MSTW vs. ACII

Last updated Jun 3, 2026

MSTW (Roundhill MSTR WeeklyPay ETF) and ACII (Innovator Index Autocallable Income Strategy ETF) are both Derivative Income funds. Both are actively managed. With a 1.00 correlation, they move nearly in lockstep. MSTW charges 0.99%/yr vs 0.79%/yr for ACII.

Performance

MSTW vs. ACII - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Roundhill MSTR WeeklyPay ETF (MSTW) and Innovator Index Autocallable Income Strategy ETF (ACII). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

MSTW

• 1D: -10.09%
• 1M: -27.42%
• YTD: -16.42%
• 6M: -33.03%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

ACII

• 1D: -0.21%
• 1M: —
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

MSTW vs. ACII - Yearly Performance Comparison

	2026 (YTD)
MSTW Roundhill MSTR WeeklyPay ETF	-12.39%
ACII Innovator Index Autocallable Income Strategy ETF	-0.14%

Correlation

The correlation between MSTW and ACII is 1.00 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (All Time) Calculated using the full available price history since May 29, 2026	1.00

Return for Risk

MSTW vs. ACII - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Roundhill MSTR WeeklyPay ETF (MSTW) and Innovator Index Autocallable Income Strategy ETF (ACII). 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.

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

Sharpe Ratios by Period

	MSTW	ACII	Difference
Sharpe Ratio (All Time) Calculated using the full available price history	-0.92	-4.37	+3.45

Drawdowns

MSTW vs. ACII - Drawdown Comparison

The maximum MSTW drawdown since its inception was -81.85%, which is greater than ACII's maximum drawdown of -0.32%. Use the drawdown chart below to compare losses from any high point for MSTW and ACII.

Drawdown Indicators

	MSTW	ACII	Difference
Max Drawdown Largest peak-to-trough decline	-81.85%	-0.32%	-81.53%
Current Drawdown Current decline from peak	-76.11%	-0.32%	-75.79%
Average Drawdown Average peak-to-trough decline	-54.38%	-0.14%	-54.24%

Volatility

Volatility by Period

	MSTW	ACII	Difference
Volatility (1Y) Calculated over the trailing 1-year period	88.79%	3.15%	+85.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	88.79%	3.15%	+85.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	88.79%	3.15%	+85.64%

MSTW vs. ACII - Expense Ratio Comparison

MSTW has a 0.99% expense ratio, which is higher than ACII's 0.79% expense ratio.

Dividends

MSTW vs. ACII - Dividend Comparison

MSTW's dividend yield for the trailing twelve months is around 219.17%, more than ACII's 0.73% yield.

Position	TTM	2025
ACII Innovator Index Autocallable Income Strategy ETF	0.73%	0.00%
MSTW Roundhill MSTR WeeklyPay ETF	219.17%	106.94%

Frequently Asked Questions

Can I hold both MSTW and ACII in my portfolio?

With a correlation of 1.00, MSTW and ACII move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, MSTW or ACII?

On fees, ACII is cheaper at 0.79% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MSTW or ACII?

ACII is cheaper with a 0.79% expense ratio, compared with 0.99% for MSTW.

Which ETF pays a higher dividend yield, MSTW or ACII?

MSTW has the higher dividend yield at 219.17%, compared with 0.73% for ACII.

What is the main difference between MSTW and ACII?

They also come from different issuers: Roundhill and Innovator. Their fees differ too: 0.99% for MSTW and 0.79% for ACII.