PDN vs. GWX

Last updated Aug 2, 2026

PDN (Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF) and GWX (SPDR S&P International Small Cap ETF) are both Foreign Small & Mid Cap Equities funds - PDN tracks the FTSE RAFI Developed x US Mid/Small while GWX tracks the S&P Developed Ex-U.S. Under USD2 Billion Index. Both are passively managed. Over the past 10 years, PDN returned 8.32%/yr vs 6.98%/yr for GWX. Their correlation of 0.89 means they have usually moved in the same direction. PDN charges 0.49%/yr vs 0.40%/yr for GWX.

Performance

PDN vs. GWX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF (PDN) and SPDR S&P International Small Cap ETF (GWX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PDN achieves a 9.46% return, which is significantly higher than GWX's 6.57% return. Over the past 10 years, PDN has outperformed GWX with an annualized return of 8.32%, while GWX has yielded a comparatively lower 6.98% annualized return.

PDN

• 1D: -1.00%
• 1M: 0.32%
• 6M: 3.05%
• YTD: 9.46%
• 1Y: 21.59%
• 3Y*: 16.30%
• 5Y*: 6.75%
• 10Y*: 8.32%
• ALL TIME*: 5.65%

GWX

• 1D: -0.67%
• 1M: -1.75%
• 6M: -0.65%
• YTD: 6.57%
• 1Y: 18.38%
• 3Y*: 14.16%
• 5Y*: 4.99%
• 10Y*: 6.98%
• ALL TIME*: 4.48%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
GWX SPDR S&P International Small Cap ETF	$2.09M	$2.68M	$2.97M
PDN Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF	$407.49K	$457.49K	$907.00K

PDN vs. GWX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PDN Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF	9.46%	38.34%	0.57%	13.35%	-17.35%	9.03%	10.65%	19.17%	-18.38%	30.74%
GWX SPDR S&P International Small Cap ETF	6.57%	35.89%	0.21%	10.94%	-19.98%	9.66%	13.41%	18.18%	-18.97%	28.88%

Correlation

The correlation between PDN and GWX is 0.94, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.94
Correlation (3Y) Balances recent behavior with more history.	0.95
Correlation (5Y) Shows whether the relationship held over a longer period.	0.96
Correlation (10Y) Provides a long-term view across more market conditions.	0.94
Correlation (All Time) Calculated using the full available price history since Sep 28, 2007	0.89

The correlation between PDN and GWX has been stable across timeframes, ranging from 0.89 to 0.96 - a consistent structural relationship.

PDN vs. GWX - Sectors Allocation Comparison

Sectors	PDN	GWX
Industrials	2.5%	22.6%
Basic Materials	2.2%	14.2%
Technology	2.1%	15.6%
Energy	1.9%	4.1%
Consumer Cyclical	1.5%	11.4%
Financial Services	1.4%	7.9%
Real Estate	1.2%	7.2%
Healthcare	1.0%	8.2%
Utilities	0.8%	1.4%
Consumer Defensive	0.6%	4.6%
Communication Services	0.3%	2.9%

Return for Risk

PDN vs. GWX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

PDN

PDN Risk / Return Rank: 58
PDN Sharpe Ratio Rank: 59
PDN Sortino Ratio Rank: 59
PDN Omega Ratio Rank: 60
PDN Calmar Ratio Rank: 54
PDN Martin Ratio Rank: 56

GWX

GWX Risk / Return Rank: 44
GWX Sharpe Ratio Rank: 45
GWX Sortino Ratio Rank: 44
GWX Omega Ratio Rank: 44
GWX Calmar Ratio Rank: 44
GWX Martin Ratio Rank: 43

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

PDN vs. GWX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF (PDN) and SPDR S&P International Small Cap ETF (GWX). 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.

	PDN	GWX	Difference
Sharpe ratio: Return per unit of total volatility	1.40	1.11	+0.30
Sortino ratio: Return per unit of downside risk	2.03	1.61	+0.42
Omega ratio: Gain probability vs. loss probability	1.26	1.20	+0.06
Calmar ratio: Return relative to maximum drawdown	1.93	1.58	+0.35
Martin ratio: Return relative to average drawdown	6.69	4.84	+1.84

PDN vs. GWX - Sharpe Ratio Comparison

The current PDN Sharpe Ratio is 1.40, which is comparable to the GWX Sharpe Ratio of 1.11. The chart below compares the historical Sharpe Ratios of PDN and GWX, 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

PDN vs. GWX - Drawdown Comparison

The maximum PDN drawdown since its inception was -59.32%, smaller than the maximum GWX drawdown of -63.25%. Use the drawdown chart below to compare losses from any high point for PDN and GWX.

Drawdown Indicators

	PDN	GWX	Difference
Max Drawdown Largest peak-to-trough decline	-59.32%	-63.25%	+3.93%
Max Drawdown (1Y) Largest decline over 1 year	-11.26%	-11.91%	+0.65%
Max Drawdown (3Y) Largest decline over 3 years	-12.69%	-14.73%	+2.04%
Max Drawdown (5Y) Largest decline over 5 years	-33.68%	-34.58%	+0.90%
Max Drawdown (10Y) Largest decline over 10 years	-41.94%	-45.27%	+3.33%
Current Drawdown Current decline from peak	-3.30%	-7.40%	+4.10%
Average Drawdown Average peak-to-trough decline	-11.52%	-14.66%	+3.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.25%	3.88%	-0.63%

Volatility

PDN vs. GWX - Volatility Comparison

The current volatility for Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF (PDN) is 4.42%, while SPDR S&P International Small Cap ETF (GWX) has a volatility of 5.20%. This indicates that PDN experiences smaller price fluctuations and is considered to be less risky than GWX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PDN	GWX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.42%	5.20%	-0.78%
Volatility (6M) Calculated over the trailing 6-month period	13.40%	14.72%	-1.32%
Volatility (1Y) Calculated over the trailing 1-year period	15.50%	16.98%	-1.48%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.47%	16.99%	-0.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.92%	17.34%	-0.42%

PDN vs. GWX - Expense Ratio Comparison

PDN has a 0.49% expense ratio, which is higher than GWX's 0.40% expense ratio.

Dividends

PDN vs. GWX - Dividend Comparison

PDN's dividend yield for the trailing twelve months is around 3.26%, more than GWX's 2.78% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GWX SPDR S&P International Small Cap ETF	2.78%	2.83%	2.71%	2.64%	2.71%	2.75%	1.74%	3.41%	2.94%	5.18%	4.21%	2.67%
PDN Invesco FTSE RAFI Developed Markets ex-U.S. Small-Mid ETF	3.26%	3.36%	3.36%	3.16%	2.68%	2.42%	1.79%	2.60%	2.21%	2.42%	2.16%	2.06%

Frequently Asked Questions

Can I hold both PDN and GWX in my portfolio?

With a correlation of 0.94, PDN and GWX 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, PDN or GWX?

GWX has higher volatility (5.20%) compared to PDN (4.42%). In terms of maximum drawdown, PDN dropped -59.32% vs GWX's -63.25%.

Which ETF is better, PDN or GWX?

On 10-year performance, PDN leads with 8.32% vs 6.98% for GWX. On fees, GWX is cheaper at 0.40% per year. On volatility, PDN has been the lower-risk option at 4.42%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PDN or GWX?

Over the 10-year period, PDN has performed better with a 8.32% return vs 6.98%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PDN or GWX?

GWX is cheaper with a 0.40% expense ratio, compared with 0.49% for PDN.

Which ETF pays a higher dividend yield, PDN or GWX?

PDN has the higher dividend yield at 3.26%, compared with 2.78% for GWX.

What is the main difference between PDN and GWX?

PDN tracks FTSE RAFI Developed x US Mid/Small, while GWX tracks S&P Developed Ex-U.S. Under USD2 Billion Index. They also come from different issuers: Invesco and State Street. Their fees differ too: 0.49% for PDN and 0.40% for GWX.

Which has better risk-adjusted returns?

PDN currently has the higher Sharpe Ratio (1.40 vs 1.11), 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.