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Compare ON Semiconductor (ON) vs United Microelectronics Corp (UMC) Price & Performance

ON SemiconductorTrade
United Microelectronics CorpTrade

Price performance (Past 24H)

Key statistics

ON Semiconductor vs United Microelectronics Corp — how do they compare? ON Semiconductor trades at $76.53 (market cap $30.92B), while United Microelectronics Corp trades at $23.01 (market cap $58.02B). The key difference: United Microelectronics Corp is the larger of the two by market cap, and United Microelectronics Corp pays a 1.76% dividend while ON Semiconductor pays none. Which is the better fit depends on your goals — on Pluang, investors hold ON Semiconductor for 5 Days and United Microelectronics Corp for 42 Days on average.

ONUMC
Market Cap
$30.92B$58.02B
Volume
11,639,03711,897,809
Sector
TechnologyTechnology
52-Week High
$133.93$28.02
52-Week Low
$44.90$7.02
Typical Hold Time
5 Days42 Days
Enterprise Value
$31.53B$55.10B
Dividend Yield
—1.76%

Aura AI Summary

Signals from Pluang's Aura AI — not financial advice

ON Semiconductor

No Aura AI signal available yet.

United Microelectronics Corp

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.

Returns comparison

Trailing returns across standard periods

Investor sentiment on Pluang

What Pluang investors did over the last 30 days

ON
48% Buy52% Sell
Avg holding period · 5 Days
UMC
59% Buy41% Sell
Avg holding period · 42 Days

Top news

Latest headlines on both assets

About ON Semiconductor

Onsemi develops power and sensing semiconductors for automotive, industrial, and energy applications. Its products support functions such as electric vehicle systems, energy conversion, automation, and intelligent sensing.

Read more on ON →

About United Microelectronics Corp

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 →