MFDX vs. IDOG

Last updated Jun 4, 2026

MFDX (PIMCO RAFI Dynamic Multi-Factor International Equity ETF) and IDOG (ALPS International Sector Dividend Dogs ETF) are both Foreign Large Cap Equities funds - MFDX tracks the RAFI Dynamic Multi-Factor Developed Ex-U.S. Index while IDOG tracks the S-Network International Sector Dividend Dogs Index. Both are passively managed. Over the past 5 years, MFDX returned 9.92%/yr vs 13.36%/yr for IDOG. Their correlation of 0.89 suggests significant overlap in exposure. MFDX charges 0.39%/yr vs 0.50%/yr for IDOG.

Performance

MFDX vs. IDOG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in PIMCO RAFI Dynamic Multi-Factor International Equity ETF (MFDX) and ALPS International Sector Dividend Dogs ETF (IDOG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MFDX achieves a 9.73% return, which is significantly lower than IDOG's 14.02% return.

MFDX

• 1D: -0.55%
• 1M: 2.31%
• YTD: 9.73%
• 6M: 12.33%
• 1Y: 23.13%
• 3Y*: 18.62%
• 5Y*: 9.92%
• 10Y*: —

IDOG

• 1D: -0.47%
• 1M: 3.24%
• YTD: 14.02%
• 6M: 16.64%
• 1Y: 35.52%
• 3Y*: 21.96%
• 5Y*: 13.36%
• 10Y*: 10.99%

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

MFDX vs. IDOG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MFDX PIMCO RAFI Dynamic Multi-Factor International Equity ETF	9.73%	34.27%	4.40%	17.54%	-10.27%	11.07%	6.90%	19.88%	-14.88%	7.02%
IDOG ALPS International Sector Dividend Dogs ETF	14.02%	39.94%	1.35%	23.57%	-4.50%	11.33%	-1.78%	21.93%	-13.47%	5.13%

Correlation

The correlation between MFDX and IDOG is 0.81, 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	0.81
Correlation (3Y) Calculated over the trailing 3-year period	0.86
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (All Time) Calculated using the full available price history since Sep 7, 2017	0.89

The correlation between MFDX and IDOG has been stable across timeframes, ranging from 0.81 to 0.89 - a consistent structural relationship.

MFDX vs. IDOG - Sectors Allocation Comparison

Sectors	MFDX	IDOG
Industrials	19.9%	11.7%
Financial Services	16.4%	11.0%
Basic Materials	10.8%	10.0%
Consumer Cyclical	8.6%	9.5%
Consumer Defensive	8.0%	9.4%
Technology	7.1%	8.5%
Communication Services	7.0%	9.9%
Energy	6.8%	10.7%
Utilities	6.4%	10.0%
Healthcare	6.0%	9.3%
Real Estate	3.0%	-

Return for Risk

MFDX vs. IDOG — Risk / Return Rank

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

MFDX

MFDX Risk / Return Rank: 48
MFDX Sharpe Ratio Rank: 48
MFDX Sortino Ratio Rank: 48
MFDX Omega Ratio Rank: 48
MFDX Calmar Ratio Rank: 44
MFDX Martin Ratio Rank: 51

IDOG

IDOG Risk / Return Rank: 83
IDOG Sharpe Ratio Rank: 82
IDOG Sortino Ratio Rank: 79
IDOG Omega Ratio Rank: 76
IDOG Calmar Ratio Rank: 90
IDOG Martin Ratio Rank: 88

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.

MFDX vs. IDOG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for PIMCO RAFI Dynamic Multi-Factor International Equity ETF (MFDX) and ALPS International Sector Dividend Dogs ETF (IDOG). 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.

	MFDX	IDOG	Difference
Sharpe ratio: Return per unit of total volatility	1.70	2.68	-0.99
Sortino ratio: Return per unit of downside risk	2.38	3.58	-1.20
Omega ratio: Gain probability vs. loss probability	1.31	1.46	-0.15
Calmar ratio: Return relative to maximum drawdown	2.18	5.51	-3.33
Martin ratio: Return relative to average drawdown	8.66	19.31	-10.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MFDX vs. IDOG - Sharpe Ratio Comparison

The current MFDX Sharpe Ratio is 1.70, which is lower than the IDOG Sharpe Ratio of 2.68. The chart below compares the historical Sharpe Ratios of MFDX and IDOG, 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

	MFDX	IDOG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.70	2.68	-0.99
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.66	0.86	-0.20
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.63	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.54	0.51	+0.03

Drawdowns

MFDX vs. IDOG - Drawdown Comparison

The maximum MFDX drawdown since its inception was -36.05%, roughly equal to the maximum IDOG drawdown of -37.32%. Use the drawdown chart below to compare losses from any high point for MFDX and IDOG.

Drawdown Indicators

	MFDX	IDOG	Difference
Max Drawdown Largest peak-to-trough decline	-36.05%	-37.32%	+1.27%
Max Drawdown (1Y) Largest decline over 1 year	-10.66%	-6.47%	-4.19%
Max Drawdown (3Y) Largest decline over 3 years	-11.62%	-13.92%	+2.30%
Max Drawdown (5Y) Largest decline over 5 years	-25.58%	-25.31%	-0.27%
Max Drawdown (10Y) Largest decline over 10 years	—	-37.32%	—
Current Drawdown Current decline from peak	-1.84%	-0.47%	-1.37%
Average Drawdown Average peak-to-trough decline	-6.50%	-7.93%	+1.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.68%	1.84%	+0.84%

Volatility

MFDX vs. IDOG - Volatility Comparison

PIMCO RAFI Dynamic Multi-Factor International Equity ETF (MFDX) has a higher volatility of 4.45% compared to ALPS International Sector Dividend Dogs ETF (IDOG) at 4.13%. This indicates that MFDX's price experiences larger fluctuations and is considered to be riskier than IDOG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MFDX	IDOG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.45%	4.13%	+0.32%
Volatility (6M) Calculated over the trailing 6-month period	11.34%	10.09%	+1.25%
Volatility (1Y) Calculated over the trailing 1-year period	13.73%	13.33%	+0.40%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.03%	15.61%	-0.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.41%	17.45%	-1.04%

MFDX vs. IDOG - Expense Ratio Comparison

MFDX has a 0.39% expense ratio, which is lower than IDOG's 0.50% expense ratio.

Dividends

MFDX vs. IDOG - Dividend Comparison

MFDX's dividend yield for the trailing twelve months is around 2.79%, less than IDOG's 3.42% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IDOG ALPS International Sector Dividend Dogs ETF	3.42%	4.26%	4.90%	4.86%	4.46%	3.85%	3.00%	5.41%	4.50%	3.33%	4.01%	4.19%
MFDX PIMCO RAFI Dynamic Multi-Factor International Equity ETF	2.79%	2.97%	3.16%	3.12%	2.85%	2.99%	1.58%	2.88%	2.13%	0.71%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MFDX and IDOG in my portfolio?

MFDX and IDOG have a correlation of 0.81, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MFDX or IDOG?

MFDX has higher volatility (4.45%) compared to IDOG (4.13%). In terms of maximum drawdown, MFDX dropped -36.05% vs IDOG's -37.32%.

Which ETF is better, MFDX or IDOG?

On 5-year performance, IDOG leads with 13.36% vs 9.92% for MFDX. On fees, MFDX is cheaper at 0.39% per year. On volatility, IDOG has been the lower-risk option at 4.13%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MFDX or IDOG?

Over the 5-year period, IDOG has performed better with a 13.36% return vs 9.92%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MFDX or IDOG?

MFDX is cheaper with a 0.39% expense ratio, compared with 0.50% for IDOG.

Which ETF pays a higher dividend yield, MFDX or IDOG?

IDOG has the higher dividend yield at 3.42%, compared with 2.79% for MFDX.

What is the main difference between MFDX and IDOG?

MFDX tracks RAFI Dynamic Multi-Factor Developed Ex-U.S. Index, while IDOG tracks S-Network International Sector Dividend Dogs Index. They also come from different issuers: PIMCO and SS&C. Their fees differ too: 0.39% for MFDX and 0.50% for IDOG.

Which has better risk-adjusted returns?

IDOG currently has the higher Sharpe Ratio (2.68 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.