STMPA.PA vs. ON

Last updated Jun 13, 2026

STMPA.PA (STMicroelectronics N.V.) and ON (ON Semiconductor Corporation) are both stocks. Both operate in the Semiconductors industry within the Technology sector. Over the past 10 years, STMPA.PA returned 31.57%/yr vs 27.75%/yr for ON. At a 0.44 correlation, their price movements are largely independent.

Performance

STMPA.PA vs. ON - Performance Comparison

The chart below illustrates the hypothetical performance of a €10,000 investment in STMicroelectronics N.V. (STMPA.PA) and ON Semiconductor Corporation (ON). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

STMPA.PA is traded in EUR, while ON is traded in USD. To make them comparable, the ON values have been converted to EUR using the latest available exchange rates.

Returns By Period

In the year-to-date period, STMPA.PA achieves a 202.79% return, which is significantly higher than ON's 119.00% return. Over the past 10 years, STMPA.PA has outperformed ON with an annualized return of 31.57%, while ON has yielded a comparatively lower 27.75% annualized return.

STMPA.PA

• 1D: 4.47%
• 1M: 29.44%
• YTD: 202.79%
• 6M: 204.78%
• 1Y: 165.53%
• 3Y*: 15.25%
• 5Y*: 17.64%
• 10Y*: 31.57%

ON

• 1D: 0.80%
• 1M: 2.21%
• YTD: 119.00%
• 6M: 115.64%
• 1Y: 120.82%
• 3Y*: 5.53%
• 5Y*: 26.47%
• 10Y*: 27.75%

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

STMPA.PA vs. ON - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
STMPA.PA STMicroelectronics N.V.	202.79%	-6.35%	-45.77%	37.84%	-23.43%	44.13%	27.36%	94.64%	-30.38%	71.44%
ON ON Semiconductor Corporation	119.00%	-24.31%	-19.54%	29.91%	-2.48%	123.04%	23.18%	51.00%	-17.45%	43.94%

Correlation

The correlation between STMPA.PA and ON is 0.57, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.57
Correlation (3Y) Calculated over the trailing 3-year period	0.51
Correlation (5Y) Calculated over the trailing 5-year period	0.52
Correlation (10Y) Calculated over the trailing 10-year period	0.51
Correlation (All Time) Calculated using the full available price history since Sep 5, 2007	0.44

The correlation between STMPA.PA and ON shifts across timeframes, from 0.44 (all time) to 0.57 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

STMPA.PA vs. ON — Risk / Return Rank

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

STMPA.PA

STMPA.PA Risk / Return Rank: 93
STMPA.PA Sharpe Ratio Rank: 96
STMPA.PA Sortino Ratio Rank: 93
STMPA.PA Omega Ratio Rank: 94
STMPA.PA Calmar Ratio Rank: 92
STMPA.PA Martin Ratio Rank: 89

ON

ON Risk / Return Rank: 88
ON Sharpe Ratio Rank: 92
ON Sortino Ratio Rank: 88
ON Omega Ratio Rank: 87
ON Calmar Ratio Rank: 91
ON Martin Ratio Rank: 86

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.

STMPA.PA vs. ON - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for STMicroelectronics N.V. (STMPA.PA) and ON Semiconductor Corporation (ON). 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.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	STMPA.PA	ON	Difference
Sharpe ratio: Return per unit of total volatility	3.24	2.27	+0.97
Sortino ratio: Return per unit of downside risk	3.47	2.80	+0.67
Omega ratio: Gain probability vs. loss probability	1.51	1.36	+0.15
Calmar ratio: Return relative to maximum drawdown	4.84	4.55	+0.29
Martin ratio: Return relative to average drawdown	10.54	9.09	+1.45

STMPA.PA vs. ON - Sharpe Ratio Comparison

The current STMPA.PA Sharpe Ratio is 3.24, which is higher than the ON Sharpe Ratio of 2.27. The chart below compares the historical Sharpe Ratios of STMPA.PA and ON, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

STMPA.PA vs. ON - Drawdown Comparison

The maximum STMPA.PA drawdown since its inception was -78.44%, roughly equal to the maximum ON drawdown of -77.57%. Use the drawdown chart below to compare losses from any high point for STMPA.PA and ON.

Drawdown Indicators

	STMPA.PA	ON	Difference
Max Drawdown Largest peak-to-trough decline	-78.44%	-77.57%	-0.87%
Max Drawdown (1Y) Largest decline over 1 year	-33.57%	-26.72%	-6.85%
Max Drawdown (3Y) Largest decline over 3 years	-66.39%	-70.27%	+3.88%
Max Drawdown (5Y) Largest decline over 5 years	-66.39%	-70.27%	+3.88%
Max Drawdown (10Y) Largest decline over 10 years	-66.39%	-70.27%	+3.88%
Current Drawdown Current decline from peak	-1.08%	-12.58%	+11.50%
Average Drawdown Average peak-to-trough decline	-32.55%	-26.86%	-5.69%
Ulcer Index Depth and duration of drawdowns from previous peaks	15.50%	13.34%	+2.16%

Volatility

STMPA.PA vs. ON - Volatility Comparison

STMicroelectronics N.V. (STMPA.PA) and ON Semiconductor Corporation (ON) have volatilities of 21.37% and 21.44%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	STMPA.PA	ON	Difference
Volatility (1M) Calculated over the trailing 1-month period	21.37%	21.44%	-0.07%
Volatility (6M) Calculated over the trailing 6-month period	37.89%	39.58%	-1.69%
Volatility (1Y) Calculated over the trailing 1-year period	50.20%	53.47%	-3.27%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	40.00%	52.54%	-12.54%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.27%	50.94%	-10.67%

Dividends

STMPA.PA vs. ON - Dividend Comparison

STMPA.PA's dividend yield for the trailing twelve months is around 0.45%, while ON has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ON ON Semiconductor Corporation	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
STMPA.PA STMicroelectronics N.V.	0.45%	1.36%	1.28%	0.49%	0.71%	0.51%	0.61%	1.00%	1.92%	1.30%	2.60%	6.47%

Financials

Frequently Asked Questions

Can I hold both STMPA.PA and ON in my portfolio?

STMPA.PA and ON have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.