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PRF vs. RSP
Performance
Return for Risk
Drawdowns
Volatility
Dividends

PRF vs. RSP

Last updated Jul 14, 2026
Documentation

PRF (Invesco RAFI US 1000 ETF) and RSP (Invesco S&P 500 Equal Weight ETF) are both exchange-traded funds - PRF is a Large Cap Value Equities fund tracking the RAFI Fundamental Select US 1000 Index, while RSP is a S&P 500 fund tracking the S&P 500 Equal Weight Index. Both are passively managed. Over the past 10 years, PRF returned 13.52%/yr vs 11.82%/yr for RSP. With a 0.96 correlation, they move nearly in lockstep. PRF charges 0.34%/yr vs 0.20%/yr for RSP.

Performance

PRF vs. RSP - Performance Comparison

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

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Returns By Period

In the year-to-date period, PRF achieves a 16.91% return, which is significantly higher than RSP's 12.75% return. Over the past 10 years, PRF has outperformed RSP with an annualized return of 13.52%, while RSP has yielded a comparatively lower 11.82% annualized return.

PRF

1D
-0.04%
1M
1.09%
6M
13.24%
YTD
16.91%
1Y
29.17%
3Y*
20.21%
5Y*
13.23%
10Y*
13.52%

RSP

1D
-0.03%
1M
1.61%
6M
9.20%
YTD
12.75%
1Y
18.09%
3Y*
13.96%
5Y*
9.07%
10Y*
11.82%
*Multi-year figures are annualized to reflect compound growth (CAGR)

PRF vs. RSP - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
PRF
Invesco RAFI US 1000 ETF		16.91%18.33%16.73%15.72%-7.79%31.12%7.78%27.42%-8.71%16.01%
RSP
Invesco S&P 500 Equal Weight ETF		12.75%11.21%12.79%13.70%-11.62%29.41%12.66%28.91%-7.84%18.52%

Correlation

The correlation between PRF and RSP is 0.91, 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

0.91

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 19, 2005

0.96

The correlation between PRF and RSP has been stable across timeframes, ranging from 0.91 to 0.97 - a consistent structural relationship.

PRF vs. RSP - Sectors Allocation Comparison

Sectors
PRF
RSP

Technology

21.6%
20.9%

Financial Services

16.2%
13.9%

Healthcare

12.7%
11.1%

Consumer Cyclical

8.7%
10.0%

Industrials

8.7%
14.2%

Communication Services

8.6%
3.9%

Energy

7.1%
4.0%

Consumer Defensive

6.1%
6.4%

Basic Materials

3.2%
3.9%

Utilities

3.2%
5.7%

Real Estate

2.4%
6.1%

Technology

PRF
21.6%
RSP
20.9%

Financial Services

PRF
16.2%
RSP
13.9%

Healthcare

PRF
12.7%
RSP
11.1%

Consumer Cyclical

PRF
8.7%
RSP
10.0%

Industrials

PRF
8.7%
RSP
14.2%

Communication Services

PRF
8.6%
RSP
3.9%

Energy

PRF
7.1%
RSP
4.0%

Consumer Defensive

PRF
6.1%
RSP
6.4%

Basic Materials

PRF
3.2%
RSP
3.9%

Utilities

PRF
3.2%
RSP
5.7%

Real Estate

PRF
2.4%
RSP
6.1%

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

Invesco RAFI US 1000 ETF

Invesco S&P 500 Equal Weight ETF

Often compared with PRF:
PRF vs. SPYPRF vs. VOOPRF vs. PFMPRF vs. SCHDPRF vs. VTVPRF vs. PXFPRF vs. VTI
Often compared with RSP:
RSP vs. SPYRSP vs. VOORSP vs. VTIRSP vs. FXAIXRSP vs. IVVRSP vs. EUSARSP vs. GSEW

Return for Risk

PRF vs. RSP — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
PRF
PRF Risk / Return Rank: 9292
Overall Rank
PRF Sharpe Ratio Rank: 9393
Sharpe Ratio Rank
PRF Sortino Ratio Rank: 9393
Sortino Ratio Rank
PRF Omega Ratio Rank: 9292
Omega Ratio Rank
PRF Calmar Ratio Rank: 9191
Calmar Ratio Rank
PRF Martin Ratio Rank: 9292
Martin Ratio Rank
RSP
RSP Risk / Return Rank: 5858
Overall Rank
RSP Sharpe Ratio Rank: 5757
Sharpe Ratio Rank
RSP Sortino Ratio Rank: 6060
Sortino Ratio Rank
RSP Omega Ratio Rank: 5454
Omega Ratio Rank
RSP Calmar Ratio Rank: 5858
Calmar Ratio Rank
RSP Martin Ratio Rank: 6262
Martin Ratio Rank
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.

PRF vs. RSP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco RAFI US 1000 ETF (PRF) and Invesco S&P 500 Equal Weight ETF (RSP). 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.

PRFRSPDifference
Sharpe ratioReturn per unit of total volatility
2.70
1.54

+1.16

Sortino ratioReturn per unit of downside risk
3.75
2.24

+1.50

Omega ratioGain probability vs. loss probability

1.50

1.27

+0.23

Calmar ratioReturn relative to maximum drawdown

4.45

2.31

+2.13

Martin ratioReturn relative to average drawdown

18.13

8.76

+9.37

PRF vs. RSP - Sharpe Ratio Comparison

The current PRF Sharpe Ratio is 2.70, which is higher than the RSP Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of PRF and RSP, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

PRF vs. RSP - Drawdown Comparison

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

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Drawdown Indicators

PRFRSPDifference

Max Drawdown

Largest peak-to-trough decline

-60.35%

-59.92%

-0.43%

Max Drawdown (1Y)

Largest decline over 1 year

-6.59%

-7.85%

+1.26%

Max Drawdown (3Y)

Largest decline over 3 years

-15.82%

-17.81%

+1.99%

Max Drawdown (5Y)

Largest decline over 5 years

-19.72%

-21.38%

+1.66%

Max Drawdown (10Y)

Largest decline over 10 years

-38.16%

-39.04%

+0.88%

Current Drawdown

Current decline from peak

-0.04%

-0.36%

+0.32%

Average Drawdown

Average peak-to-trough decline

-6.90%

-6.62%

-0.28%

Ulcer Index

Depth and duration of drawdowns from previous peaks

1.61%

2.07%

-0.46%

Volatility

PRF vs. RSP - Volatility Comparison

The current volatility for Invesco RAFI US 1000 ETF (PRF) is 2.84%, while Invesco S&P 500 Equal Weight ETF (RSP) has a volatility of 3.42%. This indicates that PRF experiences smaller price fluctuations and is considered to be less risky than RSP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

PRFRSPDifference

Volatility (1M)

Calculated over the trailing 1-month period

2.84%

3.42%

-0.58%

Volatility (6M)

Calculated over the trailing 6-month period

8.09%

8.63%

-0.54%

Volatility (1Y)

Calculated over the trailing 1-year period

10.87%

11.82%

-0.95%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

15.16%

16.19%

-1.03%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

17.59%

18.28%

-0.69%

PRF vs. RSP - Expense Ratio Comparison

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

Dividends

PRF vs. RSP - Dividend Comparison

PRF's dividend yield for the trailing twelve months is around 1.36%, less than RSP's 1.50% yield.

PositionTTM20252024202320222021202020192018201720162015
PRF
Invesco RAFI US 1000 ETF		1.36%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		1.50%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

With a correlation of 0.91, PRF and RSP 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.

RSP has higher volatility (3.42%) compared to PRF (2.84%). In terms of maximum drawdown, PRF dropped -60.35% vs RSP's -59.92%.

On 10-year performance, PRF leads with 13.52% vs 11.82% for RSP. On fees, RSP is cheaper at 0.20% per year. On volatility, PRF has been the lower-risk option at 2.84%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, PRF has performed better with a 13.52% return vs 11.82%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

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

RSP has the higher dividend yield at 1.50%, compared with 1.36% for PRF.

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

PRF currently has the higher Sharpe Ratio (2.70 vs 1.54), 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.

Portfolio Optimizer

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