RSP vs. VOO

Last updated Apr 10, 2026

RSP (Invesco S&P 500 Equal Weight ETF) and VOO (Vanguard S&P 500 ETF) are both S&P 500 funds — RSP tracks the S&P 500 Equal Weight Index while VOO tracks the S&P 500 Index. Both are passively managed. Over the past 10 years, RSP returned 11.71%/yr vs 14.72%/yr for VOO. Their correlation of 0.92 suggests significant overlap in exposure. RSP charges 0.20%/yr vs 0.03%/yr for VOO.

Performance

RSP vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco S&P 500 Equal Weight ETF (RSP) 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, RSP achieves a 3.85% return, which is significantly higher than VOO's -0.02% return. Over the past 10 years, RSP has underperformed VOO with an annualized return of 11.71%, while VOO has yielded a comparatively higher 14.72% annualized return.

RSP

• 1D: 0.06%
• 1M: 0.87%
• YTD: 3.85%
• 6M: 5.45%
• 1Y: 21.95%
• 3Y*: 13.08%
• 5Y*: 8.18%
• 10Y*: 11.71%

VOO

• 1D: 0.59%
• 1M: 0.69%
• YTD: -0.02%
• 6M: 1.89%
• 1Y: 26.73%
• 3Y*: 20.02%
• 5Y*: 12.16%
• 10Y*: 14.72%

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

RSP vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RSP Invesco S&P 500 Equal Weight ETF	3.85%	11.21%	12.79%	13.70%	-11.62%	29.41%	12.66%	28.91%	-7.84%	18.52%
VOO Vanguard S&P 500 ETF	-0.02%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between RSP and VOO is 0.78, 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	0.78
Correlation (3Y) Calculated over the trailing 3-year period	0.81
Correlation (5Y) Calculated over the trailing 5-year period	0.88
Correlation (All Time) Calculated using the full available price history since Sep 10, 2010	0.92

The correlation between RSP and VOO shifts across timeframes, from 0.78 (1 year) to 0.92 (all time), reflecting how their relationship changes across market environments.

RSP vs. VOO - Expense Ratio Comparison

RSP has a 0.20% expense ratio, which is higher than VOO's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Return for Risk

RSP vs. VOO — Risk / Return Rank

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

RSP

RSP Risk / Return Rank: 45
RSP Sharpe Ratio Rank: 37
RSP Sortino Ratio Rank: 35
RSP Omega Ratio Rank: 34
RSP Calmar Ratio Rank: 60
RSP Martin Ratio Rank: 62

VOO

VOO Risk / Return Rank: 57
VOO Sharpe Ratio Rank: 48
VOO Sortino Ratio Rank: 43
VOO Omega Ratio Rank: 46
VOO Calmar Ratio Rank: 67
VOO Martin Ratio Rank: 79

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.

RSP vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Equal Weight ETF (RSP) 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.

	RSP	VOO	Difference
Sharpe ratio Return per unit of total volatility	1.67	1.96	-0.30
Sortino ratio Return per unit of downside risk	2.38	2.69	-0.31
Omega ratio Gain probability vs. loss probability	1.30	1.37	-0.07
Calmar ratio Return relative to maximum drawdown	3.72	4.10	-0.37
Martin ratio Return relative to average drawdown	13.93	18.30	-4.37
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

RSP vs. VOO - Sharpe Ratio Comparison

The current RSP Sharpe Ratio is 1.67, which is comparable to the VOO Sharpe Ratio of 1.96. The chart below compares the historical Sharpe Ratios of RSP 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.

Sharpe Ratios by Period

	RSP	VOO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.67	1.96	-0.30
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.51	0.73	-0.22
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.64	0.82	-0.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	0.85	-0.29

Drawdowns

RSP vs. VOO - Drawdown Comparison

The maximum RSP drawdown since its inception was -59.92%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for RSP and VOO.

Drawdown Indicators

	RSP	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-59.92%	-33.99%	-25.93%
Max Drawdown (1Y) Largest decline over 1 year	-7.85%	-8.90%	+1.05%
Max Drawdown (5Y) Largest decline over 5 years	-21.38%	-24.52%	+3.14%
Max Drawdown (10Y) Largest decline over 10 years	-39.04%	-33.99%	-5.05%
Current Drawdown Current decline from peak	-2.95%	-1.99%	-0.96%
Average Drawdown Average peak-to-trough decline	-6.69%	-3.72%	-2.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.10%	1.99%	+0.11%

Volatility

RSP vs. VOO - Volatility Comparison

The current volatility for Invesco S&P 500 Equal Weight ETF (RSP) is 4.72%, while Vanguard S&P 500 ETF (VOO) has a volatility of 5.71%. This indicates that RSP experiences smaller price fluctuations and is considered to be less risky than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	RSP	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.72%	5.71%	-0.99%
Volatility (6M) Calculated over the trailing 6-month period	9.12%	9.80%	-0.68%
Volatility (1Y) Calculated over the trailing 1-year period	15.46%	16.53%	-1.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.22%	16.84%	-0.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.36%	18.00%	+0.36%

Dividends

RSP vs. VOO - Dividend Comparison

RSP's dividend yield for the trailing twelve months is around 1.57%, more than VOO's 1.14% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
RSP Invesco S&P 500 Equal Weight ETF	1.57%	1.64%	1.52%	1.64%	1.82%	1.28%	1.64%	1.69%	2.02%	1.52%	1.20%	1.70%
VOO Vanguard S&P 500 ETF	1.14%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%