SWX vs. SWPPX

Last updated Jun 4, 2026

SWX (Southwest Gas Holdings, Inc.) is a stock, while SWPPX (Schwab S&P 500 Index Fund) is Large Cap Blend Equities fund tracking the S&P 500 Index. Over the past 10 years, SWX returned 5.03%/yr vs 15.63%/yr for SWPPX. At a 0.45 correlation, their price movements are largely independent.

Performance

SWX vs. SWPPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Southwest Gas Holdings, Inc. (SWX) and Schwab S&P 500 Index Fund (SWPPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SWX achieves a 8.68% return, which is significantly lower than SWPPX's 11.69% return. Over the past 10 years, SWX has underperformed SWPPX with an annualized return of 5.03%, while SWPPX has yielded a comparatively higher 15.63% annualized return.

SWX

• 1D: -0.36%
• 1M: -7.22%
• YTD: 8.68%
• 6M: 8.84%
• 1Y: 19.87%
• 3Y*: 16.64%
• 5Y*: 8.93%
• 10Y*: 5.03%

SWPPX

• 1D: 0.15%
• 1M: 5.83%
• YTD: 11.69%
• 6M: 11.71%
• 1Y: 28.97%
• 3Y*: 22.73%
• 5Y*: 14.26%
• 10Y*: 15.63%

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

SWX vs. SWPPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SWX Southwest Gas Holdings, Inc.	8.68%	16.92%	15.68%	6.61%	-8.67%	19.34%	-17.50%	1.97%	-2.32%	7.58%
SWPPX Schwab S&P 500 Index Fund	11.69%	17.87%	24.96%	26.26%	-18.14%	28.67%	18.38%	31.46%	-4.47%	21.81%

Correlation

The correlation between SWX and SWPPX is 0.05, 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	0.05
Correlation (3Y) Calculated over the trailing 3-year period	0.22
Correlation (5Y) Calculated over the trailing 5-year period	0.28
Correlation (10Y) Calculated over the trailing 10-year period	0.30
Correlation (All Time) Calculated using the full available price history since May 21, 1997	0.45

Over the past year, the correlation between SWX and SWPPX has dropped to 0.05 - well below their long-term average of 0.45, suggesting their price drivers have been diverging.

Return for Risk

SWX vs. SWPPX — Risk / Return Rank

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

SWX

SWX Risk / Return Rank: 73
SWX Sharpe Ratio Rank: 74
SWX Sortino Ratio Rank: 67
SWX Omega Ratio Rank: 65
SWX Calmar Ratio Rank: 75
SWX Martin Ratio Rank: 82

SWPPX

SWPPX Risk / Return Rank: 73
SWPPX Sharpe Ratio Rank: 75
SWPPX Sortino Ratio Rank: 67
SWPPX Omega Ratio Rank: 67
SWPPX Calmar Ratio Rank: 74
SWPPX Martin Ratio Rank: 83

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.

SWX vs. SWPPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Southwest Gas Holdings, Inc. (SWX) and Schwab S&P 500 Index Fund (SWPPX). 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.

	SWX	SWPPX	Difference
Sharpe ratio Return per unit of total volatility	1.11	2.52	-1.41
Sortino ratio Return per unit of downside risk	1.62	3.41	-1.79
Omega ratio Gain probability vs. loss probability	1.20	1.46	-0.26
Calmar ratio Return relative to maximum drawdown	2.10	3.36	-1.26
Martin ratio Return relative to average drawdown	7.32	15.67	-8.36
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SWX vs. SWPPX - Sharpe Ratio Comparison

The current SWX Sharpe Ratio is 1.11, which is lower than the SWPPX Sharpe Ratio of 2.52. The chart below compares the historical Sharpe Ratios of SWX and SWPPX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SWX	SWPPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.11	2.52	-1.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.35	0.85	-0.49
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.18	0.86	-0.68
Sharpe Ratio (All Time) Calculated using the full available price history	0.32	0.51	-0.19

Drawdowns

SWX vs. SWPPX - Drawdown Comparison

The maximum SWX drawdown since its inception was -53.62%, roughly equal to the maximum SWPPX drawdown of -55.06%. Use the drawdown chart below to compare losses from any high point for SWX and SWPPX.

Drawdown Indicators

	SWX	SWPPX	Difference
Max Drawdown Largest peak-to-trough decline	-53.62%	-55.06%	+1.44%
Max Drawdown (1Y) Largest decline over 1 year	-9.51%	-8.89%	-0.62%
Max Drawdown (3Y) Largest decline over 3 years	-14.79%	-18.74%	+3.95%
Max Drawdown (5Y) Largest decline over 5 years	-41.05%	-24.51%	-16.54%
Max Drawdown (10Y) Largest decline over 10 years	-42.47%	-33.80%	-8.67%
Current Drawdown Current decline from peak	-8.18%	0.00%	-8.18%
Average Drawdown Average peak-to-trough decline	-12.56%	-9.95%	-2.61%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.76%	1.90%	+0.86%

Volatility

SWX vs. SWPPX - Volatility Comparison

Southwest Gas Holdings, Inc. (SWX) has a higher volatility of 5.81% compared to Schwab S&P 500 Index Fund (SWPPX) at 2.83%. This indicates that SWX's price experiences larger fluctuations and is considered to be riskier than SWPPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SWX	SWPPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.81%	2.83%	+2.98%
Volatility (6M) Calculated over the trailing 6-month period	12.94%	8.98%	+3.96%
Volatility (1Y) Calculated over the trailing 1-year period	18.25%	11.87%	+6.38%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.35%	16.93%	+8.42%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.31%	18.23%	+9.08%

Dividends

SWX vs. SWPPX - Dividend Comparison

SWX's dividend yield for the trailing twelve months is around 2.92%, more than SWPPX's 0.99% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SWPPX Schwab S&P 500 Index Fund	0.99%	1.11%	1.23%	1.43%	1.67%	1.27%	1.81%	1.95%	2.67%	1.79%	2.55%	3.17%
SWX Southwest Gas Holdings, Inc.	2.92%	3.10%	3.51%	3.91%	3.97%	3.36%	3.71%	2.84%	2.69%	2.40%	2.29%	2.86%

Frequently Asked Questions

Can I hold both SWX and SWPPX in my portfolio?

SWX and SWPPX have a correlation of 0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SWX or SWPPX?

SWX has higher volatility (5.81%) compared to SWPPX (2.83%). In terms of maximum drawdown, SWX dropped -53.62% vs SWPPX's -55.06%.

Which has better risk-adjusted returns?

SWPPX currently has the higher Sharpe Ratio (2.52 vs 1.11), 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.