POWI vs. SLAB

Last updated Apr 1, 2026

Compare and contrast key facts about Power Integrations, Inc. (POWI) and Silicon Laboratories Inc. (SLAB).

Performance

POWI vs. SLAB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Power Integrations, Inc. (POWI) and Silicon Laboratories Inc. (SLAB). The values are adjusted to include any dividend payments, if applicable.

POWI vs. SLAB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
POWI Power Integrations, Inc.	44.71%	-41.33%	-23.97%	15.56%	-22.09%	14.12%	66.77%	63.64%	-16.32%	9.26%
SLAB Silicon Laboratories Inc.	59.26%	5.22%	-6.09%	-2.51%	-34.27%	62.10%	9.79%	47.16%	-10.75%	35.85%

Fundamentals

Market Cap POWI : $2.85B SLAB : $6.85B
EPS POWI : $0.39 SLAB : -$1.98
PS Ratio POWI : 6.46 SLAB : 8.68
PB Ratio POWI : 4.24 SLAB : 6.26
Total Revenue (TTM) POWI : $443.50M SLAB : $784.76M
Gross Profit (TTM) POWI : $241.65M SLAB : $456.98M
EBITDA (TTM) POWI : $34.16M SLAB : -$30.25M

Returns By Period

In the year-to-date period, POWI achieves a 44.71% return, which is significantly lower than SLAB's 59.26% return. Over the past 10 years, POWI has underperformed SLAB with an annualized return of 8.51%, while SLAB has yielded a comparatively higher 16.31% annualized return.

POWI

• 1D: 6.93%
• 1M: 6.84%
• YTD: 44.71%
• 6M: 28.70%
• 1Y: 3.37%
• 3Y*: -14.24%
• 5Y*: -8.69%
• 10Y*: 8.51%

SLAB

• 1D: 1.12%
• 1M: 1.77%
• YTD: 59.26%
• 6M: 58.74%
• 1Y: 84.91%
• 3Y*: 5.93%
• 5Y*: 7.07%
• 10Y*: 16.31%

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

Return for Risk

POWI vs. SLAB — Risk / Return Rank

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

POWI

POWI Risk / Return Rank: 43
POWI Sharpe Ratio Rank: 43
POWI Sortino Ratio Rank: 43
POWI Omega Ratio Rank: 42
POWI Calmar Ratio Rank: 42
POWI Martin Ratio Rank: 42

SLAB

SLAB Risk / Return Rank: 86
SLAB Sharpe Ratio Rank: 81
SLAB Sortino Ratio Rank: 88
SLAB Omega Ratio Rank: 89
SLAB Calmar Ratio Rank: 87
SLAB Martin Ratio Rank: 84

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.

POWI vs. SLAB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Power Integrations, Inc. (POWI) and Silicon Laboratories Inc. (SLAB). 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.

	POWI	SLAB	Difference
Sharpe ratio Return per unit of total volatility	0.06	1.28	-1.22
Sortino ratio Return per unit of downside risk	0.53	2.61	-2.08
Omega ratio Gain probability vs. loss probability	1.06	1.37	-0.31
Calmar ratio Return relative to maximum drawdown	0.05	3.21	-3.16
Martin ratio Return relative to average drawdown	0.10	7.39	-7.29
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

POWI vs. SLAB - Sharpe Ratio Comparison

The current POWI Sharpe Ratio is 0.06, which is lower than the SLAB Sharpe Ratio of 1.28. The chart below compares the historical Sharpe Ratios of POWI and SLAB, 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

	POWI	SLAB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.06	1.28	-1.22
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.20	0.14	-0.35
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.21	0.36	-0.15
Sharpe Ratio (All Time) Calculated using the full available price history	0.23	0.08	+0.15

Correlation

The correlation between POWI and SLAB is 0.58, 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

POWI vs. SLAB - Dividend Comparison

POWI's dividend yield for the trailing twelve months is around 1.65%, while SLAB has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
POWI Power Integrations, Inc.	1.65%	2.36%	1.31%	0.94%	1.00%	0.58%	0.51%	0.71%	1.05%	0.76%	0.77%	0.99%
SLAB Silicon Laboratories 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%

Drawdowns

POWI vs. SLAB - Drawdown Comparison

The maximum POWI drawdown since its inception was -85.76%, roughly equal to the maximum SLAB drawdown of -89.29%. Use the drawdown chart below to compare losses from any high point for POWI and SLAB.

Drawdown Indicators

	POWI	SLAB	Difference
Max Drawdown Largest peak-to-trough decline	-85.76%	-89.29%	+3.53%
Max Drawdown (1Y) Largest decline over 1 year	-47.83%	-26.18%	-21.65%
Max Drawdown (5Y) Largest decline over 5 years	-70.68%	-58.99%	-11.69%
Max Drawdown (10Y) Largest decline over 10 years	-70.68%	-58.99%	-11.69%
Current Drawdown Current decline from peak	-50.92%	-0.93%	-49.99%
Average Drawdown Average peak-to-trough decline	-38.68%	-47.35%	+8.67%
Ulcer Index Depth and duration of drawdowns from previous peaks	24.35%	11.39%	+12.96%

Volatility

POWI vs. SLAB - Volatility Comparison

Power Integrations, Inc. (POWI) has a higher volatility of 15.66% compared to Silicon Laboratories Inc. (SLAB) at 2.09%. This indicates that POWI's price experiences larger fluctuations and is considered to be riskier than SLAB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	POWI	SLAB	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.66%	2.09%	+13.57%
Volatility (6M) Calculated over the trailing 6-month period	39.92%	46.56%	-6.64%
Volatility (1Y) Calculated over the trailing 1-year period	54.88%	66.65%	-11.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	42.68%	49.33%	-6.65%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	40.62%	45.35%	-4.73%

Financials

POWI vs. SLAB - Profitability Comparison

The chart below illustrates the profitability comparison between Power Integrations, Inc. and Silicon Laboratories Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

POWI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Power Integrations, Inc. reported a gross profit of 54.61M and revenue of 103.20M. Therefore, the gross margin over that period was 52.9%.

SLAB - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Silicon Laboratories Inc. reported a gross profit of 132.08M and revenue of 208.21M. Therefore, the gross margin over that period was 63.4%.

POWI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Power Integrations, Inc. reported an operating income of -5.51M and revenue of 103.20M, resulting in an operating margin of -5.3%.

SLAB - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Silicon Laboratories Inc. reported an operating income of -3.25M and revenue of 208.21M, resulting in an operating margin of -1.6%.

POWI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Power Integrations, Inc. reported a net income of 13.29M and revenue of 103.20M, resulting in a net margin of 12.9%.

SLAB - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Silicon Laboratories Inc. reported a net income of -2.68M and revenue of 208.21M, resulting in a net margin of -1.3%.