KMAR vs. APRB

Last updated Jun 4, 2026

KMAR (Innovator U.S. Small Cap Power Buffer ETF - March) and APRB (Aptus April Buffer ETF) are both Defined Outcome funds. KMAR is passively managed, while APRB is actively managed. A 0.77 correlation means they provide meaningful diversification when combined. KMAR charges 0.79%/yr vs 0.25%/yr for APRB.

Performance

KMAR vs. APRB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Innovator U.S. Small Cap Power Buffer ETF - March (KMAR) and Aptus April Buffer ETF (APRB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, KMAR achieves a 9.54% return, which is significantly higher than APRB's 4.77% return.

KMAR

• 1D: -0.70%
• 1M: 1.55%
• YTD: 9.54%
• 6M: 10.29%
• 1Y: 23.24%
• 3Y*: —
• 5Y*: —
• 10Y*: —

APRB

• 1D: -0.11%
• 1M: 1.69%
• YTD: 4.77%
• 6M: 5.32%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

KMAR vs. APRB - Yearly Performance Comparison

	2026 (YTD)	2025
KMAR Innovator U.S. Small Cap Power Buffer ETF - March	9.54%	2.08%
APRB Aptus April Buffer ETF	4.77%	2.48%

Correlation

The correlation between KMAR and APRB is 0.77, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 15, 2025	0.77

Return for Risk

KMAR vs. APRB — Risk / Return Rank

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

KMAR

KMAR Risk / Return Rank: 83
KMAR Sharpe Ratio Rank: 79
KMAR Sortino Ratio Rank: 84
KMAR Omega Ratio Rank: 80
KMAR Calmar Ratio Rank: 86
KMAR Martin Ratio Rank: 89

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.

KMAR vs. APRB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Innovator U.S. Small Cap Power Buffer ETF - March (KMAR) and Aptus April Buffer ETF (APRB). 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.

	KMAR	APRB	Difference
Sharpe ratio: Return per unit of total volatility	2.52	—	—
Sortino ratio: Return per unit of downside risk	3.70	—	—
Omega ratio: Gain probability vs. loss probability	1.47	—	—
Calmar ratio: Return relative to maximum drawdown	4.77	—	—
Martin ratio: Return relative to average drawdown	19.58	—	—
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

Sharpe Ratios by Period

	KMAR	APRB	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.52	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.59	2.00	-0.42

Drawdowns

KMAR vs. APRB - Drawdown Comparison

The maximum KMAR drawdown since its inception was -10.06%, which is greater than APRB's maximum drawdown of -4.59%. Use the drawdown chart below to compare losses from any high point for KMAR and APRB.

Drawdown Indicators

	KMAR	APRB	Difference
Max Drawdown Largest peak-to-trough decline	-10.06%	-4.59%	-5.47%
Max Drawdown (1Y) Largest decline over 1 year	-4.89%	—	—
Current Drawdown Current decline from peak	-0.70%	-0.11%	-0.59%
Average Drawdown Average peak-to-trough decline	-1.09%	-0.74%	-0.35%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.19%	—	—

Volatility

Volatility by Period

	KMAR	APRB	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.55%	—	—
Volatility (6M) Calculated over the trailing 6-month period	6.32%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	9.32%	5.98%	+3.34%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.08%	5.98%	+6.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.08%	5.98%	+6.10%

KMAR vs. APRB - Expense Ratio Comparison

KMAR has a 0.79% expense ratio, which is higher than APRB's 0.25% expense ratio.

Dividends

KMAR vs. APRB - Dividend Comparison

Neither KMAR nor APRB has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both KMAR and APRB in my portfolio?

KMAR and APRB have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, KMAR or APRB?

On fees, APRB is cheaper at 0.25% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, KMAR or APRB?

APRB is cheaper with a 0.25% expense ratio, compared with 0.79% for KMAR.

Which ETF pays a higher dividend yield, KMAR or APRB?

KMAR and APRB have nearly identical dividend yields, around 0.00%.

What is the main difference between KMAR and APRB?

They also come from different issuers: Innovator and Aptus Capital Advisors. Their fees differ too: 0.79% for KMAR and 0.25% for APRB.