ETF Evaluator:
Harbor International Compounders ETF ()
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(as of Aug 26)
Best Performing in Foreign Large Growth Over the Last Year
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ETF Details
Harbor International Compounders ETF Overview
Harbor International Compounders ETF (OSEA) is an actively managed International Equity Foreign Large Growth exchange-traded fund (ETF). Harbor Capital Advisors Inc launched the ETF in 2022.
The investment seeks long-term growth of capital.
The fund invests primarily in common stock of non-U.S. companies, including those located in emerging market countries. A company is considered a “compounder” if, in the Subadvisor’s view, it is expected to experience sustainable growth and compound its earnings over the long-term investment horizon (generally defined as five years or more). It is non-diversified.
About Harbor International Compounders ETF (OSEA)
There are 4 members of the management team with an average tenure of 3.90 years: Bo Knudsen (2022), Mattias Kolm (2022), Peter O'Reilly (2022) and Bengt Seger (2022). Management tenure is more important for actively managed ETFs than passive index ETFs.
The ETF has 1 primary benchmark: MSCI ACWI Ex USA NR USD index with a weighting of 100%. Harbor International Compounders ETF has 38 securities in its portfolio. The top 10 holdings constitute 44.2% of the ETF’s assets. The ETF meets the SEC requirement of being classified as a nondiversified fund. The ETF is not considered to have an ESG focus with its investment selection and management.
Harbor International Compounders ETF is part of the Equity global asset class and is within the International Equity ETF group. Harbor International Compounders ETF has 95.5% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 3.6% There is 95.5% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). Harbor International Compounders ETF has 0.9% of the portfolio in cash.
Assets Under Management
The fund has $481 million in total assets, which is below the $1 billion average for the Foreign Large Growth category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
OSEA Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The Harbor International Compounders ETF expense ratio is average compared to funds in the Foreign Large Growth category. Harbor International Compounders ETF has an expense ratio of 0.55%, which is 6% lower than its category average, making the fund expense ratio grade a B. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. Harbor International Compounders ETF has a portfolio turnover rate of 23%, which indicates that it holds its assets around / 0.0 years. By way of comparison, the average portfolio turnover is 58% for the Foreign Large Growth category.
Recently, in the month of July 2026, Harbor International Compounders ETF returned -0.2%, which earned it a grade of B, as the Foreign Large Growth category had an average return of -2.8%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all ETFs in that category.
Harbor International Compounders ETF has a trailing yield of 1.24%, which is below the 1.31% category average.
The fund normally distributes its income annually and its capital gains annually.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
Harbor International Compounders ETF Grades
Year to date, the ETF has returned 0.5%, 7.7 percentage points worse than the category, which translates into a grade of D. The fund has returned 7.8% over the past year (grade of D) and 6.9% over the past three years (grade of F).
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OSEA Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| OSEA Return (NAV) | -0.2% | -0.5% | 7.8% | 6.9% | na | na |
| OSEA Return (Price) | -0.3% | -0.5% | 8.3% | 6.9% | na | na |
| NAV +/- Price Return | 0.031% | -0.070% | -0.484% | 0.016% | na | na |
| Foreign Large Growth Avg | -2.8% | 3.0% | 16.7% | 12.4% | 3.9% | 8.5% |
| OSEA Grade (NAV) | B | D | D | F | na | na |
| +/- Category (NAV) | 2.6% | -3.6% | -8.9% | -5.5% | na | na |
| OSEA Tax-Cost Ratio | na | na | 0.3% | 0.2% | na | na |
OSEA Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| OSEA Return (NAV) | 0.5% | 17.9% | -0.4% | 21.1% | na | na | na | na | na | na | na |
| OSEA Return (Price) | 0.7% | 18.5% | -0.7% | 20.9% | na | na | na | na | na | na | na |
| NAV +/- Price Ret | 0.288% | 0.033% | 0.979% | -0.010% | na | na | na | na | na | na | na |
| Foreign Large Growth Avg | 8.3% | 21.7% | 5.0% | 15.2% | -23.7% | 7.9% | 30.4% | 31.3% | -15.6% | 31.7% | -1.2% |
| OSEA Grade (NAV) | D | D | F | A | na | na | na | na | na | na | na |
| +/- Category | -7.7% | -3.8% | -5.3% | 5.8% | na | na | na | na | na | na | na |
| Risk Measures | |
| Beta: | 0.84 |
| R-Squared: | 82% |
| Standard Deviation: | 12.9% |
| Category Risk Index: | 0.81 |
| Category Risk Rating: | Below Average |
| Total Risk Index: | 1.05 |
| Total Risk Rating: | Average |
| Portfolio Characteristics | |
| Yield: | 1.2% |
| Total Assets: | $ 482 Mil |
| Share Class Assets: | $ 482 Mil |
| Turnover: | 23.0% |
| Expense Ratio: | 0.55% |
| Index Fund: | No |
| Index Tracked: | MSCI ACWI Ex USA NR USD |
| Index Weighting: | 100% |
| Leveraged: | No |
| Socially Responsible Fund: | No |
| Capital Gains Distribution Frequency: | Annually |
| Income Distribution Frequency: | Annually |
Management Team
| Number of Managers: 4 | |||
| Longest Tenure: 3.9 years | |||
| Average Tenure: 3.9 years | |||
| Managers (Year): Knudsen Bo (2022), Kolm Mattias (2022), O'Reilly Peter (2022), Seger Bengt (2022) | |||
Portfolio Composition (as of 7/31/26)
| # of Holdings: | 38 |
| % in Top 10 Holdings: | 44.2% |
| Fund is Non-Diversified: | Yes |
| % in Foreign Issues: | 95.5% |
Portfolio Allocation |
|
| Domestic Stock: | 3.6% |
| Foreign Stock: | 95.5% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 0.9% |
Purchase Information
| Legal Structure: | Open Ended Investment Company |
| Fund Family: | Harbor Capital Advisors Inc |
| Phone Number: | 800-422-1050 |
| Website: | |
| Inception Date: | September 7, 2022 |
Expenses and Fees
| Expense Ratio (%): | 0.55% (Rating: Avg) |
| Category Average Expense Ratio (%): | 0.59% |
