Atomera Incorporated vs United Microelectronics Corp — how do they compare? Atomera Incorporated trades at $5.57 (market cap $209.56M), while United Microelectronics Corp trades at $18.95 (market cap $47.80B). The key difference: United Microelectronics Corp is far larger — about 228.1× Atomera Incorporated's market cap, and United Microelectronics Corp pays a 2.13% dividend while Atomera Incorporated pays none. Which is the better fit depends on your goals.
| ATOM | UMC | |
|---|---|---|
Market Cap | $209.56M | $47.80B |
Sector | Technology | Technology |
52-Week High | $12.11 | $28.02 |
52-Week Low | $1.99 | $6.58 |
Enterprise Value | $172.37M | $44.92B |
Dividend Yield | — | 2.13% |
Signals from Pluang's Aura AI — not financial advice
ATOM trades at $5.48, up 3.1% today, but faces significant fundamental challenges with a P/S ratio of 797.66 and deeply negative profitability metrics including a -78.7% gross margin and -9,742% net income margin. The company has missed earnings expectations for three consecutive quarters while technical indicators show bearish momentum with RSI signaling overbought conditions at 78.05. Recent news highlights progress in semiconductor technology licensing but financial performance remains weak.
Despite unanimous analyst buy ratings, ATOM presents high-risk exposure due to substantial losses, negative cash flow, and elevated valuation multiples. The semiconductor licensing business shows technological promise but requires significant revenue acceleration to justify current valuation. Near-term catalysts depend on commercial adoption breakthroughs while downside risk remains elevated given current financial metrics.
UMC trades at $18.72, down 2.5% today, amid a bearish technical signal with key resistance at $19. The company reported strong Q2 2026 earnings, beating EPS estimates with $0.54 vs. $0.16 expected, and announced fab expansions in Singapore and Taiwan to meet AI-driven demand. Revenue growth is projected to rise to $250.7B in 2026, with a net income margin of 32.75%, though profit margins have declined from 2022 peaks. Analyst sentiment is mixed, with 26.7% buy ratings but a majority hold consensus.
The outlook for UMC is cautiously optimistic, driven by AI expansion and solid profitability, but risks include competitive pressures and margin compression. Near-term price action hinges on breaking resistance at $19, with support at $18. Institutional activity shows mixed positioning, reflecting uncertainty over execution amid capital expenditure increases.
Trailing returns across standard periods
Atomera is a semiconductor materials engineering company. Its Mears Silicon Technology (MST) is a patented thin film that enhances transistor performance, power efficiency, and cost for global chip manufacturers.
Read more on ATOM →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 →