DIOD vs. MPWR

Last updated Jun 23, 2026

DIOD (Diodes Incorporated) and MPWR (Monolithic Power Systems, Inc.) are both stocks. Both operate in the Semiconductors industry within the Technology sector. Over the past 10 years, DIOD returned 21.04%/yr vs 38.11%/yr for MPWR. A 0.58 correlation means they provide meaningful diversification when combined.

Performance

DIOD vs. MPWR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Diodes Incorporated (DIOD) and Monolithic Power Systems, Inc. (MPWR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DIOD achieves a 148.80% return, which is significantly higher than MPWR's 70.02% return. Over the past 10 years, DIOD has underperformed MPWR with an annualized return of 21.04%, while MPWR has yielded a comparatively higher 38.11% annualized return.

DIOD

• 1D: 2.76%
• 1M: 23.19%
• YTD: 148.80%
• 6M: 142.75%
• 1Y: 140.71%
• 3Y*: 12.76%
• 5Y*: 9.96%
• 10Y*: 21.04%

MPWR

• 1D: -1.65%
• 1M: -3.27%
• YTD: 70.02%
• 6M: 63.31%
• 1Y: 125.92%
• 3Y*: 45.96%
• 5Y*: 35.43%
• 10Y*: 38.11%

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

DIOD vs. MPWR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DIOD Diodes Incorporated	148.80%	-19.99%	-23.41%	5.75%	-30.66%	55.76%	25.07%	74.74%	12.52%	11.69%
MPWR Monolithic Power Systems, Inc.	70.02%	54.45%	-5.55%	79.78%	-27.78%	35.49%	107.49%	54.80%	4.49%	38.23%

Correlation

The correlation between DIOD and MPWR is 0.69, 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	0.69
Correlation (3Y) Calculated over the trailing 3-year period	0.65
Correlation (5Y) Calculated over the trailing 5-year period	0.72
Correlation (10Y) Calculated over the trailing 10-year period	0.70
Correlation (All Time) Calculated using the full available price history since Nov 19, 2004	0.58

The correlation between DIOD and MPWR shifts across timeframes, from 0.58 (all time) to 0.72 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap DIOD : $5.66B MPWR : $75.73B
EPS DIOD : $1.85 MPWR : $13.89
PE Ratio DIOD : 66.48 MPWR : 110.70
PS Ratio DIOD : 3.66 MPWR : 25.28
PB Ratio DIOD : 2.90 MPWR : 20.59
Total Revenue (TTM) DIOD : $1.56B MPWR : $2.96B
Gross Profit (TTM) DIOD : $486.53M MPWR : $1.63B
EBITDA (TTM) DIOD : $216.64M MPWR : $861.78M

Return for Risk

DIOD vs. MPWR — Risk / Return Rank

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

DIOD

DIOD Risk / Return Rank: 91
DIOD Sharpe Ratio Rank: 92
DIOD Sortino Ratio Rank: 90
DIOD Omega Ratio Rank: 89
DIOD Calmar Ratio Rank: 92
DIOD Martin Ratio Rank: 92

MPWR

MPWR Risk / Return Rank: 91
MPWR Sharpe Ratio Rank: 93
MPWR Sortino Ratio Rank: 89
MPWR Omega Ratio Rank: 88
MPWR Calmar Ratio Rank: 93
MPWR Martin Ratio Rank: 93

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.

DIOD vs. MPWR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Diodes Incorporated (DIOD) and Monolithic Power Systems, Inc. (MPWR). 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.

	DIOD	MPWR	Difference
Sharpe ratio: Return per unit of total volatility	2.43	2.55	-0.12
Sortino ratio: Return per unit of downside risk	3.10	3.00	+0.10
Omega ratio: Gain probability vs. loss probability	1.40	1.38	+0.02
Calmar ratio: Return relative to maximum drawdown	5.16	5.64	-0.48
Martin ratio: Return relative to average drawdown	13.10	14.83	-1.73

DIOD vs. MPWR - Sharpe Ratio Comparison

The current DIOD Sharpe Ratio is 2.43, which is comparable to the MPWR Sharpe Ratio of 2.55. The chart below compares the historical Sharpe Ratios of DIOD and MPWR, 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

DIOD vs. MPWR - Drawdown Comparison

The maximum DIOD drawdown since its inception was -90.09%, which is greater than MPWR's maximum drawdown of -72.27%. Use the drawdown chart below to compare losses from any high point for DIOD and MPWR.

Drawdown Indicators

	DIOD	MPWR	Difference
Max Drawdown Largest peak-to-trough decline	-90.09%	-72.27%	-17.82%
Max Drawdown (1Y) Largest decline over 1 year	-27.44%	-22.45%	-4.99%
Max Drawdown (3Y) Largest decline over 3 years	-64.19%	-51.65%	-12.54%
Max Drawdown (5Y) Largest decline over 5 years	-69.52%	-51.65%	-17.87%
Max Drawdown (10Y) Largest decline over 10 years	-69.52%	-51.65%	-17.87%
Current Drawdown Current decline from peak	0.00%	-9.00%	+9.00%
Average Drawdown Average peak-to-trough decline	-33.30%	-17.70%	-15.60%
Ulcer Index Depth and duration of drawdowns from previous peaks	10.78%	8.52%	+2.26%

Volatility

DIOD vs. MPWR - Volatility Comparison

Diodes Incorporated (DIOD) and Monolithic Power Systems, Inc. (MPWR) have volatilities of 23.49% and 23.19%, 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

	DIOD	MPWR	Difference
Volatility (1M) Calculated over the trailing 1-month period	23.49%	23.19%	+0.30%
Volatility (6M) Calculated over the trailing 6-month period	45.88%	39.46%	+6.42%
Volatility (1Y) Calculated over the trailing 1-year period	58.36%	49.78%	+8.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	47.09%	53.89%	-6.80%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	43.60%	47.45%	-3.85%

Dividends

DIOD vs. MPWR - Dividend Comparison

DIOD has not paid dividends to shareholders, while MPWR's dividend yield for the trailing twelve months is around 0.43%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DIOD Diodes Incorporated	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
MPWR Monolithic Power Systems, Inc.	0.43%	0.69%	0.85%	0.63%	0.85%	0.49%	0.55%	0.90%	1.03%	0.71%	0.98%	1.26%

Financials

DIOD vs. MPWR - Profitability Comparison

The chart below illustrates the profitability comparison between Diodes Incorporated and Monolithic Power Systems, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

DIOD - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Diodes Incorporated reported a gross profit of 128.79M and revenue of 405.47M. Therefore, the gross margin over that period was 31.8%.

MPWR - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Monolithic Power Systems, Inc. reported a gross profit of 445.07M and revenue of 804.19M. Therefore, the gross margin over that period was 55.3%.

DIOD - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Diodes Incorporated reported an operating income of 19.77M and revenue of 405.47M, resulting in an operating margin of 4.9%.

MPWR - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Monolithic Power Systems, Inc. reported an operating income of 241.15M and revenue of 804.19M, resulting in an operating margin of 30.0%.

DIOD - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Diodes Incorporated reported a net income of 14.96M and revenue of 405.47M, resulting in a net margin of 3.7%.

MPWR - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Monolithic Power Systems, Inc. reported a net income of 193.23M and revenue of 804.19M, resulting in a net margin of 24.0%.

Frequently Asked Questions

Can I hold both DIOD and MPWR in my portfolio?

DIOD and MPWR have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DIOD or MPWR?

DIOD has higher volatility (23.49%) compared to MPWR (23.19%). In terms of maximum drawdown, DIOD dropped -90.09% vs MPWR's -72.27%.

Which has better risk-adjusted returns?

MPWR currently has the higher Sharpe Ratio (2.55 vs 2.43), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.