MSII vs. BUCK

Last updated Jun 5, 2026

MSII (REX MSTR Growth & Income ETF) and BUCK (Simplify Treasury Option Income ETF) are both exchange-traded funds - MSII is a Leveraged Equities fund actively managed by REX, while BUCK is a Government Bonds fund actively managed by Simplify. Both are actively managed. Over the past year, MSII returned -67.78% vs 7.46% for BUCK. At a correlation of -0.04, they often move in opposite directions. MSII charges 0.99%/yr vs 0.35%/yr for BUCK.

Performance

MSII vs. BUCK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX MSTR Growth & Income ETF (MSII) and Simplify Treasury Option Income ETF (BUCK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MSII achieves a -18.95% return, which is significantly lower than BUCK's 1.99% return.

MSII

• 1D: 2.74%
• 1M: -31.87%
• YTD: -18.95%
• 6M: -32.47%
• 1Y: -67.78%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BUCK

• 1D: 0.09%
• 1M: 0.43%
• YTD: 1.99%
• 6M: 1.92%
• 1Y: 7.46%
• 3Y*: 5.27%
• 5Y*: —
• 10Y*: —

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

MSII vs. BUCK - Yearly Performance Comparison

	2026 (YTD)	2025
MSII REX MSTR Growth & Income ETF	-18.95%	-60.25%
BUCK Simplify Treasury Option Income ETF	1.99%	5.36%

Correlation

The correlation between MSII and BUCK 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 (All Time) Calculated using the full available price history since Jun 5, 2025	-0.04

Return for Risk

MSII vs. BUCK — Risk / Return Rank

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

BUCK

BUCK Risk / Return Rank: 85
BUCK Sharpe Ratio Rank: 76
BUCK Sortino Ratio Rank: 81
BUCK Omega Ratio Rank: 85
BUCK Calmar Ratio Rank: 91
BUCK Martin Ratio Rank: 95

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.

MSII vs. BUCK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX MSTR Growth & Income ETF (MSII) and Simplify Treasury Option Income ETF (BUCK). 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

	MSII	BUCK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	2.42	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.96	1.48	-2.43

Drawdowns

MSII vs. BUCK - Drawdown Comparison

The maximum MSII drawdown since its inception was -78.73%, which is greater than BUCK's maximum drawdown of -5.43%. Use the drawdown chart below to compare losses from any high point for MSII and BUCK.

Drawdown Indicators

	MSII	BUCK	Difference
Max Drawdown Largest peak-to-trough decline	-78.73%	-5.43%	-73.30%
Max Drawdown (1Y) Largest decline over 1 year	-78.73%	-1.31%	-77.42%
Max Drawdown (3Y) Largest decline over 3 years	—	-5.43%	—
Current Drawdown Current decline from peak	-73.68%	0.00%	-73.68%
Average Drawdown Average peak-to-trough decline	-46.27%	-0.49%	-45.78%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.25%	—

Volatility

Volatility by Period

	MSII	BUCK	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.70%	—
Volatility (6M) Calculated over the trailing 6-month period	—	1.52%	—
Volatility (1Y) Calculated over the trailing 1-year period	71.12%	3.14%	+67.98%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	71.12%	3.48%	+67.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	71.12%	3.48%	+67.64%

MSII vs. BUCK - Expense Ratio Comparison

MSII has a 0.99% expense ratio, which is higher than BUCK's 0.35% expense ratio.

Dividends

MSII vs. BUCK - Dividend Comparison

MSII's dividend yield for the trailing twelve months is around 88.00%, more than BUCK's 7.41% yield.

Position	TTM	2025	2024	2023	2022
BUCK Simplify Treasury Option Income ETF	7.41%	7.59%	8.84%	4.84%	0.59%
MSII REX MSTR Growth & Income ETF	88.00%	48.93%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MSII and BUCK in my portfolio?

MSII and BUCK 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 ETF is better, MSII or BUCK?

On 1-year performance, BUCK leads with 7.46% vs -67.78% for MSII. On fees, BUCK is cheaper at 0.35% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MSII or BUCK?

Over the 1-year period, BUCK has performed better with a 7.46% return vs -67.78%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MSII or BUCK?

BUCK is cheaper with a 0.35% expense ratio, compared with 0.99% for MSII.

Which ETF pays a higher dividend yield, MSII or BUCK?

MSII has the higher dividend yield at 88.00%, compared with 7.41% for BUCK.

What is the main difference between MSII and BUCK?

MSII is categorized as Leveraged Equities, while BUCK is Government Bonds. They also come from different issuers: REX and Simplify. Their fees differ too: 0.99% for MSII and 0.35% for BUCK.