RSP vs. PRF

Last updated Jun 4, 2026

RSP (Invesco S&P 500 Equal Weight ETF) and PRF (Invesco RAFI US 1000 ETF) are both exchange-traded funds - RSP is a S&P 500 fund tracking the S&P 500 Equal Weight Index, while PRF is a Large Cap Value Equities fund tracking the RAFI Fundamental Select US 1000 Index. Both are passively managed. Over the past 10 years, RSP returned 11.86%/yr vs 13.67%/yr for PRF. With a 0.96 correlation, they move nearly in lockstep. RSP charges 0.20%/yr vs 0.34%/yr for PRF.

Performance

RSP vs. PRF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco S&P 500 Equal Weight ETF (RSP) and Invesco RAFI US 1000 ETF (PRF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, RSP achieves a 9.70% return, which is significantly lower than PRF's 14.79% return. Over the past 10 years, RSP has underperformed PRF with an annualized return of 11.86%, while PRF has yielded a comparatively higher 13.67% annualized return.

RSP

• 1D: -0.38%
• 1M: 3.77%
• YTD: 9.70%
• 6M: 10.18%
• 1Y: 19.50%
• 3Y*: 15.23%
• 5Y*: 8.33%
• 10Y*: 11.86%

PRF

• 1D: -0.20%
• 1M: 4.19%
• YTD: 14.79%
• 6M: 15.01%
• 1Y: 32.80%
• 3Y*: 21.40%
• 5Y*: 12.43%
• 10Y*: 13.67%

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

RSP vs. PRF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
RSP Invesco S&P 500 Equal Weight ETF	9.70%	11.21%	12.79%	13.70%	-11.62%	29.41%	12.66%	28.91%	-7.84%	18.52%
PRF Invesco RAFI US 1000 ETF	14.79%	18.33%	16.73%	15.72%	-7.79%	31.12%	7.78%	27.42%	-8.71%	16.01%

Correlation

The correlation between RSP and PRF is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (10Y) Calculated over the trailing 10-year period	0.97
Correlation (All Time) Calculated using the full available price history since Dec 20, 2005	0.96

The correlation between RSP and PRF has been stable across timeframes, ranging from 0.93 to 0.97 - a consistent structural relationship.

RSP vs. PRF - Sectors Allocation Comparison

Sectors	RSP	PRF
Technology	19.6%	20.9%
Financial Services	14.5%	15.4%
Industrials	14.1%	9.2%
Healthcare	11.0%	11.7%
Consumer Cyclical	9.9%	9.1%
Consumer Defensive	6.5%	6.3%
Utilities	6.1%	3.1%
Real Estate	6.0%	2.5%
Energy	4.5%	8.2%
Basic Materials	4.1%	3.4%
Communication Services	3.7%	10.2%

Return for Risk

RSP vs. PRF — Risk / Return Rank

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

RSP

RSP Risk / Return Rank: 49
RSP Sharpe Ratio Rank: 48
RSP Sortino Ratio Rank: 49
RSP Omega Ratio Rank: 46
RSP Calmar Ratio Rank: 50
RSP Martin Ratio Rank: 54

PRF

PRF Risk / Return Rank: 89
PRF Sharpe Ratio Rank: 89
PRF Sortino Ratio Rank: 90
PRF Omega Ratio Rank: 88
PRF Calmar Ratio Rank: 87
PRF Martin Ratio Rank: 89

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. PRF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco S&P 500 Equal Weight ETF (RSP) and Invesco RAFI US 1000 ETF (PRF). 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	PRF	Difference
Sharpe ratio Return per unit of total volatility	1.70	3.10	-1.40
Sortino ratio Return per unit of downside risk	2.47	4.33	-1.86
Omega ratio Gain probability vs. loss probability	1.30	1.57	-0.27
Calmar ratio Return relative to maximum drawdown	2.49	5.00	-2.50
Martin ratio Return relative to average drawdown	9.48	20.67	-11.19
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. PRF - Sharpe Ratio Comparison

The current RSP Sharpe Ratio is 1.70, which is lower than the PRF Sharpe Ratio of 3.10. The chart below compares the historical Sharpe Ratios of RSP and PRF, 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	PRF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.70	3.10	-1.40
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.52	0.82	-0.31
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.65	0.78	-0.13
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	0.48	+0.09

Drawdowns

RSP vs. PRF - Drawdown Comparison

The maximum RSP drawdown since its inception was -59.92%, roughly equal to the maximum PRF drawdown of -60.35%. Use the drawdown chart below to compare losses from any high point for RSP and PRF.

Drawdown Indicators

	RSP	PRF	Difference
Max Drawdown Largest peak-to-trough decline	-59.92%	-60.35%	+0.43%
Max Drawdown (1Y) Largest decline over 1 year	-7.85%	-6.59%	-1.26%
Max Drawdown (3Y) Largest decline over 3 years	-17.81%	-15.82%	-1.99%
Max Drawdown (5Y) Largest decline over 5 years	-21.38%	-19.72%	-1.66%
Max Drawdown (10Y) Largest decline over 10 years	-39.04%	-38.16%	-0.88%
Current Drawdown Current decline from peak	-0.38%	-0.20%	-0.18%
Average Drawdown Average peak-to-trough decline	-6.65%	-6.93%	+0.28%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.06%	1.59%	+0.47%

Volatility

RSP vs. PRF - Volatility Comparison

Invesco S&P 500 Equal Weight ETF (RSP) and Invesco RAFI US 1000 ETF (PRF) have volatilities of 2.56% and 2.64%, 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

	RSP	PRF	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.56%	2.64%	-0.08%
Volatility (6M) Calculated over the trailing 6-month period	8.29%	7.74%	+0.55%
Volatility (1Y) Calculated over the trailing 1-year period	11.56%	10.63%	+0.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.18%	15.18%	+1.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.35%	17.67%	+0.68%

RSP vs. PRF - Expense Ratio Comparison

RSP has a 0.20% expense ratio, which is lower than PRF's 0.34% expense ratio.

Dividends

RSP vs. PRF - Dividend Comparison

RSP's dividend yield for the trailing twelve months is around 1.49%, more than PRF's 1.38% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PRF Invesco RAFI US 1000 ETF	1.38%	1.59%	1.78%	1.84%	2.01%	1.58%	1.97%	1.99%	2.25%	1.58%	2.17%	2.25%
RSP Invesco S&P 500 Equal Weight ETF	1.49%	1.64%	1.52%	1.64%	1.82%	1.28%	1.64%	1.69%	2.02%	1.52%	1.20%	1.70%

Frequently Asked Questions

Can I hold both RSP and PRF in my portfolio?

With a correlation of 0.93, RSP and PRF 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, RSP or PRF?

PRF has higher volatility (2.64%) compared to RSP (2.56%). In terms of maximum drawdown, RSP dropped -59.92% vs PRF's -60.35%.

Which ETF is better, RSP or PRF?

On 10-year performance, PRF leads with 13.67% vs 11.86% for RSP. On fees, RSP is cheaper at 0.20% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, RSP or PRF?

Over the 10-year period, PRF has performed better with a 13.67% return vs 11.86%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, RSP or PRF?

RSP is cheaper with a 0.20% expense ratio, compared with 0.34% for PRF.

Which ETF pays a higher dividend yield, RSP or PRF?

RSP has the higher dividend yield at 1.49%, compared with 1.38% for PRF.

What is the main difference between RSP and PRF?

RSP is categorized as S&P 500, while PRF is Large Cap Value Equities. RSP tracks S&P 500 Equal Weight Index, while PRF tracks RAFI Fundamental Select US 1000 Index. Their fees differ too: 0.20% for RSP and 0.34% for PRF.

Which has better risk-adjusted returns?

PRF currently has the higher Sharpe Ratio (3.10 vs 1.70), 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.