YMAX vs. BUCK

Last updated Aug 4, 2026

YMAX (YieldMax Universe Fund of Option Income ETFs) and BUCK (Simplify Treasury Option Income ETF) are both exchange-traded funds - YMAX is a Derivative Income fund actively managed by YieldMax, while BUCK is a Government Bonds fund actively managed by Simplify. Both are actively managed. Over the past year, YMAX returned -2.39% vs 5.54% for BUCK. Their 0.07 correlation means their historical movements had little consistent relationship. YMAX charges 1.33%/yr vs 0.35%/yr for BUCK.

Performance

YMAX vs. BUCK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in YieldMax Universe Fund of Option Income ETFs (YMAX) 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, YMAX achieves a 0.68% return, which is significantly lower than BUCK's 2.60% return.

YMAX

• 1D: 1.76%
• 1M: -1.93%
• 6M: 5.27%
• YTD: 0.68%
• 1Y: -2.39%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 12.68%

BUCK

• 1D: 0.17%
• 1M: 0.34%
• 6M: 1.97%
• YTD: 2.60%
• 1Y: 5.54%
• 3Y*: 5.24%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 5.10%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
BUCK Simplify Treasury Option Income ETF	$3.71M	$3.67M	$3.97M
YMAX YieldMax Universe Fund of Option Income ETFs	$9.31M	$11.31M	$14.54M

YMAX vs. BUCK - Yearly Performance Comparison

	2026 (YTD)	2025	2024
YMAX YieldMax Universe Fund of Option Income ETFs	0.68%	6.04%	26.90%
BUCK Simplify Treasury Option Income ETF	2.60%	4.13%	6.93%

Correlation

The correlation between YMAX and BUCK is 0.06, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.06
Correlation (All Time) Calculated using the full available price history since Jan 17, 2024	0.07

Return for Risk

YMAX vs. BUCK — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

YMAX

YMAX Risk / Return Rank: 10
YMAX Sharpe Ratio Rank: 10
YMAX Sortino Ratio Rank: 10
YMAX Omega Ratio Rank: 10
YMAX Calmar Ratio Rank: 10
YMAX Martin Ratio Rank: 10

BUCK

BUCK Risk / Return Rank: 93
BUCK Sharpe Ratio Rank: 90
BUCK Sortino Ratio Rank: 90
BUCK Omega Ratio Rank: 92
BUCK Calmar Ratio Rank: 96
BUCK Martin Ratio Rank: 97

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

YMAX vs. BUCK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for YieldMax Universe Fund of Option Income ETFs (YMAX) 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.

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.

	YMAX	BUCK	Difference
Sharpe ratio: Return per unit of total volatility	-0.10	2.26	-2.36
Sortino ratio: Return per unit of downside risk	0.03	3.23	-3.20
Omega ratio: Gain probability vs. loss probability	1.00	1.47	-0.47
Calmar ratio: Return relative to maximum drawdown	-0.09	6.65	-6.74
Martin ratio: Return relative to average drawdown	-0.20	31.30	-31.51

YMAX vs. BUCK - Sharpe Ratio Comparison

The current YMAX Sharpe Ratio is -0.10, which is lower than the BUCK Sharpe Ratio of 2.26. The chart below compares the historical Sharpe Ratios of YMAX and BUCK, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

YMAX vs. BUCK - Drawdown Comparison

The maximum YMAX drawdown since its inception was -26.13%, which is greater than BUCK's maximum drawdown of -5.43%. Use the drawdown chart below to compare losses from any high point for YMAX and BUCK.

Drawdown Indicators

	YMAX	BUCK	Difference
Max Drawdown Largest peak-to-trough decline	-26.13%	-5.43%	-20.70%
Max Drawdown (1Y) Largest decline over 1 year	-26.13%	-0.84%	-25.29%
Max Drawdown (3Y) Largest decline over 3 years	—	-5.43%	—
Current Drawdown Current decline from peak	-10.75%	0.00%	-10.75%
Average Drawdown Average peak-to-trough decline	-6.57%	-0.47%	-6.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.72%	0.18%	+11.54%

Volatility

YMAX vs. BUCK - Volatility Comparison

YieldMax Universe Fund of Option Income ETFs (YMAX) has a higher volatility of 6.62% compared to Simplify Treasury Option Income ETF (BUCK) at 0.42%. This indicates that YMAX's price experiences larger fluctuations and is considered to be riskier than BUCK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	YMAX	BUCK	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.62%	0.42%	+6.20%
Volatility (6M) Calculated over the trailing 6-month period	20.20%	1.25%	+18.95%
Volatility (1Y) Calculated over the trailing 1-year period	24.15%	2.47%	+21.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.51%	3.42%	+20.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.51%	3.42%	+20.09%

YMAX vs. BUCK - Expense Ratio Comparison

YMAX has a 1.33% expense ratio, which is higher than BUCK's 0.35% expense ratio.

Dividends

YMAX vs. BUCK - Dividend Comparison

YMAX's dividend yield for the trailing twelve months is around 71.74%, more than BUCK's 7.19% yield.

Position	TTM	2025	2024	2023	2022
BUCK Simplify Treasury Option Income ETF	7.19%	7.59%	8.84%	4.84%	0.59%
YMAX YieldMax Universe Fund of Option Income ETFs	71.74%	78.70%	44.20%	0.00%	0.00%

Frequently Asked Questions

Can I hold both YMAX and BUCK in my portfolio?

YMAX and BUCK have a correlation of 0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, YMAX or BUCK?

YMAX has higher volatility (6.62%) compared to BUCK (0.42%). In terms of maximum drawdown, YMAX dropped -26.13% vs BUCK's -5.43%.

Which ETF is better, YMAX or BUCK?

On 1-year performance, BUCK leads with 5.54% vs -2.39% for YMAX. On fees, BUCK is cheaper at 0.35% per year. On volatility, BUCK has been the lower-risk option at 0.42%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, YMAX or BUCK?

Over the 1-year period, BUCK has performed better with a 5.54% return vs -2.39%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, YMAX or BUCK?

BUCK is cheaper with a 0.35% expense ratio, compared with 1.33% for YMAX.

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

YMAX has the higher dividend yield at 71.74%, compared with 7.19% for BUCK.

What is the main difference between YMAX and BUCK?

YMAX is categorized as Derivative Income, while BUCK is Government Bonds. They also come from different issuers: YieldMax and Simplify. Their fees differ too: 1.33% for YMAX and 0.35% for BUCK.

Which has better risk-adjusted returns?

BUCK currently has the higher Sharpe Ratio (2.26 vs -0.10), 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.