OSEA vs. IDEV

Last updated Jun 4, 2026

OSEA (Harbor International Compounders ETF) and IDEV (iShares Core MSCI International Developed Markets ETF) are both Foreign Large Cap Equities funds. OSEA is actively managed, while IDEV is passively managed. Over the past 3 years, OSEA returned 7.38%/yr vs 17.40%/yr for IDEV. Their correlation of 0.89 suggests significant overlap in exposure. OSEA charges 0.55%/yr vs 0.05%/yr for IDEV.

Performance

OSEA vs. IDEV - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor International Compounders ETF (OSEA) and iShares Core MSCI International Developed Markets ETF (IDEV). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OSEA achieves a 0.79% return, which is significantly lower than IDEV's 8.92% return.

OSEA

• 1D: -0.88%
• 1M: 1.06%
• YTD: 0.79%
• 6M: 1.49%
• 1Y: 7.05%
• 3Y*: 7.38%
• 5Y*: —
• 10Y*: —

IDEV

• 1D: -0.90%
• 1M: 3.23%
• YTD: 8.92%
• 6M: 11.57%
• 1Y: 23.20%
• 3Y*: 17.40%
• 5Y*: 8.48%
• 10Y*: —

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

OSEA vs. IDEV - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022
OSEA Harbor International Compounders ETF	0.79%	18.49%	-0.73%	20.88%	9.77%
IDEV iShares Core MSCI International Developed Markets ETF	8.92%	32.56%	4.54%	17.36%	6.76%

Correlation

The correlation between OSEA and IDEV 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	0.89
Correlation (All Time) Calculated using the full available price history since Sep 9, 2022	0.89

The correlation between OSEA and IDEV has been stable across timeframes, ranging from 0.88 to 0.89 - a consistent structural relationship.

OSEA vs. IDEV - Sectors Allocation Comparison

Sectors	OSEA	IDEV
Technology	23.4%	9.9%
Industrials	20.6%	19.1%
Financial Services	14.5%	24.2%
Consumer Cyclical	11.6%	7.7%
Consumer Defensive	10.2%	6.0%
Healthcare	10.1%	8.6%
Communication Services	6.5%	4.0%
Basic Materials	5.8%	8.0%
Utilities	3.9%	3.7%
Energy	-	5.9%
Real Estate	-	2.9%

Return for Risk

OSEA vs. IDEV — Risk / Return Rank

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

OSEA

OSEA Risk / Return Rank: 17
OSEA Sharpe Ratio Rank: 16
OSEA Sortino Ratio Rank: 16
OSEA Omega Ratio Rank: 15
OSEA Calmar Ratio Rank: 17
OSEA Martin Ratio Rank: 20

IDEV

IDEV Risk / Return Rank: 45
IDEV Sharpe Ratio Rank: 45
IDEV Sortino Ratio Rank: 45
IDEV Omega Ratio Rank: 44
IDEV Calmar Ratio Rank: 41
IDEV Martin Ratio Rank: 48

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.

OSEA vs. IDEV - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor International Compounders ETF (OSEA) 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.

	OSEA	IDEV	Difference
Sharpe ratio Return per unit of total volatility	0.47	1.61	-1.14
Sortino ratio Return per unit of downside risk	0.76	2.29	-1.53
Omega ratio Gain probability vs. loss probability	1.09	1.29	-0.20
Calmar ratio Return relative to maximum drawdown	0.64	2.08	-1.44
Martin ratio Return relative to average drawdown	2.29	8.16	-5.87
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OSEA vs. IDEV - Sharpe Ratio Comparison

The current OSEA Sharpe Ratio is 0.47, which is lower than the IDEV Sharpe Ratio of 1.61. The chart below compares the historical Sharpe Ratios of OSEA and IDEV, 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

	OSEA	IDEV	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.47	1.61	-1.14
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.52	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.78	0.55	+0.23

Drawdowns

OSEA vs. IDEV - Drawdown Comparison

The maximum OSEA drawdown since its inception was -18.14%, smaller than the maximum IDEV drawdown of -34.77%. Use the drawdown chart below to compare losses from any high point for OSEA and IDEV.

Drawdown Indicators

	OSEA	IDEV	Difference
Max Drawdown Largest peak-to-trough decline	-18.14%	-34.77%	+16.63%
Max Drawdown (1Y) Largest decline over 1 year	-11.08%	-11.20%	+0.12%
Max Drawdown (3Y) Largest decline over 3 years	-18.14%	-13.41%	-4.73%
Max Drawdown (5Y) Largest decline over 5 years	—	-29.15%	—
Current Drawdown Current decline from peak	-3.02%	-0.98%	-2.04%
Average Drawdown Average peak-to-trough decline	-3.82%	-6.57%	+2.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.09%	2.85%	+0.24%

Volatility

OSEA vs. IDEV - Volatility Comparison

Harbor International Compounders ETF (OSEA) has a higher volatility of 5.42% compared to iShares Core MSCI International Developed Markets ETF (IDEV) at 4.60%. This indicates that OSEA's price experiences larger fluctuations and is considered to be riskier than IDEV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OSEA	IDEV	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.42%	4.60%	+0.82%
Volatility (6M) Calculated over the trailing 6-month period	12.05%	12.10%	-0.05%
Volatility (1Y) Calculated over the trailing 1-year period	15.13%	14.51%	+0.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.62%	16.26%	+0.36%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.62%	17.27%	-0.65%

OSEA vs. IDEV - Expense Ratio Comparison

OSEA has a 0.55% expense ratio, which is higher than IDEV's 0.05% expense ratio.

Dividends

OSEA vs. IDEV - Dividend Comparison

OSEA's dividend yield for the trailing twelve months is around 1.23%, less than IDEV's 3.13% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
IDEV iShares Core MSCI International Developed Markets ETF	3.13%	3.40%	3.30%	3.07%	2.69%	3.05%	2.00%	3.18%	3.16%	1.54%
OSEA Harbor International Compounders ETF	1.23%	1.24%	0.51%	0.65%	0.11%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both OSEA and IDEV in my portfolio?

OSEA and IDEV 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, OSEA or IDEV?

OSEA has higher volatility (5.42%) compared to IDEV (4.60%). In terms of maximum drawdown, OSEA dropped -18.14% vs IDEV's -34.77%.

Which ETF is better, OSEA or IDEV?

On 3-year performance, IDEV leads with 17.40% vs 7.38% for OSEA. On fees, IDEV is cheaper at 0.05% per year. On volatility, IDEV has been the lower-risk option at 4.60%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OSEA or IDEV?

Over the 3-year period, IDEV has performed better with a 17.40% return vs 7.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OSEA or IDEV?

IDEV is cheaper with a 0.05% expense ratio, compared with 0.55% for OSEA.

Which ETF pays a higher dividend yield, OSEA or IDEV?

IDEV has the higher dividend yield at 3.13%, compared with 1.23% for OSEA.

What is the main difference between OSEA and IDEV?

They also come from different issuers: Harbor and iShares. Their fees differ too: 0.55% for OSEA and 0.05% for IDEV.

Which has better risk-adjusted returns?

IDEV currently has the higher Sharpe Ratio (1.61 vs 0.47), 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.