XLFI vs. BUCK

Last updated Jul 4, 2026

XLFI (State Street Financial Select Sector SPDR Premium Income ETF) and BUCK (Simplify Treasury Option Income ETF) are both exchange-traded funds - XLFI is a Derivative Income fund actively managed by State Street, while BUCK is a Government Bonds fund actively managed by Simplify. Both are actively managed. At a 0.09 correlation, their price movements are largely independent. Both charge a 0.35% expense ratio.

Performance

XLFI vs. BUCK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street Financial Select Sector SPDR Premium Income ETF (XLFI) 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, XLFI achieves a 1.06% return, which is significantly lower than BUCK's 2.25% return.

XLFI

• 1D: 0.94%
• 1M: 6.35%
• 6M: 0.96%
• YTD: 1.06%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

BUCK

• 1D: 0.04%
• 1M: 0.34%
• 6M: 2.08%
• YTD: 2.25%
• 1Y: 6.16%
• 3Y*: 5.25%
• 5Y*: —
• 10Y*: —

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

XLFI vs. BUCK - Yearly Performance Comparison

	2026 (YTD)	2025
XLFI State Street Financial Select Sector SPDR Premium Income ETF	1.06%	5.40%
BUCK Simplify Treasury Option Income ETF	2.25%	3.43%

Correlation

The correlation between XLFI and BUCK is 0.09, 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 Jul 30, 2025	0.09

Return for Risk

XLFI vs. BUCK — Risk / Return Rank

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

XLFI

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

BUCK

BUCK Risk / Return Rank: 88
BUCK Sharpe Ratio Rank: 82
BUCK Sortino Ratio Rank: 85
BUCK Omega Ratio Rank: 89
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.

XLFI vs. BUCK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street Financial Select Sector SPDR Premium Income ETF (XLFI) 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.

	XLFI	BUCK	Difference
Sharpe ratio: Return per unit of total volatility	—	2.13	—
Sortino ratio: Return per unit of downside risk	—	3.12	—
Omega ratio: Gain probability vs. loss probability	—	1.45	—
Calmar ratio: Return relative to maximum drawdown	—	4.77	—
Martin ratio: Return relative to average drawdown	—	25.80	—

Drawdowns

XLFI vs. BUCK - Drawdown Comparison

The maximum XLFI drawdown since its inception was -11.89%, which is greater than BUCK's maximum drawdown of -5.43%. Use the drawdown chart below to compare losses from any high point for XLFI and BUCK.

Drawdown Indicators

	XLFI	BUCK	Difference
Max Drawdown Largest peak-to-trough decline	-11.89%	-5.43%	-6.46%
Max Drawdown (1Y) Largest decline over 1 year	—	-1.31%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-5.43%	—
Current Drawdown Current decline from peak	-0.62%	-0.04%	-0.58%
Average Drawdown Average peak-to-trough decline	-3.24%	-0.48%	-2.76%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.24%	—

Volatility

Volatility by Period

	XLFI	BUCK	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.37%	—
Volatility (6M) Calculated over the trailing 6-month period	—	1.34%	—
Volatility (1Y) Calculated over the trailing 1-year period	12.05%	2.92%	+9.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.05%	3.45%	+8.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.05%	3.45%	+8.60%

XLFI vs. BUCK - Expense Ratio Comparison

Both XLFI and BUCK have an expense ratio of 0.35%.

Dividends

XLFI vs. BUCK - Dividend Comparison

XLFI's dividend yield for the trailing twelve months is around 11.52%, more than BUCK's 7.30% yield.

Position	TTM	2025	2024	2023	2022
BUCK Simplify Treasury Option Income ETF	7.30%	7.59%	8.84%	4.84%	0.59%
XLFI State Street Financial Select Sector SPDR Premium Income ETF	11.52%	5.57%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both XLFI and BUCK in my portfolio?

XLFI and BUCK have a correlation of 0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, XLFI or BUCK?

Both ETFs have the same 0.35% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, XLFI or BUCK?

XLFI and BUCK have the same expense ratio: 0.35% per year.

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

XLFI has the higher dividend yield at 11.52%, compared with 7.30% for BUCK.

What is the main difference between XLFI and BUCK?

XLFI is categorized as Derivative Income, while BUCK is Government Bonds. They also come from different issuers: State Street and Simplify.