SIHY vs. CLOA

Last updated Jun 3, 2026

SIHY (Harbor Scientific Alpha High-Yield ETF) and CLOA (BlackRock AAA CLO ETF) are both exchange-traded funds - SIHY is a High Yield Bonds fund tracking the ICE BofA US High Yield, while CLOA is a CLO fund actively managed by BlackRock. SIHY is passively managed, while CLOA is actively managed. Over the past 3 years, SIHY returned 9.28%/yr vs 6.73%/yr for CLOA. At a 0.11 correlation, their price movements are largely independent. SIHY charges 0.48%/yr vs 0.20%/yr for CLOA.

Performance

SIHY vs. CLOA - Performance Comparison

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

Returns By Period

In the year-to-date period, SIHY achieves a 1.87% return, which is significantly lower than CLOA's 2.04% return.

SIHY

• 1D: 0.18%
• 1M: 0.79%
• YTD: 1.87%
• 6M: 2.51%
• 1Y: 8.94%
• 3Y*: 9.28%
• 5Y*: —
• 10Y*: —

CLOA

• 1D: 0.02%
• 1M: 0.40%
• YTD: 2.04%
• 6M: 2.50%
• 1Y: 5.28%
• 3Y*: 6.73%
• 5Y*: —
• 10Y*: —

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

SIHY vs. CLOA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
SIHY Harbor Scientific Alpha High-Yield ETF	1.87%	8.13%	8.67%	9.38%
CLOA BlackRock AAA CLO ETF	2.04%	5.44%	7.25%	8.38%

Correlation

The correlation between SIHY and CLOA is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.22
Correlation (3Y) Calculated over the trailing 3-year period	0.13
Correlation (All Time) Calculated using the full available price history since Jan 13, 2023	0.11

The correlation between SIHY and CLOA shifts across timeframes, from 0.11 (all time) to 0.22 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

SIHY vs. CLOA — Risk / Return Rank

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

SIHY

SIHY Risk / Return Rank: 65
SIHY Sharpe Ratio Rank: 63
SIHY Sortino Ratio Rank: 72
SIHY Omega Ratio Rank: 69
SIHY Calmar Ratio Rank: 56
SIHY Martin Ratio Rank: 63

CLOA

CLOA Risk / Return Rank: 99
CLOA Sharpe Ratio Rank: 99
CLOA Sortino Ratio Rank: 99
CLOA Omega Ratio Rank: 99
CLOA Calmar Ratio Rank: 99
CLOA Martin Ratio Rank: 99

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. CLOA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Harbor Scientific Alpha High-Yield ETF (SIHY) and BlackRock AAA CLO ETF (CLOA). 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	CLOA	Difference
Sharpe ratio Return per unit of total volatility	2.15	7.45	-5.30
Sortino ratio Return per unit of downside risk	3.34	13.98	-10.64
Omega ratio Gain probability vs. loss probability	1.42	3.34	-1.92
Calmar ratio Return relative to maximum drawdown	2.82	30.38	-27.56
Martin ratio Return relative to average drawdown	11.68	150.43	-138.75
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. CLOA - Sharpe Ratio Comparison

The current SIHY Sharpe Ratio is 2.15, which is lower than the CLOA Sharpe Ratio of 7.45. The chart below compares the historical Sharpe Ratios of SIHY and CLOA, 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	CLOA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.15	7.45	-5.30
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	5.22	-4.57

Drawdowns

SIHY vs. CLOA - Drawdown Comparison

The maximum SIHY drawdown since its inception was -13.30%, which is greater than CLOA's maximum drawdown of -1.34%. Use the drawdown chart below to compare losses from any high point for SIHY and CLOA.

Drawdown Indicators

	SIHY	CLOA	Difference
Max Drawdown Largest peak-to-trough decline	-13.30%	-1.34%	-11.96%
Max Drawdown (1Y) Largest decline over 1 year	-3.17%	-0.18%	-2.99%
Max Drawdown (3Y) Largest decline over 3 years	-5.36%	-1.13%	-4.23%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.78%	-0.05%	-2.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.76%	0.04%	+0.72%

Volatility

SIHY vs. CLOA - Volatility Comparison

Harbor Scientific Alpha High-Yield ETF (SIHY) has a higher volatility of 1.18% compared to BlackRock AAA CLO ETF (CLOA) at 0.15%. This indicates that SIHY's price experiences larger fluctuations and is considered to be riskier than CLOA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SIHY	CLOA	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.18%	0.15%	+1.03%
Volatility (6M) Calculated over the trailing 6-month period	3.09%	0.48%	+2.61%
Volatility (1Y) Calculated over the trailing 1-year period	4.18%	0.71%	+3.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.58%	1.32%	+6.26%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.58%	1.32%	+6.26%

SIHY vs. CLOA - Expense Ratio Comparison

SIHY has a 0.48% expense ratio, which is higher than CLOA's 0.20% expense ratio.

Dividends

SIHY vs. CLOA - Dividend Comparison

SIHY's dividend yield for the trailing twelve months is around 7.25%, more than CLOA's 4.96% yield.

Position	TTM	2025	2024	2023	2022	2021
CLOA BlackRock AAA CLO ETF	4.96%	5.35%	6.01%	5.88%	0.00%	0.00%
SIHY Harbor Scientific Alpha High-Yield ETF	7.25%	7.61%	7.54%	7.06%	6.31%	1.30%

Frequently Asked Questions

Can I hold both SIHY and CLOA in my portfolio?

SIHY and CLOA have a correlation of 0.22, 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 CLOA?

SIHY has higher volatility (1.18%) compared to CLOA (0.15%). In terms of maximum drawdown, SIHY dropped -13.30% vs CLOA's -1.34%.

Which ETF is better, SIHY or CLOA?

On 3-year performance, SIHY leads with 9.28% vs 6.73% for CLOA. On fees, CLOA is cheaper at 0.20% per year. On volatility, CLOA has been the lower-risk option at 0.15%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SIHY or CLOA?

Over the 3-year period, SIHY has performed better with a 9.28% return vs 6.73%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SIHY or CLOA?

CLOA is cheaper with a 0.20% expense ratio, compared with 0.48% for SIHY.

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

SIHY has the higher dividend yield at 7.25%, compared with 4.96% for CLOA.

What is the main difference between SIHY and CLOA?

SIHY is categorized as High Yield Bonds, while CLOA is CLO. They also come from different issuers: Harbor and BlackRock. Their fees differ too: 0.48% for SIHY and 0.20% for CLOA.

Which has better risk-adjusted returns?

CLOA currently has the higher Sharpe Ratio (7.45 vs 2.15), 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.