PRFZ vs. RWK

Last updated Jun 23, 2026

PRFZ (Invesco FTSE RAFI US 1500 Small-Mid ETF) and RWK (Invesco S&P MidCap 400 Revenue ETF) are both Small Cap Blend Equities funds from Invesco - PRFZ tracks the FTSE RAFI US 1500 Small-Mid Index while RWK tracks the S&P MidCap 400 Revenue-Weighted Index. Both are passively managed. Over the past 10 years, PRFZ returned 12.21%/yr vs 13.16%/yr for RWK. Their correlation of 0.91 suggests significant overlap in exposure. Both charge a 0.39% expense ratio.

Performance

PRFZ vs. RWK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco FTSE RAFI US 1500 Small-Mid ETF (PRFZ) and Invesco S&P MidCap 400 Revenue ETF (RWK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRFZ achieves a 16.56% return, which is significantly higher than RWK's 14.32% return. Over the past 10 years, PRFZ has underperformed RWK with an annualized return of 12.21%, while RWK has yielded a comparatively higher 13.16% annualized return.

PRFZ

• 1D: 0.11%
• 1M: 4.27%
• YTD: 16.56%
• 6M: 13.40%
• 1Y: 36.25%
• 3Y*: 18.70%
• 5Y*: 8.61%
• 10Y*: 12.21%

RWK

• 1D: -0.04%
• 1M: 3.93%
• YTD: 14.32%
• 6M: 11.91%
• 1Y: 28.00%
• 3Y*: 17.62%
• 5Y*: 11.68%
• 10Y*: 13.16%

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

PRFZ vs. RWK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PRFZ Invesco FTSE RAFI US 1500 Small-Mid ETF	16.56%	11.26%	12.68%	20.21%	-16.29%	28.26%	11.84%	21.91%	-11.43%	13.82%
RWK Invesco S&P MidCap 400 Revenue ETF	14.32%	10.27%	11.94%	23.76%	-8.19%	34.31%	11.06%	28.20%	-14.65%	13.39%

Correlation

The correlation between PRFZ and RWK is 0.88, 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	0.88
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.94
Correlation (All Time) Calculated using the full available price history since Feb 22, 2008	0.91

The correlation between PRFZ and RWK has been stable across timeframes, ranging from 0.88 to 0.94 - a consistent structural relationship.

PRFZ vs. RWK - Sectors Allocation Comparison

Sectors	PRFZ	RWK
Technology	19.6%	16.1%
Healthcare	16.8%	4.2%
Industrials	16.6%	22.1%
Financial Services	13.2%	12.1%
Consumer Cyclical	10.8%	20.4%
Real Estate	7.2%	2.6%
Energy	5.0%	5.0%
Basic Materials	3.5%	4.9%
Communication Services	2.9%	0.7%
Consumer Defensive	2.8%	10.4%
Utilities	1.5%	1.6%

Return for Risk

PRFZ vs. RWK — Risk / Return Rank

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

PRFZ

PRFZ Risk / Return Rank: 64
PRFZ Sharpe Ratio Rank: 62
PRFZ Sortino Ratio Rank: 63
PRFZ Omega Ratio Rank: 55
PRFZ Calmar Ratio Rank: 71
PRFZ Martin Ratio Rank: 68

RWK

RWK Risk / Return Rank: 50
RWK Sharpe Ratio Rank: 50
RWK Sortino Ratio Rank: 54
RWK Omega Ratio Rank: 47
RWK Calmar Ratio Rank: 52
RWK Martin Ratio Rank: 49

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.

PRFZ vs. RWK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco FTSE RAFI US 1500 Small-Mid ETF (PRFZ) and Invesco S&P MidCap 400 Revenue ETF (RWK). 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.

	PRFZ	RWK	Difference
Sharpe ratio: Return per unit of total volatility	1.99	1.67	+0.32
Sortino ratio: Return per unit of downside risk	2.82	2.51	+0.30
Omega ratio: Gain probability vs. loss probability	1.33	1.29	+0.04
Calmar ratio: Return relative to maximum drawdown	3.51	2.53	+0.98
Martin ratio: Return relative to average drawdown	12.08	8.11	+3.97

PRFZ vs. RWK - Sharpe Ratio Comparison

The current PRFZ Sharpe Ratio is 1.99, which is comparable to the RWK Sharpe Ratio of 1.67. The chart below compares the historical Sharpe Ratios of PRFZ and RWK, 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

PRFZ vs. RWK - Drawdown Comparison

The maximum PRFZ drawdown since its inception was -62.41%, which is greater than RWK's maximum drawdown of -56.49%. Use the drawdown chart below to compare losses from any high point for PRFZ and RWK.

Drawdown Indicators

	PRFZ	RWK	Difference
Max Drawdown Largest peak-to-trough decline	-62.41%	-56.49%	-5.92%
Max Drawdown (1Y) Largest decline over 1 year	-10.38%	-11.14%	+0.76%
Max Drawdown (3Y) Largest decline over 3 years	-26.54%	-24.58%	-1.96%
Max Drawdown (5Y) Largest decline over 5 years	-26.58%	-24.58%	-2.00%
Max Drawdown (10Y) Largest decline over 10 years	-44.28%	-46.20%	+1.92%
Current Drawdown Current decline from peak	0.00%	-1.45%	+1.45%
Average Drawdown Average peak-to-trough decline	-9.40%	-7.53%	-1.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.01%	3.46%	-0.45%

Volatility

PRFZ vs. RWK - Volatility Comparison

Invesco FTSE RAFI US 1500 Small-Mid ETF (PRFZ) has a higher volatility of 5.52% compared to Invesco S&P MidCap 400 Revenue ETF (RWK) at 4.32%. This indicates that PRFZ's price experiences larger fluctuations and is considered to be riskier than RWK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRFZ	RWK	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.52%	4.32%	+1.20%
Volatility (6M) Calculated over the trailing 6-month period	12.96%	12.11%	+0.85%
Volatility (1Y) Calculated over the trailing 1-year period	18.32%	16.84%	+1.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.35%	21.09%	+0.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.48%	22.97%	-0.49%

PRFZ vs. RWK - Expense Ratio Comparison

Both PRFZ and RWK have an expense ratio of 0.39%.

Dividends

PRFZ vs. RWK - Dividend Comparison

PRFZ's dividend yield for the trailing twelve months is around 1.01%, less than RWK's 1.36% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PRFZ Invesco FTSE RAFI US 1500 Small-Mid ETF	1.01%	0.82%	1.45%	1.42%	1.33%	0.93%	0.91%	1.29%	1.37%	0.97%	1.31%	1.39%
RWK Invesco S&P MidCap 400 Revenue ETF	1.36%	1.25%	1.11%	1.05%	1.18%	0.85%	0.96%	1.09%	1.22%	0.99%	1.30%	0.92%

Frequently Asked Questions

Can I hold both PRFZ and RWK in my portfolio?

PRFZ and RWK have a correlation of 0.88, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRFZ or RWK?

PRFZ has higher volatility (5.52%) compared to RWK (4.32%). In terms of maximum drawdown, PRFZ dropped -62.41% vs RWK's -56.49%.

Which ETF is better, PRFZ or RWK?

On 10-year performance, RWK leads with 13.16% vs 12.21% for PRFZ. Both ETFs have the same 0.39% expense ratio. On volatility, RWK has been the lower-risk option at 4.32%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PRFZ or RWK?

Over the 10-year period, RWK has performed better with a 13.16% return vs 12.21%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PRFZ or RWK?

PRFZ and RWK have the same expense ratio: 0.39% per year.

Which ETF pays a higher dividend yield, PRFZ or RWK?

RWK has the higher dividend yield at 1.36%, compared with 1.01% for PRFZ.

What is the main difference between PRFZ and RWK?

PRFZ tracks FTSE RAFI US 1500 Small-Mid Index, while RWK tracks S&P MidCap 400 Revenue-Weighted Index.

Which has better risk-adjusted returns?

PRFZ currently has the higher Sharpe Ratio (1.99 vs 1.67), 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.