ISEP vs. OCTB

Last updated Jun 24, 2026

ISEP (Innovator International Developed Power Buffer ETF - September) and OCTB (Aptus October Buffer ETF) are both Defined Outcome funds. Both are actively managed. Their correlation of 0.80 suggests significant overlap in exposure. ISEP charges 0.85%/yr vs 0.25%/yr for OCTB.

Performance

ISEP vs. OCTB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Innovator International Developed Power Buffer ETF - September (ISEP) and Aptus October Buffer ETF (OCTB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both investments are quite close, with ISEP having a 5.43% return and OCTB slightly higher at 5.52%.

ISEP

• 1D: -0.83%
• 1M: 0.66%
• YTD: 5.43%
• 6M: 5.35%
• 1Y: 13.86%
• 3Y*: —
• 5Y*: —
• 10Y*: —

OCTB

• 1D: -0.56%
• 1M: 0.00%
• YTD: 5.52%
• 6M: 5.21%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

ISEP vs. OCTB - Yearly Performance Comparison

	2026 (YTD)	2025
ISEP Innovator International Developed Power Buffer ETF - September	5.43%	2.76%
OCTB Aptus October Buffer ETF	5.52%	2.37%

Correlation

The correlation between ISEP and OCTB is 0.80, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 14, 2025	0.80

Return for Risk

ISEP vs. OCTB — Risk / Return Rank

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

ISEP

ISEP Risk / Return Rank: 53
ISEP Sharpe Ratio Rank: 50
ISEP Sortino Ratio Rank: 52
ISEP Omega Ratio Rank: 50
ISEP Calmar Ratio Rank: 57
ISEP Martin Ratio Rank: 57

OCTB

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

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.

ISEP vs. OCTB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Innovator International Developed Power Buffer ETF - September (ISEP) and Aptus October Buffer ETF (OCTB). 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.

	ISEP	OCTB	Difference
Sharpe ratio: Return per unit of total volatility	1.57	—	—
Sortino ratio: Return per unit of downside risk	2.31	—	—
Omega ratio: Gain probability vs. loss probability	1.29	—	—
Calmar ratio: Return relative to maximum drawdown	2.54	—	—
Martin ratio: Return relative to average drawdown	9.13	—	—

Drawdowns

ISEP vs. OCTB - Drawdown Comparison

The maximum ISEP drawdown since its inception was -7.36%, which is greater than OCTB's maximum drawdown of -4.79%. Use the drawdown chart below to compare losses from any high point for ISEP and OCTB.

Drawdown Indicators

	ISEP	OCTB	Difference
Max Drawdown Largest peak-to-trough decline	-7.36%	-4.79%	-2.57%
Max Drawdown (1Y) Largest decline over 1 year	-5.48%	—	—
Current Drawdown Current decline from peak	-0.83%	-0.82%	-0.01%
Average Drawdown Average peak-to-trough decline	-1.53%	-0.69%	-0.84%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.52%	—	—

Volatility

Volatility by Period

	ISEP	OCTB	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.40%	—	—
Volatility (6M) Calculated over the trailing 6-month period	6.49%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	8.88%	7.26%	+1.62%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	9.53%	7.26%	+2.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.53%	7.26%	+2.27%

ISEP vs. OCTB - Expense Ratio Comparison

ISEP has a 0.85% expense ratio, which is higher than OCTB's 0.25% expense ratio.

Dividends

ISEP vs. OCTB - Dividend Comparison

Neither ISEP nor OCTB has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both ISEP and OCTB in my portfolio?

ISEP and OCTB have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, ISEP or OCTB?

On fees, OCTB 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, ISEP or OCTB?

OCTB is cheaper with a 0.25% expense ratio, compared with 0.85% for ISEP.

Which ETF pays a higher dividend yield, ISEP or OCTB?

ISEP and OCTB have nearly identical dividend yields, around 0.00%.

What is the main difference between ISEP and OCTB?

They also come from different issuers: Innovator and Aptus Capital Advisors. Their fees differ too: 0.85% for ISEP and 0.25% for OCTB.