SWPPX vs. VOO

Last updated Jun 13, 2026

SWPPX (Schwab S&P 500 Index Fund) and VOO (Vanguard S&P 500 ETF) are both funds - SWPPX is a Large Cap Blend Equities fund tracking the S&P 500 Index, while VOO is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, SWPPX returned 15.41%/yr vs 15.50%/yr for VOO. With a 0.99 correlation, they move nearly in lockstep. SWPPX charges 0.02%/yr vs 0.03%/yr for VOO.

Performance

SWPPX vs. VOO - Performance Comparison

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

Returns By Period

In the year-to-date period, SWPPX achieves a 8.55% return, which is significantly lower than VOO's 9.08% return. Both investments have delivered pretty close results over the past 10 years, with SWPPX having a 15.41% annualized return and VOO not far ahead at 15.50%.

SWPPX

• 1D: 1.76%
• 1M: -0.57%
• YTD: 8.55%
• 6M: 8.92%
• 1Y: 23.75%
• 3Y*: 21.04%
• 5Y*: 13.31%
• 10Y*: 15.41%

VOO

• 1D: 0.55%
• 1M: -0.07%
• YTD: 9.08%
• 6M: 9.44%
• 1Y: 24.36%
• 3Y*: 20.95%
• 5Y*: 13.43%
• 10Y*: 15.50%

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

SWPPX vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SWPPX Schwab S&P 500 Index Fund	8.55%	17.87%	24.96%	26.26%	-18.14%	28.67%	18.38%	31.46%	-4.47%	21.81%
VOO Vanguard S&P 500 ETF	9.08%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between SWPPX and VOO is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	1.00
Correlation (3Y) Calculated over the trailing 3-year period	0.99
Correlation (5Y) Calculated over the trailing 5-year period	1.00
Correlation (10Y) Calculated over the trailing 10-year period	0.99
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	0.99

The correlation between SWPPX and VOO has been stable across timeframes, ranging from 0.99 to 1.00 - a consistent structural relationship.

SWPPX vs. VOO - Sectors Allocation Comparison

Sectors	SWPPX	VOO
Technology	35.6%	35.7%
Financial Services	11.8%	11.6%
Communication Services	11.2%	11.3%
Consumer Cyclical	10.1%	10.2%
Healthcare	8.5%	8.5%
Industrials	8.3%	8.3%
Consumer Defensive	4.9%	4.9%
Energy	3.5%	3.5%
Utilities	2.4%	2.4%
Real Estate	1.9%	1.9%
Basic Materials	1.8%	1.8%

Return for Risk

SWPPX vs. VOO — Risk / Return Rank

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

SWPPX

SWPPX Risk / Return Rank: 73
SWPPX Sharpe Ratio Rank: 72
SWPPX Sortino Ratio Rank: 67
SWPPX Omega Ratio Rank: 68
SWPPX Calmar Ratio Rank: 73
SWPPX Martin Ratio Rank: 83

VOO

VOO Risk / Return Rank: 70
VOO Sharpe Ratio Rank: 71
VOO Sortino Ratio Rank: 69
VOO Omega Ratio Rank: 71
VOO Calmar Ratio Rank: 63
VOO Martin Ratio Rank: 76

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.

SWPPX vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Schwab S&P 500 Index Fund (SWPPX) and Vanguard S&P 500 ETF (VOO). 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.

	SWPPX	VOO	Difference
Sharpe ratio: Return per unit of total volatility	1.96	1.99	-0.03
Sortino ratio: Return per unit of downside risk	2.66	2.70	-0.04
Omega ratio: Gain probability vs. loss probability	1.36	1.36	-0.01
Calmar ratio: Return relative to maximum drawdown	2.74	2.75	-0.01
Martin ratio: Return relative to average drawdown	12.42	12.42	-0.01

SWPPX vs. VOO - Sharpe Ratio Comparison

The current SWPPX Sharpe Ratio is 1.96, which is comparable to the VOO Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of SWPPX and VOO, 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

SWPPX vs. VOO - Drawdown Comparison

The maximum SWPPX drawdown since its inception was -55.06%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for SWPPX and VOO.

Drawdown Indicators

	SWPPX	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-55.06%	-33.99%	-21.07%
Max Drawdown (1Y) Largest decline over 1 year	-8.89%	-8.90%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-18.74%	-18.69%	-0.05%
Max Drawdown (5Y) Largest decline over 5 years	-24.51%	-24.52%	+0.01%
Max Drawdown (10Y) Largest decline over 10 years	-33.80%	-33.99%	+0.19%
Current Drawdown Current decline from peak	-2.81%	-2.34%	-0.47%
Average Drawdown Average peak-to-trough decline	-9.94%	-3.68%	-6.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.96%	1.97%	-0.01%

Volatility

SWPPX vs. VOO - Volatility Comparison

Schwab S&P 500 Index Fund (SWPPX) and Vanguard S&P 500 ETF (VOO) have volatilities of 4.47% and 4.34%, 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

	SWPPX	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.47%	4.34%	+0.13%
Volatility (6M) Calculated over the trailing 6-month period	9.73%	9.58%	+0.15%
Volatility (1Y) Calculated over the trailing 1-year period	12.40%	12.27%	+0.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.01%	16.88%	+0.13%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.26%	18.03%	+0.23%

SWPPX vs. VOO - Expense Ratio Comparison

SWPPX has a 0.02% expense ratio, which is lower than VOO's 0.03% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

SWPPX vs. VOO - Dividend Comparison

SWPPX's dividend yield for the trailing twelve months is around 1.02%, less than VOO's 1.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SWPPX Schwab S&P 500 Index Fund	1.02%	1.11%	1.23%	1.43%	1.67%	1.27%	1.81%	1.95%	2.67%	1.79%	2.55%	3.17%
VOO Vanguard S&P 500 ETF	1.05%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both SWPPX and VOO in my portfolio?

With a correlation of 1.00, SWPPX and VOO move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, SWPPX or VOO?

SWPPX has higher volatility (4.47%) compared to VOO (4.34%). In terms of maximum drawdown, SWPPX dropped -55.06% vs VOO's -33.99%.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.99 vs 1.96), 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.