HIISX vs. HABDX

Last updated Jun 4, 2026

HIISX (Harbor International Small Cap Fund) and HABDX (Harbor Core Plus Fund) are both mutual funds - HIISX is a Foreign Small & Mid Cap Equities fund managed by Harbor, while HABDX is a Intermediate Core-Plus Bond fund managed by Harbor. Over the past 5 years, HIISX returned 6.07%/yr vs 0.72%/yr for HABDX. At a 0.08 correlation, their price movements are largely independent. HIISX charges 1.32%/yr vs 0.38%/yr for HABDX.

Performance

HIISX vs. HABDX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor International Small Cap Fund (HIISX) and Harbor Core Plus Fund (HABDX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, HIISX achieves a 12.21% return, which is significantly higher than HABDX's 0.68% return.

HIISX

• 1D: 0.00%
• 1M: 3.74%
• YTD: 12.21%
• 6M: 15.09%
• 1Y: 21.86%
• 3Y*: 12.87%
• 5Y*: 6.07%
• 10Y*: —

HABDX

• 1D: 0.10%
• 1M: 0.65%
• YTD: 0.68%
• 6M: 0.56%
• 1Y: 5.80%
• 3Y*: 4.72%
• 5Y*: 0.72%
• 10Y*: 2.28%

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

HIISX vs. HABDX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
HIISX Harbor International Small Cap Fund	12.21%	24.37%	-1.12%	8.90%	-8.70%	16.70%	7.75%	21.61%	-19.71%	37.11%
HABDX Harbor Core Plus Fund	0.68%	7.28%	2.56%	6.70%	-13.23%	-0.64%	8.88%	8.42%	-0.20%	4.89%

Correlation

The correlation between HIISX and HABDX is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (3Y) Calculated over the trailing 3-year period	0.32
Correlation (5Y) Calculated over the trailing 5-year period	0.23
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.08

Over the past year, HIISX and HABDX have become more correlated (0.39) than their long-term average of 0.08, meaning their price movements have been converging.

Return for Risk

HIISX vs. HABDX — Risk / Return Rank

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

HIISX

HIISX Risk / Return Rank: 28
HIISX Sharpe Ratio Rank: 29
HIISX Sortino Ratio Rank: 30
HIISX Omega Ratio Rank: 29
HIISX Calmar Ratio Rank: 27
HIISX Martin Ratio Rank: 25

HABDX

HABDX Risk / Return Rank: 30
HABDX Sharpe Ratio Rank: 30
HABDX Sortino Ratio Rank: 32
HABDX Omega Ratio Rank: 29
HABDX Calmar Ratio Rank: 32
HABDX Martin Ratio Rank: 27

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.

HIISX vs. HABDX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor International Small Cap Fund (HIISX) and Harbor Core Plus Fund (HABDX). 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.

	HIISX	HABDX	Difference
Sharpe ratio Return per unit of total volatility	1.55	1.57	-0.02
Sortino ratio Return per unit of downside risk	2.28	2.36	-0.08
Omega ratio Gain probability vs. loss probability	1.28	1.28	0.00
Calmar ratio Return relative to maximum drawdown	1.93	2.14	-0.20
Martin ratio Return relative to average drawdown	6.19	6.43	-0.24
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

HIISX vs. HABDX - Sharpe Ratio Comparison

The current HIISX Sharpe Ratio is 1.55, which is comparable to the HABDX Sharpe Ratio of 1.57. The chart below compares the historical Sharpe Ratios of HIISX and HABDX, 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

	HIISX	HABDX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.55	1.57	-0.02
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.39	0.13	+0.26
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	1.33	-0.75

Drawdowns

HIISX vs. HABDX - Drawdown Comparison

The maximum HIISX drawdown since its inception was -42.19%, which is greater than HABDX's maximum drawdown of -17.94%. Use the drawdown chart below to compare losses from any high point for HIISX and HABDX.

Drawdown Indicators

	HIISX	HABDX	Difference
Max Drawdown Largest peak-to-trough decline	-42.19%	-17.94%	-24.25%
Max Drawdown (1Y) Largest decline over 1 year	-10.93%	-2.73%	-8.20%
Max Drawdown (3Y) Largest decline over 3 years	-15.37%	-6.15%	-9.22%
Max Drawdown (5Y) Largest decline over 5 years	-26.11%	-17.94%	-8.17%
Max Drawdown (10Y) Largest decline over 10 years	—	-17.94%	—
Current Drawdown Current decline from peak	-1.13%	-1.22%	+0.09%
Average Drawdown Average peak-to-trough decline	-8.84%	-1.87%	-6.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.41%	0.90%	+2.51%

Volatility

HIISX vs. HABDX - Volatility Comparison

Harbor International Small Cap Fund (HIISX) has a higher volatility of 3.59% compared to Harbor Core Plus Fund (HABDX) at 1.27%. This indicates that HIISX's price experiences larger fluctuations and is considered to be riskier than HABDX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HIISX	HABDX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.59%	1.27%	+2.32%
Volatility (6M) Calculated over the trailing 6-month period	10.42%	2.59%	+7.83%
Volatility (1Y) Calculated over the trailing 1-year period	13.65%	3.72%	+9.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.62%	5.68%	+9.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.26%	4.83%	+11.43%

HIISX vs. HABDX - Expense Ratio Comparison

HIISX has a 1.32% expense ratio, which is higher than HABDX's 0.38% expense ratio.

Dividends

HIISX vs. HABDX - Dividend Comparison

HIISX's dividend yield for the trailing twelve months is around 7.94%, more than HABDX's 4.70% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
HABDX Harbor Core Plus Fund	4.70%	4.65%	4.46%	4.24%	3.41%	3.12%	3.27%	3.19%	3.08%	3.41%	3.86%	5.40%
HIISX Harbor International Small Cap Fund	7.94%	8.91%	4.71%	1.84%	2.22%	6.97%	0.93%	2.35%	3.78%	0.99%	0.00%	0.00%

Frequently Asked Questions

Can I hold both HIISX and HABDX in my portfolio?

HIISX and HABDX have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, HIISX or HABDX?

HIISX has higher volatility (3.59%) compared to HABDX (1.27%). In terms of maximum drawdown, HIISX dropped -42.19% vs HABDX's -17.94%.

Which has better risk-adjusted returns?

HABDX currently has the higher Sharpe Ratio (1.57 vs 1.55), 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.