | 5,061,875 | 11,897,809 |
Sector | Technology | Technology |
52-Week High | $1.09K | $28.02 |
52-Week Low | $211.63 | $7.02 |
Typical Hold Time | 41 Days | 42 Days |
Enterprise Value | $178.34B | $55.10B |
Dividend Yield | 0.38% | 1.76% |
Signals from Pluang's Aura AI — not financial advice
Seagate Technology (STX) trades at $780.39, down 3.34% amid concerns about increased competition from Toshiba's planned HDD production expansion. The stock shows strong fundamental performance with Q2 2026 EPS beating expectations at $5.71 versus $5.10, and maintains robust profitability with 26.11% net margin and 371.53% ROE. Technical indicators signal bearish momentum with price below key pivot points, though RSI suggests potential oversold conditions at 24.89.
Despite near-term competitive pressures, Seagate's dominant position in AI storage and strong earnings trajectory support long-term growth. The consensus price target of $1,130 represents 45% upside potential, but investors face risks from pricing pressure and market share erosion as Toshiba expands capacity in 2027.
UMC trades at $22.92, down 1.67% on the day, with a bullish technical signal despite recent weakness. The company has delivered strong earnings beats in recent quarters, with Q2 2026 EPS of $0.54 significantly exceeding the $0.16 estimate. Revenue is projected to grow to $250.7 billion in 2026, with net income margin improving to 32.75%. Cash flow trends show a positive turnaround with 2025 net cash flow of $5.66 billion after two years of negative flows.
The outlook remains positive with strong profitability metrics and analyst upgrades, though competition and market volatility present risks. The stock appears fundamentally sound with improving cash generation and earnings momentum, supported by AI-driven semiconductor demand. Valuation metrics suggest reasonable pricing relative to growth prospects.
Trailing returns across standard periods
What Pluang investors did over the last 30 days
Latest headlines on both assets
Seagate is a leading supplier of hard disk drives for data storage to the enterprise and consumer markets. It forms a practical duopoly in the market with its chief rival, Western Digital
Read more on STX →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 →