ACLO vs. IAUM

Last updated Jun 4, 2026

ACLO (TCW AAA CLO ETF) and IAUM (iShares Gold Trust Micro) are both exchange-traded funds - ACLO is a CLO fund actively managed by TCW, while IAUM is a Gold fund tracking the LBMA Gold Price PM. ACLO is actively managed, while IAUM is passively managed. Over the past year, ACLO returned 5.31% vs 32.42% for IAUM. At a correlation of -0.14, they often move in opposite directions. ACLO charges 0.20%/yr vs 0.09%/yr for IAUM.

Performance

ACLO vs. IAUM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in TCW AAA CLO ETF (ACLO) and iShares Gold Trust Micro (IAUM). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ACLO achieves a 2.21% return, which is significantly lower than IAUM's 3.00% return.

ACLO

• 1D: 0.02%
• 1M: 0.42%
• YTD: 2.21%
• 6M: 2.58%
• 1Y: 5.31%
• 3Y*: —
• 5Y*: —
• 10Y*: —

IAUM

• 1D: -0.96%
• 1M: -1.62%
• YTD: 3.00%
• 6M: 5.58%
• 1Y: 32.42%
• 3Y*: 31.53%
• 5Y*: —
• 10Y*: —

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

ACLO vs. IAUM - Yearly Performance Comparison

	2026 (YTD)	2025	2024
ACLO TCW AAA CLO ETF	2.21%	5.32%	0.81%
IAUM iShares Gold Trust Micro	3.00%	64.27%	0.46%

Correlation

The correlation between ACLO and IAUM is -0.11, 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	-0.11
Correlation (All Time) Calculated using the full available price history since Nov 19, 2024	-0.14

Return for Risk

ACLO vs. IAUM — Risk / Return Rank

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

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

IAUM

IAUM Risk / Return Rank: 32
IAUM Sharpe Ratio Rank: 33
IAUM Sortino Ratio Rank: 29
IAUM Omega Ratio Rank: 36
IAUM Calmar Ratio Rank: 34
IAUM Martin Ratio Rank: 29

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.

ACLO vs. IAUM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for TCW AAA CLO ETF (ACLO) and iShares Gold Trust Micro (IAUM). 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.

	ACLO	IAUM	Difference
Sharpe ratio: Return per unit of total volatility	7.29	1.24	+6.05
Sortino ratio: Return per unit of downside risk	14.85	1.63	+13.21
Omega ratio: Gain probability vs. loss probability	3.41	1.25	+2.16
Calmar ratio: Return relative to maximum drawdown	19.90	1.70	+18.20
Martin ratio: Return relative to average drawdown	164.37	4.22	+160.16
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACLO vs. IAUM - Sharpe Ratio Comparison

The current ACLO Sharpe Ratio is 7.29, which is higher than the IAUM Sharpe Ratio of 1.24. The chart below compares the historical Sharpe Ratios of ACLO and IAUM, 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

	ACLO	IAUM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	7.29	1.24	+6.05
Sharpe Ratio (All Time) Calculated using the full available price history	5.10	1.16	+3.94

Drawdowns

ACLO vs. IAUM - Drawdown Comparison

The maximum ACLO drawdown since its inception was -1.01%, smaller than the maximum IAUM drawdown of -20.87%. Use the drawdown chart below to compare losses from any high point for ACLO and IAUM.

Drawdown Indicators

	ACLO	IAUM	Difference
Max Drawdown Largest peak-to-trough decline	-1.01%	-20.87%	+19.86%
Max Drawdown (1Y) Largest decline over 1 year	-0.27%	-19.15%	+18.88%
Max Drawdown (3Y) Largest decline over 3 years	—	-19.15%	—
Current Drawdown Current decline from peak	0.00%	-17.68%	+17.68%
Average Drawdown Average peak-to-trough decline	-0.05%	-5.30%	+5.25%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.03%	7.70%	-7.67%

Volatility

ACLO vs. IAUM - Volatility Comparison

The current volatility for TCW AAA CLO ETF (ACLO) is 0.14%, while iShares Gold Trust Micro (IAUM) has a volatility of 5.50%. This indicates that ACLO experiences smaller price fluctuations and is considered to be less risky than IAUM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ACLO	IAUM	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.14%	5.50%	-5.36%
Volatility (6M) Calculated over the trailing 6-month period	0.57%	22.89%	-22.32%
Volatility (1Y) Calculated over the trailing 1-year period	0.73%	26.31%	-25.58%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.08%	17.86%	-16.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.08%	17.86%	-16.78%

ACLO vs. IAUM - Expense Ratio Comparison

ACLO has a 0.20% expense ratio, which is higher than IAUM's 0.09% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

ACLO vs. IAUM - Dividend Comparison

ACLO's dividend yield for the trailing twelve months is around 4.91%, while IAUM has not paid dividends to shareholders.

Position	TTM	2025	2024
ACLO TCW AAA CLO ETF	4.91%	4.87%	0.59%
IAUM iShares Gold Trust Micro	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both ACLO and IAUM in my portfolio?

ACLO and IAUM have a correlation of -0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACLO or IAUM?

IAUM has higher volatility (5.50%) compared to ACLO (0.14%). In terms of maximum drawdown, ACLO dropped -1.01% vs IAUM's -20.87%.

Which ETF is better, ACLO or IAUM?

On 1-year performance, IAUM leads with 32.42% vs 5.31% for ACLO. On fees, IAUM is cheaper at 0.09% per year. On volatility, ACLO has been the lower-risk option at 0.14%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ACLO or IAUM?

Over the 1-year period, IAUM has performed better with a 32.42% return vs 5.31%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ACLO or IAUM?

IAUM is cheaper with a 0.09% expense ratio, compared with 0.20% for ACLO.

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

ACLO has the higher dividend yield at 4.91%, compared with 0.00% for IAUM.

What is the main difference between ACLO and IAUM?

ACLO is categorized as CLO, while IAUM is Gold. They also come from different issuers: TCW and iShares. Their fees differ too: 0.20% for ACLO and 0.09% for IAUM.

Which has better risk-adjusted returns?

ACLO currently has the higher Sharpe Ratio (7.29 vs 1.24), 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.