POWI vs. SIGI
POWI (Power Integrations, Inc.) and SIGI (Selective Insurance Group, Inc.) are both stocks. POWI operates in Semiconductors (Technology), while SIGI operates in Insurance - Property & Casualty (Financial Services). Over the past 10 years, POWI returned 14.38%/yr vs 11.26%/yr for SIGI. At a 0.29 correlation, their price movements are largely independent.
Performance
POWI vs. SIGI - Performance Comparison
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Returns By Period
In the year-to-date period, POWI achieves a 147.49% return, which is significantly higher than SIGI's 11.58% return. Over the past 10 years, POWI has outperformed SIGI with an annualized return of 14.38%, while SIGI has yielded a comparatively lower 11.26% annualized return.
POWI
- 1D
- 0.28%
- 1M
- 23.59%
- YTD
- 147.49%
- 6M
- 137.53%
- 1Y
- 66.22%
- 3Y*
- 1.60%
- 5Y*
- 3.18%
- 10Y*
- 14.38%
SIGI
- 1D
- 0.14%
- 1M
- 1.92%
- YTD
- 11.58%
- 6M
- 9.04%
- 1Y
- 10.82%
- 3Y*
- 0.35%
- 5Y*
- 5.08%
- 10Y*
- 11.26%
POWI vs. SIGI - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
POWI Power Integrations, Inc. | 147.49% | -41.33% | -23.97% | 15.56% | -22.09% | 14.12% | 66.77% | 63.64% | -16.32% | 9.26% |
SIGI Selective Insurance Group, Inc. | 11.58% | -8.79% | -4.58% | 13.66% | 9.67% | 24.02% | 4.48% | 8.24% | 5.11% | 38.15% |
Correlation
The correlation between POWI and SIGI is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.08 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.09 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.17 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.26 |
Correlation (All Time) Calculated using the full available price history since Dec 12, 1997 | 0.29 |
Over the past year, the correlation between POWI and SIGI has dropped to 0.08 - well below their long-term average of 0.29, suggesting their price drivers have been diverging.
Fundamentals
POWI:
$4.88B
SIGI:
$5.59B
POWI:
$0.30
SIGI:
$7.46
POWI:
294.29
SIGI:
12.39
POWI:
10.95
SIGI:
1.04
POWI:
7.26
SIGI:
1.65
POWI:
$446.28M
SIGI:
$5.41B
POWI:
$240.35M
SIGI:
$1.66B
POWI:
$30.43M
SIGI:
$801.50M
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Return for Risk
POWI vs. SIGI — Risk / Return Rank
POWI
SIGI
POWI vs. SIGI - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Power Integrations, Inc. (POWI) and Selective Insurance Group, Inc. (SIGI). 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.
| POWI | SIGI | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.79 | ||
| Sortino ratioReturn per unit of downside risk | +1.33 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.10 | +0.15 |
| Calmar ratioReturn relative to maximum drawdown | 1.39 | 0.60 | +0.79 |
| Martin ratioReturn relative to average drawdown | 2.75 | 1.06 | +1.69 |
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Drawdowns
POWI vs. SIGI - Drawdown Comparison
The maximum POWI drawdown since its inception was -85.76%, which is greater than SIGI's maximum drawdown of -63.06%. Use the drawdown chart below to compare losses from any high point for POWI and SIGI.
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Drawdown Indicators
| POWI | SIGI | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -85.76% | -63.06% | -22.70% |
Max Drawdown (1Y)Largest decline over 1 year | -47.83% | -18.18% | -29.65% |
Max Drawdown (3Y)Largest decline over 3 years | -67.82% | -30.46% | -37.36% |
Max Drawdown (5Y)Largest decline over 5 years | -70.68% | -30.46% | -40.22% |
Max Drawdown (10Y)Largest decline over 10 years | -70.68% | -48.39% | -22.29% |
Current DrawdownCurrent decline from peak | -16.06% | -11.81% | -4.25% |
Average DrawdownAverage peak-to-trough decline | -38.63% | -14.06% | -24.57% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 24.19% | 10.26% | +13.93% |
Volatility
POWI vs. SIGI - Volatility Comparison
Power Integrations, Inc. (POWI) has a higher volatility of 24.22% compared to Selective Insurance Group, Inc. (SIGI) at 5.49%. This indicates that POWI's price experiences larger fluctuations and is considered to be riskier than SIGI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| POWI | SIGI | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 24.22% | 5.49% | +18.73% |
Volatility (6M)Calculated over the trailing 6-month period | 39.96% | 17.82% | +22.14% |
Volatility (1Y)Calculated over the trailing 1-year period | 57.67% | 30.12% | +27.55% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 44.71% | 27.40% | +17.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 41.80% | 28.85% | +12.95% |
Dividends
POWI vs. SIGI - Dividend Comparison
POWI's dividend yield for the trailing twelve months is around 0.97%, less than SIGI's 1.81% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
POWI Power Integrations, Inc. | 0.97% | 2.36% | 1.31% | 0.94% | 1.00% | 0.58% | 0.51% | 0.71% | 1.05% | 0.76% | 0.77% | 0.99% |
SIGI Selective Insurance Group, Inc. | 1.81% | 1.88% | 1.53% | 1.26% | 1.29% | 1.26% | 1.40% | 1.27% | 1.21% | 1.12% | 1.42% | 1.70% |
Financials
POWI vs. SIGI - Financials Comparison
This section allows you to compare key financial metrics between Power Integrations, Inc. and Selective Insurance Group, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
POWI vs. SIGI - Profitability Comparison
POWI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Power Integrations, Inc. reported a gross profit of 56.94M and revenue of 108.31M. Therefore, the gross margin over that period was 52.6%.
SIGI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Selective Insurance Group, Inc. reported a gross profit of 0.00 and revenue of 1.36B. Therefore, the gross margin over that period was 0.0%.
POWI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Power Integrations, Inc. reported an operating income of 1.45M and revenue of 108.31M, resulting in an operating margin of 1.3%.
SIGI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Selective Insurance Group, Inc. reported an operating income of 101.90M and revenue of 1.36B, resulting in an operating margin of 7.5%.
POWI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Power Integrations, Inc. reported a net income of 3.30M and revenue of 108.31M, resulting in a net margin of 3.1%.
SIGI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Selective Insurance Group, Inc. reported a net income of 97.70M and revenue of 1.36B, resulting in a net margin of 7.2%.
Frequently Asked Questions
POWI and SIGI have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
POWI has higher volatility (24.22%) compared to SIGI (5.49%). In terms of maximum drawdown, POWI dropped -85.76% vs SIGI's -63.06%.
POWI currently has the higher Sharpe Ratio (1.16 vs 0.36), 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.
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