STM vs TSM Stock Comparison
Compare STM and TSM across AIQ Score, fundamentals, valuation, momentum, risk, analyst expectations and current market evidence.
What is the main difference between STM and TSM?
TSM leads the current stock comparison as Taiwan Semiconductor Manufacturing Company Limited, with the clearest separation coming from quality and the broader AIQ evidence mix.
AlgovestIQ AIQ Comparison
STMicroelectronics N.V. vs Taiwan Semiconductor Manufacturing Company Limited
TSM leads
TSM leads by 24 AIQ points, primarily on Quality and Momentum. Wall Street currently favors STM on target upside.
Stable: 4 of 6 evidence groups support TSM, and its signal state is cleanly positive.
STMicroelectronics N.V.
Taiwan Semiconductor Manufacturing Company Limited
The Algovestiq AIQ Score currently favors TSM over STM, 68 versus 44 as of Sep 6, 2026. TSM's advantage is driven primarily by stronger quality and momentum. TSM also shows the stronger technical structure relative to its 50-day moving average, though analyst target upside currently favors STM. 4 of 6 covered evidence groups favor TSM today, and the comparison is rated Stable on stability. TSM lead: Stable — the AIQ differential has held near 24 points over 30 sessions.
Compare STMicroelectronics N.V. and Taiwan Semiconductor Manufacturing Company Limited across the Algovestiq AIQ Score, valuation, quality, momentum, risk, technicals and analyst expectations.
Performance over time
Price-return comparison using available daily close history.
Total return comparison
Growth of $10,000
Based on available close-price history. Distribution reinvestment is not added unless already reflected in the source series.
Compare STM and TSM against another ticker
Open a multi-ticker workspace without changing this focused pair page.
AIQ Factor Divergence
Where the two separate, on the four dimensions behind the AIQ Score. Bars read outward from a shared zero: further from the centre is a wider gap.
- Quality30%45 vs 96TSM +51
- Momentum25%41 vs 63TSM +22
- Risk Resilience15%54 vs 69TSM +15
- Value30%40 vs 42Even
4 of 6 evidence groups favor TSM. TSM’s edge is concentrated in quality and momentum.
What changed since the last close
Latest scored session 2026-09-05, compared against the prior scored session 2026-09-04.
No factor moved materially.
No new signals fired.
No factor moved materially.
No new signals fired.
TSM's lead was unchanged in the latest snapshot.
Deeper signal detail for each name lives on its own signals page — STM and TSM both carry a full feed there.
The central trade-off
TSM (Taiwan Semiconductor Manufacturing Company Limited): the stronger current systematic profile, led by quality and momentum.
STM (STMicroelectronics N.V.): the counter-case, on analyst expectations — but at materially higher volatility, 40.5% against 25.9%.
The AIQ Score and Wall Street therefore point in different directions on this pair.
Which one fits your objective
The same two names rank differently depending on what you are optimizing for. All six reads are shown at once — none of them is hidden behind a toggle.
Balanced
TSMTSM on the overall AIQ Score, which weights Quality and Value at 30% each.
Growth
TSMTSM on combined revenue and EPS growth.
Value
EvenThe two are level on Value.
Momentum
TSMTSM on the Momentum factor, by 22 points.
Lower downside
TSMTSM on Risk Resilience, by 15 points.
Analyst upside
STMSTM on implied upside to the consensus price target.
AIQ vs Wall Street
The model and the Street disagree here: AIQ favors TSM, analyst targets favor STM. That disagreement is the most useful thing on this page.
| Measure | STM | TSM | Note |
|---|---|---|---|
| Implied upside to target | +39.8% | +33.6% | STM has more room |
| Target dispersion | +71.2% | +38.4% | Lower is tighter analyst agreement |
| Consensus | Buy | Buy | Context, not a primary driver |
| Analysts covering | 8 | 7 | Higher coverage generally improves confidence |
The two are measuring different things. The AIQ Score reads current fundamentals, valuation, trend and risk; analyst targets price forward expectations. A divergence of this kind is either a contrarian opportunity or a sign the model is missing something already priced in — it is worth resolving before acting on either.
Analyst targets are expectations, not predictions. Dispersion matters as much as the midpoint.
AIQ Agreement Matrix
4 of 6 covered evidence groups favor TSM. A wide gap backed by one group is a weaker case than a narrow gap backed by five.
| Evidence group | Favors | Reading |
|---|---|---|
| AIQ Score | TSM | 44 vs 68 |
| Fundamentals | TSMon balance | revenue growth 12.7% vs 12%; EPS growth 5.3% vs 22.1%; TTM ROE 2.7% vs 39.3%; gross margin 34.3% vs 64.2%; operating margin 5.8% vs 56% — TSM takes 4 of 5 decided legs, not all of them |
| Valuation | Even | Value 40 vs 42 |
| Technicals | TSM | Price vs 50-day -9.9% vs 2%; vs 200-day 15.3% vs 15% |
| Risk Resilience | TSM | Risk Resilience 54 vs 69 |
| Analyst expectations | STM | Target upside 39.8% vs 33.6% |
✓ agrees with the overall verdict · ✕ points the other way. Groups marked “not covered” lack data on one or both of STM and TSM and are excluded from the count.
AIQ Decision Stability
The conclusion rests on a wide gap and broad agreement. It is unlikely to turn on a single session.
- The AIQ gap is wide at 24 points. (supports the conclusion holding)
- The lead has been steady session to session. (supports the conclusion holding)
- The leader's signal state is cleanly positive. (supports the conclusion holding)
Stability combines the score gap, how broadly the evidence agrees, how steady the lead has been across daily snapshots, the current signal state on both names, and analyst dispersion on TSM.
How the comparison changed
120 daily snapshots · Apr 24 – Sep 5TSM lead: Stable — the AIQ differential has held near 24 points over 30 sessions.
- Today
- TSM +24
- 44 vs 68
- 7 sessions ago
- TSM +19
- 42 vs 61
- 30 sessions ago
- TSM +25
- 45 vs 70
- 90 sessions ago
- TSM +19
- 44 vs 63
The lead has not changed hands in this window.
AIQ Signal Divergence
Only the signals that bear on the head-to-head. A conflicted name is carrying bullish and bearish rules at the same time — the technical evidence is not pointing one way.
2 bullish / 0 bearish / 1 neutral
- Golden Cross Active — bullish, trend, long horizon (27.99%)
- ATR Expansion - Breakout Mode — neutral, volatility, short horizon (4.05%)
- MACD Bullish Crossover — bullish, momentum, short horizon
4 bullish / 0 bearish
- Golden Cross Active — bullish, trend, long horizon (12.76%)
- EMA Ribbon Expansion Bullish — bullish, trend, medium horizon
- Uptrend Structure Active — bullish, trend, long horizon
Price vs model alignment
Whether the latest session's price move confirms what the model did over the same session, or contradicts it.
Neither the price nor the AIQ Score moved enough in the latest session to confirm or contradict the other (price +1.87%, AIQ 0 points).
Neither the price nor the AIQ Score moved enough in the latest session to confirm or contradict the other (price +2.85%, AIQ 0 points).
What would flip this result
A state, not a forecast. These are the specific, observable changes that would reverse the verdict — not a price prediction.
- 1STM closes the Quality gap — currently 51 points behind, the largest single contributor to TSM's edge.
- 2STM's ATR Expansion - Breakout Mode turns directional — it is neutral today and would confirm a change in trend.
- 3TSM's Golden Cross Active breaks down — it is the strongest rule currently supporting the verdict.
- 4A regime shift changes factor weighting — the composite weights Quality and Value at 30% each, so a rotation toward either would move the result most.
The full evidence
Every number behind the verdict. The leader is called above each group so you are not left to solve it from the table.
Fundamentals
TSM leads on balance| Metric | STM | TSM |
|---|---|---|
| Revenue growth (YoY) | 12.7% | 12% |
| EPS growth (YoY) | 5.3% | 22.1% |
| Gross margin | 34.3% | 64.2% |
| Operating margin | 5.8% | 56% |
| Return on equity (TTM) | 2.7% | 39.3% |
| Debt to equity | 0.23 | 0.15 |
Performance
STM leads 4 of 6 windows| Metric | STM | TSM |
|---|---|---|
| 1 week (5 sessions) | 5.8% | 2.7% |
| 1 month (20 sessions) | -6.9% | 2.1% |
| 3 months (63 sessions) | -26.1% | 3.3% |
| 6 months (126 sessions) | 66.6% | 26.6% |
| Year to date | 101.4% | 41.1% |
| 1 year (252 sessions) | 102.5% | 85.4% |
Technicals
TSM has the stronger structure| Metric | STM | TSM |
|---|---|---|
| RSI (14) | 38.9 | 48.7 |
| ADX (14) | 26.2 | 7.6 |
| Price vs 50-day | -9.9% | 2% |
| Price vs 200-day | 15.3% | 15% |
| Volatility (1M, annualized) | 40.5% | 25.9% |
Risk
TSM is the more resilient| Metric | STM | TSM |
|---|---|---|
| Beta | 2.69 | 2.18 |
| Sharpe ratio | 1.38 | 1.6 |
| Sortino ratio | 1.92 | 2.57 |
| Max drawdown | -39.5% | -21.6% |
| Current drawdown | -34.6% | -10.2% |
| Annualized volatility | 59.7% | 40.5% |
| Value at risk (95%) | -5.5% | -4.1% |
Straight answers
Each answer is regenerated from the current snapshot, not written once and left to age.
Which is better, STM or TSM?
On the Algovestiq AIQ Score, TSM is the stronger of the two as of Sep 6, 2026, scoring 68 against STM's 44. The edge comes from quality and momentum. This is a systematic score, not a recommendation: it ranks the two on the same evidence, it does not know your holding period or tax position.
Is STM or TSM the better buy right now?
TSM carries the stronger systematic profile as of Sep 6, 2026, and the comparison is rated Stable — 4 of 6 covered evidence groups agree. A Stable rating means the gap is wide and the evidence is broad, so the conclusion is unlikely to turn on a single session.
Why does the AIQ Score favor TSM over STM?
The composite weights Quality at 30%, Value at 30%, Momentum at 25% and Risk Resilience at 15%. TSM leads Quality by 51 points; TSM leads Momentum by 22 points; TSM leads Risk Resilience by 15 points. Where the two split, the factor with the larger weight carries the result.
Which has more analyst upside, STM or TSM?
Analyst price targets imply +39.8% upside for STM and +33.6% for TSM, so the Street currently favors STM. That points the opposite way to the AIQ Score, which favors TSM. The two are measuring different things: the model reads current fundamentals, valuation, trend and risk; the Street is pricing forward expectations. A divergence of this kind is either a contrarian opportunity or a sign the model is missing something the analysts have already priced — it is the single most useful row on this page to investigate. Analyst targets are expectations, not predictions, and dispersion matters as much as the midpoint.
Which is better value, STM or TSM?
Neither name separates on the peer-relative Value factor. The two are level on Value. The Value factor reads valuation relative to sector peers and to the company's own fundamental quality, so it is not the same as simply having the lower multiple.
Which has stronger growth, STM or TSM?
TSM on combined revenue and EPS growth. Growth here is measured on reported revenue and earnings, not on forward estimates — it describes what the businesses have delivered, not what the Street expects next.
Which has stronger momentum, STM or TSM?
TSM on the Momentum factor, by 22 points. Momentum carries 25% of the AIQ composite. It has documented persistence over three- to twelve-month horizons, which makes it a timing input rather than a reason to hold something indefinitely.
Which is riskier, STM or TSM?
TSM is the more resilient of the two, so the other name carries the higher downside risk. TSM on Risk Resilience, by 15 points. The Risk Resilience factor weights 15% of the composite; position sizing usually responds to it more usefully than the buy/avoid decision does.
Is STM more profitable than TSM?
TSM leads on the comparable margin measures — gross margin 34.3% vs 64.2%; operating margin 5.8% vs 56%; ttm roe 2.7% vs 39.3%.
Is TSM's lead over STM getting stronger or weaker?
TSM lead: Stable — the AIQ differential has held near 24 points over 30 sessions. This is measured from 120 daily comparison snapshots between 2026-04-24 and 2026-09-05. The lead has not changed hands in that window.
What would change the STM vs TSM verdict?
The result is a state, not a forecast, so it changes when the underlying evidence changes. Concretely: STM closes the Quality gap — currently 51 points behind, the largest single contributor to TSM's edge; STM's ATR Expansion - Breakout Mode turns directional — it is neutral today and would confirm a change in trend; TSM's Golden Cross Active breaks down — it is the strongest rule currently supporting the verdict; a regime shift changes factor weighting — the composite weights Quality and Value at 30% each, so a rotation toward either would move the result most.
What do the current signals say about STM and TSM?
STM: 2 bullish / 0 bearish / 1 neutral. TSM: 4 bullish / 0 bearish. The most decision-relevant rule on STM is Golden Cross Active (bullish, long horizon). On TSM it is Golden Cross Active (bullish, long horizon).
Compare STM and TSM with others
How this comparison is scored
The Algovestiq AIQ Score composites four factors — Quality (30%), Value (30%), Momentum (25%) and Risk (15%). Sentiment is reported separately as SentimentPulse and is not folded into the composite. Scores refresh every trading day, and this page regenerates from the latest snapshot rather than being written once.
The verdict names a leader, states how broadly six independent evidence groups agree, and rates how durable that conclusion is given the score gap, its recent trajectory and the current signal state on both names.
How to use side-by-side comparison →This comparison is informational and educational, not investment advice. AIQ scores update daily; re-check after earnings, guidance or macro data that materially changes either name’s factor profile.