KMLM vs. IDUB

Last updated Jun 3, 2026

KMLM (KFA Mount Lucas Index Strategy ETF) and IDUB (Aptus International Enhanced Yield ETF) are both Long-Short funds. Both are actively managed. Over the past 3 years, KMLM returned -0.53%/yr vs 18.42%/yr for IDUB. At a correlation of -0.13, they often move in opposite directions. KMLM charges 0.90%/yr vs 0.45%/yr for IDUB.

Performance

KMLM vs. IDUB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in KFA Mount Lucas Index Strategy ETF (KMLM) and Aptus International Enhanced Yield ETF (IDUB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, KMLM achieves a 10.60% return, which is significantly lower than IDUB's 17.21% return.

KMLM

• 1D: 0.53%
• 1M: -2.15%
• YTD: 10.60%
• 6M: 13.52%
• 1Y: 12.84%
• 3Y*: -0.53%
• 5Y*: 4.37%
• 10Y*: —

IDUB

• 1D: 0.82%
• 1M: 5.30%
• YTD: 17.21%
• 6M: 20.28%
• 1Y: 34.65%
• 3Y*: 18.42%
• 5Y*: —
• 10Y*: —

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

KMLM vs. IDUB - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
KMLM KFA Mount Lucas Index Strategy ETF	10.60%	-2.98%	-1.69%	-5.66%	30.61%	-0.45%
IDUB Aptus International Enhanced Yield ETF	17.21%	27.53%	6.12%	9.07%	-19.79%	-1.25%

Correlation

The correlation between KMLM and IDUB is 0.04, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.04
Correlation (3Y) Calculated over the trailing 3-year period	-0.03
Correlation (All Time) Calculated using the full available price history since Jul 26, 2021	-0.13

The correlation between KMLM and IDUB shifts across timeframes, from -0.13 (all time) to 0.04 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

KMLM vs. IDUB — Risk / Return Rank

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

KMLM

KMLM Risk / Return Rank: 36
KMLM Sharpe Ratio Rank: 31
KMLM Sortino Ratio Rank: 30
KMLM Omega Ratio Rank: 31
KMLM Calmar Ratio Rank: 44
KMLM Martin Ratio Rank: 44

IDUB

IDUB Risk / Return Rank: 66
IDUB Sharpe Ratio Rank: 67
IDUB Sortino Ratio Rank: 67
IDUB Omega Ratio Rank: 67
IDUB Calmar Ratio Rank: 61
IDUB Martin Ratio Rank: 67

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.

KMLM vs. IDUB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for KFA Mount Lucas Index Strategy ETF (KMLM) and Aptus International Enhanced Yield ETF (IDUB). 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.

	KMLM	IDUB	Difference
Sharpe ratio Return per unit of total volatility	1.13	2.25	-1.13
Sortino ratio Return per unit of downside risk	1.59	3.14	-1.56
Omega ratio Gain probability vs. loss probability	1.20	1.41	-0.21
Calmar ratio Return relative to maximum drawdown	2.22	3.11	-0.89
Martin ratio Return relative to average drawdown	7.31	12.42	-5.11
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

KMLM vs. IDUB - Sharpe Ratio Comparison

The current KMLM Sharpe Ratio is 1.13, which is lower than the IDUB Sharpe Ratio of 2.25. The chart below compares the historical Sharpe Ratios of KMLM and IDUB, 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

	KMLM	IDUB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.13	2.25	-1.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.30	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.49	0.46	+0.03

Drawdowns

KMLM vs. IDUB - Drawdown Comparison

The maximum KMLM drawdown since its inception was -27.47%, smaller than the maximum IDUB drawdown of -29.20%. Use the drawdown chart below to compare losses from any high point for KMLM and IDUB.

Drawdown Indicators

	KMLM	IDUB	Difference
Max Drawdown Largest peak-to-trough decline	-27.47%	-29.20%	+1.73%
Max Drawdown (1Y) Largest decline over 1 year	-6.30%	-11.46%	+5.16%
Max Drawdown (3Y) Largest decline over 3 years	-22.28%	-12.88%	-9.40%
Max Drawdown (5Y) Largest decline over 5 years	-27.47%	—	—
Current Drawdown Current decline from peak	-13.76%	0.00%	-13.76%
Average Drawdown Average peak-to-trough decline	-12.74%	-11.17%	-1.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.91%	2.87%	-0.96%

Volatility

KMLM vs. IDUB - Volatility Comparison

The current volatility for KFA Mount Lucas Index Strategy ETF (KMLM) is 4.49%, while Aptus International Enhanced Yield ETF (IDUB) has a volatility of 5.17%. This indicates that KMLM experiences smaller price fluctuations and is considered to be less risky than IDUB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	KMLM	IDUB	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.49%	5.17%	-0.68%
Volatility (6M) Calculated over the trailing 6-month period	9.64%	12.91%	-3.27%
Volatility (1Y) Calculated over the trailing 1-year period	11.46%	15.45%	-3.99%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.62%	14.64%	-0.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	14.74%	14.64%	+0.10%

KMLM vs. IDUB - Expense Ratio Comparison

KMLM has a 0.90% expense ratio, which is higher than IDUB's 0.45% expense ratio.

Dividends

KMLM vs. IDUB - Dividend Comparison

KMLM's dividend yield for the trailing twelve months is around 4.54%, less than IDUB's 4.93% yield.

Position	TTM	2025	2024	2023	2022	2021
IDUB Aptus International Enhanced Yield ETF	4.93%	4.90%	5.64%	3.71%	2.62%	1.38%
KMLM KFA Mount Lucas Index Strategy ETF	4.54%	5.02%	0.82%	0.00%	13.22%	6.94%

Frequently Asked Questions

Can I hold both KMLM and IDUB in my portfolio?

KMLM and IDUB have a correlation of 0.04, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, KMLM or IDUB?

IDUB has higher volatility (5.17%) compared to KMLM (4.49%). In terms of maximum drawdown, KMLM dropped -27.47% vs IDUB's -29.20%.

Which ETF is better, KMLM or IDUB?

On 3-year performance, IDUB leads with 18.42% vs -0.53% for KMLM. On fees, IDUB is cheaper at 0.45% per year. On volatility, KMLM has been the lower-risk option at 4.49%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, KMLM or IDUB?

Over the 3-year period, IDUB has performed better with a 18.42% return vs -0.53%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, KMLM or IDUB?

IDUB is cheaper with a 0.45% expense ratio, compared with 0.90% for KMLM.

Which ETF pays a higher dividend yield, KMLM or IDUB?

IDUB has the higher dividend yield at 4.93%, compared with 4.54% for KMLM.

What is the main difference between KMLM and IDUB?

They also come from different issuers: CICC and Aptus. Their fees differ too: 0.90% for KMLM and 0.45% for IDUB.

Which has better risk-adjusted returns?

IDUB currently has the higher Sharpe Ratio (2.25 vs 1.13), 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.