EFFI vs. SIHY

Last updated Jul 11, 2026

EFFI (Harbor Osmosis International Resource Efficient ETF) and SIHY (Harbor Scientific Alpha High-Yield ETF) are both exchange-traded funds - EFFI is a Foreign Large Cap Equities fund actively managed by Harbor, while SIHY is a High Yield Bonds fund tracking the ICE BofA US High Yield. EFFI is actively managed, while SIHY is passively managed. Over the past year, EFFI returned 16.73% vs 7.35% for SIHY. A 0.54 correlation means they provide meaningful diversification when combined. EFFI charges 0.55%/yr vs 0.48%/yr for SIHY.

Performance

EFFI vs. SIHY - Performance Comparison

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

Returns By Period

In the year-to-date period, EFFI achieves a 5.92% return, which is significantly higher than SIHY's 2.67% return.

EFFI

• 1D: 0.10%
• 1M: 0.77%
• 6M: 4.30%
• YTD: 5.92%
• 1Y: 16.73%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SIHY

• 1D: 0.01%
• 1M: 0.50%
• 6M: 2.18%
• YTD: 2.67%
• 1Y: 7.35%
• 3Y*: 9.46%
• 5Y*: —
• 10Y*: —

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

EFFI vs. SIHY - Yearly Performance Comparison

	2026 (YTD)	2025	2024
EFFI Harbor Osmosis International Resource Efficient ETF	5.92%	33.41%	-3.24%
SIHY Harbor Scientific Alpha High-Yield ETF	2.67%	8.13%	-0.90%

Correlation

The correlation between EFFI and SIHY 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 12, 2024	0.54

The correlation between EFFI and SIHY has been stable across timeframes, ranging from 0.53 to 0.54 - a consistent structural relationship.

Return for Risk

EFFI vs. SIHY — Risk / Return Rank

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

EFFI

EFFI Risk / Return Rank: 37
EFFI Sharpe Ratio Rank: 36
EFFI Sortino Ratio Rank: 35
EFFI Omega Ratio Rank: 34
EFFI Calmar Ratio Rank: 37
EFFI Martin Ratio Rank: 43

SIHY

SIHY Risk / Return Rank: 67
SIHY Sharpe Ratio Rank: 67
SIHY Sortino Ratio Rank: 76
SIHY Omega Ratio Rank: 71
SIHY Calmar Ratio Rank: 57
SIHY Martin Ratio Rank: 65

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.

EFFI vs. SIHY - Risk-Adjusted Trends Comparison

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

	EFFI	SIHY	Difference
Sharpe ratio: Return per unit of total volatility	1.05	1.73	-0.68
Sortino ratio: Return per unit of downside risk	1.52	2.70	-1.17
Omega ratio: Gain probability vs. loss probability	1.19	1.33	-0.14
Calmar ratio: Return relative to maximum drawdown	1.49	2.25	-0.76
Martin ratio: Return relative to average drawdown	5.50	9.39	-3.88

EFFI vs. SIHY - Sharpe Ratio Comparison

The current EFFI Sharpe Ratio is 1.05, which is lower than the SIHY Sharpe Ratio of 1.73. The chart below compares the historical Sharpe Ratios of EFFI and SIHY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

EFFI vs. SIHY - Drawdown Comparison

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

Drawdown Indicators

	EFFI	SIHY	Difference
Max Drawdown Largest peak-to-trough decline	-13.64%	-13.30%	-0.34%
Max Drawdown (1Y) Largest decline over 1 year	-10.55%	-3.17%	-7.38%
Max Drawdown (3Y) Largest decline over 3 years	—	-5.36%	—
Current Drawdown Current decline from peak	-1.35%	-0.02%	-1.33%
Average Drawdown Average peak-to-trough decline	-1.78%	-2.72%	+0.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.86%	0.76%	+2.10%

Volatility

EFFI vs. SIHY - Volatility Comparison

Harbor Osmosis International Resource Efficient ETF (EFFI) has a higher volatility of 4.01% compared to Harbor Scientific Alpha High-Yield ETF (SIHY) at 1.15%. This indicates that EFFI's price experiences larger fluctuations and is considered to be riskier than SIHY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EFFI	SIHY	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.01%	1.15%	+2.86%
Volatility (6M) Calculated over the trailing 6-month period	12.49%	3.15%	+9.34%
Volatility (1Y) Calculated over the trailing 1-year period	14.91%	4.13%	+10.78%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.44%	7.51%	+8.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.44%	7.51%	+8.93%

EFFI vs. SIHY - Expense Ratio Comparison

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

Dividends

EFFI vs. SIHY - Dividend Comparison

EFFI's dividend yield for the trailing twelve months is around 4.09%, less than SIHY's 7.12% yield.

Position	TTM	2025	2024	2023	2022	2021
EFFI Harbor Osmosis International Resource Efficient ETF	4.09%	4.33%	0.00%	0.00%	0.00%	0.00%
SIHY Harbor Scientific Alpha High-Yield ETF	7.12%	7.61%	7.54%	7.06%	6.31%	1.30%

Frequently Asked Questions

Can I hold both EFFI and SIHY in my portfolio?

EFFI and SIHY 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, EFFI or SIHY?

EFFI has higher volatility (4.01%) compared to SIHY (1.15%). In terms of maximum drawdown, EFFI dropped -13.64% vs SIHY's -13.30%.

Which ETF is better, EFFI or SIHY?

On 1-year performance, EFFI leads with 16.73% vs 7.35% for SIHY. On fees, SIHY is cheaper at 0.48% per year. On volatility, SIHY has been the lower-risk option at 1.15%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EFFI or SIHY?

Over the 1-year period, EFFI has performed better with a 16.73% return vs 7.35%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EFFI or SIHY?

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

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

SIHY has the higher dividend yield at 7.12%, compared with 4.09% for EFFI.

What is the main difference between EFFI and SIHY?

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

Which has better risk-adjusted returns?

SIHY currently has the higher Sharpe Ratio (1.73 vs 1.05), 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.