UCTT vs. STM

Last updated Apr 1, 2026

Compare and contrast key facts about Ultra Clean Holdings, Inc. (UCTT) and STMicroelectronics N.V. (STM).

Performance

UCTT vs. STM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Ultra Clean Holdings, Inc. (UCTT) and STMicroelectronics N.V. (STM). The values are adjusted to include any dividend payments, if applicable.

UCTT vs. STM - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
UCTT Ultra Clean Holdings, Inc.	145.48%	-29.54%	5.30%	2.99%	-42.21%	84.14%	32.72%	177.10%	-63.32%	138.04%
STM STMicroelectronics N.V.	33.57%	5.28%	-49.67%	41.66%	-26.76%	32.39%	38.91%	96.34%	-35.65%	94.77%

Fundamentals

Market Cap UCTT : $2.82B STM : $30.75B
EPS UCTT : -$4.00 STM : $0.28
PS Ratio UCTT : 1.37 STM : 2.63
PB Ratio UCTT : 3.96 STM : 1.72
Total Revenue (TTM) UCTT : $2.05B STM : $11.84B
Gross Profit (TTM) UCTT : $322.90M STM : $4.01B
EBITDA (TTM) UCTT : -$50.30M STM : $2.41B

Returns By Period

In the year-to-date period, UCTT achieves a 145.48% return, which is significantly higher than STM's 33.57% return. Over the past 10 years, UCTT has outperformed STM with an annualized return of 27.80%, while STM has yielded a comparatively lower 21.41% annualized return.

UCTT

• 1D: 11.25%
• 1M: 2.47%
• YTD: 145.48%
• 6M: 128.18%
• 1Y: 190.43%
• 3Y*: 23.31%
• 5Y*: -0.46%
• 10Y*: 27.80%

STM

• 1D: 10.31%
• 1M: 3.09%
• YTD: 33.57%
• 6M: 23.02%
• 1Y: 59.31%
• 3Y*: -12.68%
• 5Y*: -1.74%
• 10Y*: 21.41%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

UCTT vs. STM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

UCTT

UCTT Risk / Return Rank: 93
UCTT Sharpe Ratio Rank: 95
UCTT Sortino Ratio Rank: 91
UCTT Omega Ratio Rank: 88
UCTT Calmar Ratio Rank: 96
UCTT Martin Ratio Rank: 95

STM

STM Risk / Return Rank: 74
STM Sharpe Ratio Rank: 77
STM Sortino Ratio Rank: 74
STM Omega Ratio Rank: 75
STM Calmar Ratio Rank: 73
STM Martin Ratio Rank: 72

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

UCTT vs. STM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Ultra Clean Holdings, Inc. (UCTT) and STMicroelectronics N.V. (STM). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	UCTT	STM	Difference
Sharpe ratio Return per unit of total volatility	2.61	1.08	+1.53
Sortino ratio Return per unit of downside risk	2.94	1.73	+1.22
Omega ratio Gain probability vs. loss probability	1.37	1.24	+0.13
Calmar ratio Return relative to maximum drawdown	6.14	1.59	+4.54
Martin ratio Return relative to average drawdown	16.06	3.60	+12.46
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

UCTT vs. STM - Sharpe Ratio Comparison

The current UCTT Sharpe Ratio is 2.61, which is higher than the STM Sharpe Ratio of 1.08. The chart below compares the historical Sharpe Ratios of UCTT and STM, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	UCTT	STM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.61	1.08	+1.53
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.01	-0.04	+0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.48	0.49	-0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.16	0.20	-0.03

Correlation

The correlation between UCTT and STM is 0.45, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

UCTT vs. STM - Dividend Comparison

UCTT has not paid dividends to shareholders, while STM's dividend yield for the trailing twelve months is around 1.04%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
UCTT Ultra Clean Holdings, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
STM STMicroelectronics N.V.	1.04%	1.39%	1.32%	0.48%	0.67%	0.45%	0.50%	0.89%	1.73%	0.98%	2.10%	5.11%

Drawdowns

UCTT vs. STM - Drawdown Comparison

The maximum UCTT drawdown since its inception was -95.20%, roughly equal to the maximum STM drawdown of -94.40%. Use the drawdown chart below to compare losses from any high point for UCTT and STM.

Drawdown Indicators

	UCTT	STM	Difference
Max Drawdown Largest peak-to-trough decline	-95.20%	-94.40%	-0.80%
Max Drawdown (1Y) Largest decline over 1 year	-29.74%	-36.35%	+6.61%
Max Drawdown (5Y) Largest decline over 5 years	-72.56%	-66.66%	-5.90%
Max Drawdown (10Y) Largest decline over 10 years	-79.34%	-66.66%	-12.68%
Current Drawdown Current decline from peak	-13.59%	-34.41%	+20.82%
Average Drawdown Average peak-to-trough decline	-46.71%	-55.49%	+8.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.36%	16.08%	-4.72%

Volatility

UCTT vs. STM - Volatility Comparison

Ultra Clean Holdings, Inc. (UCTT) has a higher volatility of 26.31% compared to STMicroelectronics N.V. (STM) at 18.64%. This indicates that UCTT's price experiences larger fluctuations and is considered to be riskier than STM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	UCTT	STM	Difference
Volatility (1M) Calculated over the trailing 1-month period	26.31%	18.64%	+7.67%
Volatility (6M) Calculated over the trailing 6-month period	54.04%	35.35%	+18.69%
Volatility (1Y) Calculated over the trailing 1-year period	73.64%	55.35%	+18.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	57.78%	43.15%	+14.63%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	58.23%	43.64%	+14.59%

Financials

UCTT vs. STM - Profitability Comparison

The chart below illustrates the profitability comparison between Ultra Clean Holdings, Inc. and STMicroelectronics N.V. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

UCTT - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Ultra Clean Holdings, Inc. reported a gross profit of 77.20M and revenue of 506.60M. Therefore, the gross margin over that period was 15.2%.

STM - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, STMicroelectronics N.V. reported a gross profit of 1.46B and revenue of 3.38B. Therefore, the gross margin over that period was 43.3%.

UCTT - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Ultra Clean Holdings, Inc. reported an operating income of 10.90M and revenue of 506.60M, resulting in an operating margin of 2.2%.

STM - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, STMicroelectronics N.V. reported an operating income of 206.85M and revenue of 3.38B, resulting in an operating margin of 6.1%.

UCTT - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Ultra Clean Holdings, Inc. reported a net income of -3.30M and revenue of 506.60M, resulting in a net margin of -0.7%.

STM - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, STMicroelectronics N.V. reported a net income of -29.98M and revenue of 3.38B, resulting in a net margin of -0.9%.