ISHG vs. ACLO

Last updated Jul 12, 2026

ISHG (iShares 1-3 Year International Treasury Bond ETF) and ACLO (TCW AAA CLO ETF) are both exchange-traded funds - ISHG is a International Government Bonds fund tracking the S&P/Citigroup International Treasury Bond Index Ex-US 1-3 Year, while ACLO is a CLO fund actively managed by TCW. ISHG is passively managed, while ACLO is actively managed. Over the past year, ISHG returned -0.54% vs 5.19% for ACLO. At a correlation of -0.29, they often move in opposite directions. ISHG charges 0.35%/yr vs 0.20%/yr for ACLO.

Performance

ISHG vs. ACLO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares 1-3 Year International Treasury Bond ETF (ISHG) and TCW AAA CLO ETF (ACLO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ISHG achieves a -1.21% return, which is significantly lower than ACLO's 2.69% return.

ISHG

• 1D: 0.06%
• 1M: -1.04%
• 6M: -0.60%
• YTD: -1.21%
• 1Y: -0.54%
• 3Y*: 3.44%
• 5Y*: -0.95%
• 10Y*: -0.18%

ACLO

• 1D: 0.02%
• 1M: 0.38%
• 6M: 2.47%
• YTD: 2.69%
• 1Y: 5.19%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ISHG vs. ACLO - Yearly Performance Comparison

	2026 (YTD)	2025	2024
ISHG iShares 1-3 Year International Treasury Bond ETF	-1.21%	13.31%	-1.30%
ACLO TCW AAA CLO ETF	2.69%	5.32%	0.81%

Correlation

The correlation between ISHG and ACLO is -0.31, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.31
Correlation (All Time) Calculated using the full available price history since Nov 18, 2024	-0.29

Return for Risk

ISHG vs. ACLO — Risk / Return Rank

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

ISHG

ISHG Risk / Return Rank: 7
ISHG Sharpe Ratio Rank: 8
ISHG Sortino Ratio Rank: 7
ISHG Omega Ratio Rank: 7
ISHG Calmar Ratio Rank: 8
ISHG Martin Ratio Rank: 7

ACLO

ACLO Risk / Return Rank: 99
ACLO Sharpe Ratio Rank: 99
ACLO Sortino Ratio Rank: 99
ACLO Omega Ratio Rank: 99
ACLO Calmar Ratio Rank: 99
ACLO 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.

ISHG vs. ACLO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares 1-3 Year International Treasury Bond ETF (ISHG) and TCW AAA CLO ETF (ACLO). 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.

	ISHG	ACLO	Difference
Sharpe ratio: Return per unit of total volatility	-0.13	7.19	-7.32
Sortino ratio: Return per unit of downside risk	-0.14	14.83	-14.98
Omega ratio: Gain probability vs. loss probability	0.98	3.38	-2.39
Calmar ratio: Return relative to maximum drawdown	-0.17	19.47	-19.64
Martin ratio: Return relative to average drawdown	-0.37	161.89	-162.26

ISHG vs. ACLO - Sharpe Ratio Comparison

The current ISHG Sharpe Ratio is -0.13, which is lower than the ACLO Sharpe Ratio of 7.19. The chart below compares the historical Sharpe Ratios of ISHG and ACLO, 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

ISHG vs. ACLO - Drawdown Comparison

The maximum ISHG drawdown since its inception was -37.24%, which is greater than ACLO's maximum drawdown of -1.01%. Use the drawdown chart below to compare losses from any high point for ISHG and ACLO.

Drawdown Indicators

	ISHG	ACLO	Difference
Max Drawdown Largest peak-to-trough decline	-37.24%	-1.01%	-36.23%
Max Drawdown (1Y) Largest decline over 1 year	-5.02%	-0.27%	-4.75%
Max Drawdown (3Y) Largest decline over 3 years	-8.21%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-22.29%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-25.56%	—	—
Current Drawdown Current decline from peak	-23.17%	0.00%	-23.17%
Average Drawdown Average peak-to-trough decline	-18.46%	-0.04%	-18.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.29%	0.03%	+2.26%

Volatility

ISHG vs. ACLO - Volatility Comparison

iShares 1-3 Year International Treasury Bond ETF (ISHG) has a higher volatility of 1.58% compared to TCW AAA CLO ETF (ACLO) at 0.19%. This indicates that ISHG's price experiences larger fluctuations and is considered to be riskier than ACLO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ISHG	ACLO	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.58%	0.19%	+1.39%
Volatility (6M) Calculated over the trailing 6-month period	4.92%	0.56%	+4.36%
Volatility (1Y) Calculated over the trailing 1-year period	6.49%	0.73%	+5.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.59%	1.06%	+6.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	6.91%	1.06%	+5.85%

ISHG vs. ACLO - Expense Ratio Comparison

ISHG has a 0.35% expense ratio, which is higher than ACLO's 0.20% expense ratio.

Dividends

ISHG vs. ACLO - Dividend Comparison

ISHG's dividend yield for the trailing twelve months is around 1.47%, less than ACLO's 4.90% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
ACLO TCW AAA CLO ETF	4.90%	4.87%	0.59%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
ISHG iShares 1-3 Year International Treasury Bond ETF	1.47%	1.45%	2.56%	0.18%	0.00%	1.29%	0.00%	0.00%	1.80%	0.46%	0.00%	0.09%

Frequently Asked Questions

Can I hold both ISHG and ACLO in my portfolio?

ISHG and ACLO have a correlation of -0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ISHG or ACLO?

ISHG has higher volatility (1.58%) compared to ACLO (0.19%). In terms of maximum drawdown, ISHG dropped -37.24% vs ACLO's -1.01%.

Which ETF is better, ISHG or ACLO?

On 1-year performance, ACLO leads with 5.19% vs -0.54% for ISHG. On fees, ACLO is cheaper at 0.20% per year. On volatility, ACLO has been the lower-risk option at 0.19%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ISHG or ACLO?

Over the 1-year period, ACLO has performed better with a 5.19% return vs -0.54%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ISHG or ACLO?

ACLO is cheaper with a 0.20% expense ratio, compared with 0.35% for ISHG.

Which ETF pays a higher dividend yield, ISHG or ACLO?

ACLO has the higher dividend yield at 4.90%, compared with 1.47% for ISHG.

What is the main difference between ISHG and ACLO?

ISHG is categorized as International Government Bonds, while ACLO is CLO. They also come from different issuers: iShares and TCW. Their fees differ too: 0.35% for ISHG and 0.20% for ACLO.

Which has better risk-adjusted returns?

ACLO currently has the higher Sharpe Ratio (7.19 vs -0.13), 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.