REFA vs. IDEV
REFA (Columbia Research Enhanced International Equity ETF) and IDEV (iShares Core MSCI International Developed Markets ETF) are both Foreign Large Cap Equities funds - REFA tracks the Beta Advantage Research Enhanced International Equity Index while IDEV tracks the MSCI World ex USA Investable Market Index. Both are passively managed. With a 0.96 correlation, they move nearly in lockstep. REFA charges 0.32%/yr vs 0.05%/yr for IDEV.
Performance
REFA vs. IDEV - Performance Comparison
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Returns By Period
In the year-to-date period, REFA achieves a 11.14% return, which is significantly higher than IDEV's 10.22% return.
REFA
- 1D
- 1.35%
- 1M
- 2.81%
- 6M
- 9.75%
- YTD
- 11.14%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
IDEV
- 1D
- 1.07%
- 1M
- 1.19%
- 6M
- 9.15%
- YTD
- 10.22%
- 1Y
- 21.47%
- 3Y*
- 17.28%
- 5Y*
- 9.07%
- 10Y*
- —
REFA vs. IDEV - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
REFA Columbia Research Enhanced International Equity ETF | 11.14% | 0.33% |
IDEV iShares Core MSCI International Developed Markets ETF | 10.22% | 1.36% |
Correlation
The correlation between REFA and IDEV is 0.96 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Dec 11, 2025 | 0.96 |
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Return for Risk
REFA vs. IDEV — Risk / Return Rank
REFA
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
IDEV
REFA vs. IDEV - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Columbia Research Enhanced International Equity ETF (REFA) and iShares Core MSCI International Developed Markets ETF (IDEV). 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.
| REFA | IDEV | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | — | 1.26 | — |
| Calmar ratioReturn relative to maximum drawdown | — | 1.94 | — |
| Martin ratioReturn relative to average drawdown | — | 7.57 | — |
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Drawdowns
REFA vs. IDEV - Drawdown Comparison
The maximum REFA drawdown since its inception was -11.23%, smaller than the maximum IDEV drawdown of -34.77%. Use the drawdown chart below to compare losses from any high point for REFA and IDEV.
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Drawdown Indicators
| REFA | IDEV | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -11.23% | -34.77% | +23.54% |
Max Drawdown (1Y)Largest decline over 1 year | — | -11.20% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -13.41% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -29.15% | — |
Current DrawdownCurrent decline from peak | -0.36% | -0.28% | -0.08% |
Average DrawdownAverage peak-to-trough decline | -2.79% | -6.52% | +3.73% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 2.87% | — |
Volatility
REFA vs. IDEV - Volatility Comparison
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Volatility by Period
| REFA | IDEV | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 5.17% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 12.90% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 18.61% | 15.04% | +3.57% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.61% | 16.35% | +2.26% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.61% | 17.27% | +1.34% |
REFA vs. IDEV - Expense Ratio Comparison
REFA has a 0.32% expense ratio, which is higher than IDEV's 0.05% expense ratio.
Dividends
REFA vs. IDEV - Dividend Comparison
REFA's dividend yield for the trailing twelve months is around 0.03%, less than IDEV's 3.21% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
IDEV iShares Core MSCI International Developed Markets ETF | 3.21% | 3.40% | 3.30% | 3.07% | 2.69% | 3.05% | 2.00% | 3.18% | 3.16% | 1.54% |
REFA Columbia Research Enhanced International Equity ETF | 0.03% | 0.03% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.96, REFA and IDEV 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.
On fees, IDEV is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.
IDEV is cheaper with a 0.05% expense ratio, compared with 0.32% for REFA.
IDEV has the higher dividend yield at 3.21%, compared with 0.03% for REFA.
REFA tracks Beta Advantage Research Enhanced International Equity Index, while IDEV tracks MSCI World ex USA Investable Market Index. They also come from different issuers: Columbia Threadneedle and iShares. Their fees differ too: 0.32% for REFA and 0.05% for IDEV.
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