SIHY vs. EFFI

Last updated Jun 4, 2026

SIHY (Harbor Scientific Alpha High-Yield ETF) and EFFI (Harbor Osmosis International Resource Efficient ETF) are both exchange-traded funds - SIHY is a High Yield Bonds fund tracking the ICE BofA US High Yield, while EFFI is a Foreign Large Cap Equities fund actively managed by Harbor. SIHY is passively managed, while EFFI is actively managed. Over the past year, SIHY returned 8.47% vs 18.33% for EFFI. A 0.53 correlation means they provide meaningful diversification when combined. SIHY charges 0.48%/yr vs 0.55%/yr for EFFI.

Performance

SIHY vs. EFFI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor Scientific Alpha High-Yield ETF (SIHY) and Harbor Osmosis International Resource Efficient ETF (EFFI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SIHY achieves a 1.74% return, which is significantly lower than EFFI's 4.49% return.

SIHY

• 1D: -0.13%
• 1M: 0.88%
• YTD: 1.74%
• 6M: 2.22%
• 1Y: 8.47%
• 3Y*: 9.23%
• 5Y*: —
• 10Y*: —

EFFI

• 1D: -1.47%
• 1M: 3.66%
• YTD: 4.49%
• 6M: 7.35%
• 1Y: 18.33%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SIHY vs. EFFI - Yearly Performance Comparison

	2026 (YTD)	2025	2024
SIHY Harbor Scientific Alpha High-Yield ETF	1.74%	8.13%	-0.74%
EFFI Harbor Osmosis International Resource Efficient ETF	4.49%	33.41%	-3.24%

Correlation

The correlation between SIHY and EFFI is 0.53, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.53
Correlation (All Time) Calculated using the full available price history since Dec 13, 2024	0.53

The correlation between SIHY and EFFI has been stable across timeframes, ranging from 0.53 to 0.53 - a consistent structural relationship.

Return for Risk

SIHY vs. EFFI — Risk / Return Rank

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

SIHY

SIHY Risk / Return Rank: 63
SIHY Sharpe Ratio Rank: 61
SIHY Sortino Ratio Rank: 69
SIHY Omega Ratio Rank: 66
SIHY Calmar Ratio Rank: 55
SIHY Martin Ratio Rank: 62

EFFI

EFFI Risk / Return Rank: 36
EFFI Sharpe Ratio Rank: 36
EFFI Sortino Ratio Rank: 34
EFFI Omega Ratio Rank: 34
EFFI Calmar Ratio Rank: 36
EFFI Martin Ratio Rank: 41

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.

SIHY vs. EFFI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor Scientific Alpha High-Yield ETF (SIHY) and Harbor Osmosis International Resource Efficient ETF (EFFI). 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.

	SIHY	EFFI	Difference
Sharpe ratio Return per unit of total volatility	2.04	1.25	+0.79
Sortino ratio Return per unit of downside risk	3.17	1.77	+1.40
Omega ratio Gain probability vs. loss probability	1.40	1.23	+0.17
Calmar ratio Return relative to maximum drawdown	2.69	1.75	+0.94
Martin ratio Return relative to average drawdown	11.10	6.51	+4.60
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SIHY vs. EFFI - Sharpe Ratio Comparison

The current SIHY Sharpe Ratio is 2.04, which is higher than the EFFI Sharpe Ratio of 1.25. The chart below compares the historical Sharpe Ratios of SIHY and EFFI, 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

	SIHY	EFFI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.04	1.25	+0.79
Sharpe Ratio (All Time) Calculated using the full available price history	0.64	1.37	-0.73

Drawdowns

SIHY vs. EFFI - Drawdown Comparison

The maximum SIHY drawdown since its inception was -13.30%, roughly equal to the maximum EFFI drawdown of -13.64%. Use the drawdown chart below to compare losses from any high point for SIHY and EFFI.

Drawdown Indicators

	SIHY	EFFI	Difference
Max Drawdown Largest peak-to-trough decline	-13.30%	-13.64%	+0.34%
Max Drawdown (1Y) Largest decline over 1 year	-3.17%	-10.55%	+7.38%
Max Drawdown (3Y) Largest decline over 3 years	-5.36%	—	—
Current Drawdown Current decline from peak	-0.13%	-1.64%	+1.51%
Average Drawdown Average peak-to-trough decline	-2.78%	-1.81%	-0.97%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.76%	2.82%	-2.06%

Volatility

SIHY vs. EFFI - Volatility Comparison

The current volatility for Harbor Scientific Alpha High-Yield ETF (SIHY) is 1.16%, while Harbor Osmosis International Resource Efficient ETF (EFFI) has a volatility of 4.42%. This indicates that SIHY experiences smaller price fluctuations and is considered to be less risky than EFFI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SIHY	EFFI	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.16%	4.42%	-3.26%
Volatility (6M) Calculated over the trailing 6-month period	3.09%	11.99%	-8.90%
Volatility (1Y) Calculated over the trailing 1-year period	4.18%	14.72%	-10.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.58%	16.63%	-9.05%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.58%	16.63%	-9.05%

SIHY vs. EFFI - Expense Ratio Comparison

SIHY has a 0.48% expense ratio, which is lower than EFFI's 0.55% expense ratio.

Dividends

SIHY vs. EFFI - Dividend Comparison

SIHY's dividend yield for the trailing twelve months is around 7.26%, more than EFFI's 4.15% yield.

Position	TTM	2025	2024	2023	2022	2021
EFFI Harbor Osmosis International Resource Efficient ETF	4.15%	4.33%	0.00%	0.00%	0.00%	0.00%
SIHY Harbor Scientific Alpha High-Yield ETF	7.26%	7.61%	7.54%	7.06%	6.31%	1.30%

Frequently Asked Questions

Can I hold both SIHY and EFFI in my portfolio?

SIHY and EFFI have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SIHY or EFFI?

EFFI has higher volatility (4.42%) compared to SIHY (1.16%). In terms of maximum drawdown, SIHY dropped -13.30% vs EFFI's -13.64%.

Which ETF is better, SIHY or EFFI?

On 1-year performance, EFFI leads with 18.33% vs 8.47% for SIHY. On fees, SIHY is cheaper at 0.48% per year. On volatility, SIHY has been the lower-risk option at 1.16%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SIHY or EFFI?

Over the 1-year period, EFFI has performed better with a 18.33% return vs 8.47%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SIHY or EFFI?

SIHY is cheaper with a 0.48% expense ratio, compared with 0.55% for EFFI.

Which ETF pays a higher dividend yield, SIHY or EFFI?

SIHY has the higher dividend yield at 7.26%, compared with 4.15% for EFFI.

What is the main difference between SIHY and EFFI?

SIHY is categorized as High Yield Bonds, while EFFI is Foreign Large Cap Equities. Their fees differ too: 0.48% for SIHY and 0.55% for EFFI.

Which has better risk-adjusted returns?

SIHY currently has the higher Sharpe Ratio (2.04 vs 1.25), 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.