PAPI vs. BUCK

Last updated Jun 5, 2026

PAPI (Parametric Equity Premium Income ETF) and BUCK (Simplify Treasury Option Income ETF) are both exchange-traded funds - PAPI is a Derivative Income fund actively managed by Morgan Stanley, while BUCK is a Government Bonds fund actively managed by Simplify. Both are actively managed. Over the past year, PAPI returned 13.61% vs 7.46% for BUCK. At a 0.12 correlation, their price movements are largely independent. PAPI charges 0.29%/yr vs 0.35%/yr for BUCK.

Performance

PAPI vs. BUCK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Parametric Equity Premium Income ETF (PAPI) 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, PAPI achieves a 6.49% return, which is significantly higher than BUCK's 1.99% return.

PAPI

• 1D: 0.64%
• 1M: 0.17%
• YTD: 6.49%
• 6M: 6.38%
• 1Y: 13.61%
• 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)

PAPI vs. BUCK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
PAPI Parametric Equity Premium Income ETF	6.49%	6.33%	8.90%	5.36%
BUCK Simplify Treasury Option Income ETF	1.99%	4.13%	7.25%	0.54%

Correlation

The correlation between PAPI and BUCK is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.13
Correlation (All Time) Calculated using the full available price history since Oct 20, 2023	0.12

PAPI vs. BUCK - Sectors Allocation Comparison

Sectors	PAPI	BUCK
Technology	12.5%	-
Consumer Cyclical	12.1%	-
Energy	11.6%	-
Healthcare	10.7%	-
Utilities	10.1%	-
Consumer Defensive	10.1%	-
Financial Services	9.9%	100.0%
Industrials	9.9%	-
Basic Materials	7.8%	-
Communication Services	5.4%	-
Real Estate	-	-

Return for Risk

PAPI vs. BUCK — Risk / Return Rank

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

PAPI

PAPI Risk / Return Rank: 38
PAPI Sharpe Ratio Rank: 37
PAPI Sortino Ratio Rank: 39
PAPI Omega Ratio Rank: 35
PAPI Calmar Ratio Rank: 41
PAPI Martin Ratio Rank: 35

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.

PAPI vs. BUCK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Parametric Equity Premium Income ETF (PAPI) 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.

	PAPI	BUCK	Difference
Sharpe ratio: Return per unit of total volatility	1.31	2.42	-1.11
Sortino ratio: Return per unit of downside risk	1.98	3.60	-1.61
Omega ratio: Gain probability vs. loss probability	1.23	1.51	-0.29
Calmar ratio: Return relative to maximum drawdown	1.99	5.73	-3.74
Martin ratio: Return relative to average drawdown	5.35	30.33	-24.98
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PAPI vs. BUCK - Sharpe Ratio Comparison

The current PAPI Sharpe Ratio is 1.31, which is lower than the BUCK Sharpe Ratio of 2.42. The chart below compares the historical Sharpe Ratios of PAPI 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.

Sharpe Ratios by Period

	PAPI	BUCK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.31	2.42	-1.11
Sharpe Ratio (All Time) Calculated using the full available price history	0.90	1.48	-0.58

Drawdowns

PAPI vs. BUCK - Drawdown Comparison

The maximum PAPI drawdown since its inception was -14.27%, which is greater than BUCK's maximum drawdown of -5.43%. Use the drawdown chart below to compare losses from any high point for PAPI and BUCK.

Drawdown Indicators

	PAPI	BUCK	Difference
Max Drawdown Largest peak-to-trough decline	-14.27%	-5.43%	-8.84%
Max Drawdown (1Y) Largest decline over 1 year	-6.86%	-1.31%	-5.55%
Max Drawdown (3Y) Largest decline over 3 years	—	-5.43%	—
Current Drawdown Current decline from peak	-4.45%	0.00%	-4.45%
Average Drawdown Average peak-to-trough decline	-2.73%	-0.49%	-2.24%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.55%	0.25%	+2.30%

Volatility

PAPI vs. BUCK - Volatility Comparison

Parametric Equity Premium Income ETF (PAPI) has a higher volatility of 2.20% compared to Simplify Treasury Option Income ETF (BUCK) at 0.70%. This indicates that PAPI'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

	PAPI	BUCK	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.20%	0.70%	+1.50%
Volatility (6M) Calculated over the trailing 6-month period	7.02%	1.52%	+5.50%
Volatility (1Y) Calculated over the trailing 1-year period	10.47%	3.14%	+7.33%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.76%	3.48%	+8.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.76%	3.48%	+8.28%

PAPI vs. BUCK - Expense Ratio Comparison

PAPI has a 0.29% expense ratio, which is lower than BUCK's 0.35% expense ratio.

Dividends

PAPI vs. BUCK - Dividend Comparison

PAPI's dividend yield for the trailing twelve months is around 7.57%, 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%
PAPI Parametric Equity Premium Income ETF	7.57%	7.59%	7.07%	1.45%	0.00%

Frequently Asked Questions

Can I hold both PAPI and BUCK in my portfolio?

PAPI and BUCK have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PAPI or BUCK?

PAPI has higher volatility (2.20%) compared to BUCK (0.70%). In terms of maximum drawdown, PAPI dropped -14.27% vs BUCK's -5.43%.

Which ETF is better, PAPI or BUCK?

On 1-year performance, PAPI leads with 13.61% vs 7.46% for BUCK. On fees, PAPI is cheaper at 0.29% per year. On volatility, BUCK has been the lower-risk option at 0.70%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, PAPI or BUCK?

Over the 1-year period, PAPI has performed better with a 13.61% return vs 7.46%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PAPI or BUCK?

PAPI is cheaper with a 0.29% expense ratio, compared with 0.35% for BUCK.

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

PAPI has the higher dividend yield at 7.57%, compared with 7.41% for BUCK.

What is the main difference between PAPI and BUCK?

PAPI is categorized as Derivative Income, while BUCK is Government Bonds. They also come from different issuers: Morgan Stanley and Simplify. Their fees differ too: 0.29% for PAPI and 0.35% for BUCK.

Which has better risk-adjusted returns?

BUCK currently has the higher Sharpe Ratio (2.42 vs 1.31), 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.