UMC vs STM

Head-to-Head Stock Analysis & Investment Rating

Last Updated: Oct 23, 2026

UMC

48.9
AI Score
VS
STM Wins

STM

56.5
AI Score

Investment Advisor Scores

UMC

49score
Recommendation
HOLD

STM

57score
Recommendation
HOLD

AI Analyst Insights

Detailed Metrics Comparison

Metric UMC STM Winner
Forward P/E 23.753 20.0401 STM
PEG Ratio 1.3348 0.1937 STM
Revenue Growth 17.0% 26.1% STM
Earnings Growth 374.6% -33.3% UMC
Tradestie Score 48.9/100 56.5/100 STM
Profit Margin 33.3% 3.6% UMC
Beta 1.00 1.00 Tie
AI Recommendation HOLD HOLD Tie

Relative Price Performance (Last 90 Days)

UMC 1M: -24.9% · 3M: -4.9% STM 1M: -16.0% · 3M: -14.5%

Current Technical Phase

UMC

Neutral
Hold

Mixed signals - no dominant trend phase, RSI 30

RSI (14): 29.8 · Price: $18.53

STM

Markdown
Sell / avoid

Price below a falling SMA50 (slope -3.5%), weak momentum, RSI 33

RSI (14): 32.7 · Price: $44.09

Fundamentals Snapshot

Metric UMC STM
Market Cap — —
Forward P/E 21.1 17.3
Trailing P/E 18.7 1185.8
Revenue (TTM) — —
Revenue Growth 0.2% 0.3%
Gross Margin 0.3% 0.3%
Operating Margin 0.2% 0.1%
EPS 1.06 0.04
Dividend Yield 0.02% 0.01%

Frequently Asked Questions

Based on our detailed analysis, STM is currently the stronger investment candidate based on our comprehensive scoring model.

We analyze revenue and earnings growth rates in the "Growth" section above. Generally, the company with higher year-over-year revenue and EPS growth is fostering better expansion. Check the table above for the specific growth percentages.

Valuation is determined by metrics like the P/E Ratio and PEG Ratio. A lower P/E typically suggests a stock is cheaper relative to its earnings. Refer to the "Valuation" section in our comparison table to see which stock currently trades at a more attractive multiple.