SPBU vs. FBUF

Last updated Jun 3, 2026

SPBU (AllianzIM Buffer15 Uncapped Allocation ETF) and FBUF (Fidelity Dynamic Buffered Equity ETF) are both Defined Outcome funds. Both are actively managed. Over the past year, SPBU returned 21.80% vs 19.61% for FBUF. Their correlation of 0.92 suggests significant overlap in exposure. SPBU charges 0.79%/yr vs 0.48%/yr for FBUF.

Performance

SPBU vs. FBUF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AllianzIM Buffer15 Uncapped Allocation ETF (SPBU) and Fidelity Dynamic Buffered Equity ETF (FBUF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPBU achieves a 8.95% return, which is significantly higher than FBUF's 5.32% return.

SPBU

• 1D: 0.10%
• 1M: 4.89%
• YTD: 8.95%
• 6M: 8.80%
• 1Y: 21.80%
• 3Y*: —
• 5Y*: —
• 10Y*: —

FBUF

• 1D: -0.12%
• 1M: 2.85%
• YTD: 5.32%
• 6M: 6.28%
• 1Y: 19.61%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SPBU vs. FBUF - Yearly Performance Comparison

	2026 (YTD)	2025
SPBU AllianzIM Buffer15 Uncapped Allocation ETF	8.95%	13.85%
FBUF Fidelity Dynamic Buffered Equity ETF	5.32%	16.12%

Correlation

The correlation between SPBU and FBUF is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.90
Correlation (All Time) Calculated using the full available price history since Mar 7, 2025	0.92

The correlation between SPBU and FBUF has been stable across timeframes, ranging from 0.90 to 0.92 - a consistent structural relationship.

Return for Risk

SPBU vs. FBUF — Risk / Return Rank

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

SPBU

SPBU Risk / Return Rank: 68
SPBU Sharpe Ratio Rank: 69
SPBU Sortino Ratio Rank: 71
SPBU Omega Ratio Rank: 68
SPBU Calmar Ratio Rank: 62
SPBU Martin Ratio Rank: 71

FBUF

FBUF Risk / Return Rank: 79
FBUF Sharpe Ratio Rank: 80
FBUF Sortino Ratio Rank: 79
FBUF Omega Ratio Rank: 86
FBUF Calmar Ratio Rank: 70
FBUF Martin Ratio Rank: 80

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.

SPBU vs. FBUF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AllianzIM Buffer15 Uncapped Allocation ETF (SPBU) and Fidelity Dynamic Buffered Equity ETF (FBUF). 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.

	SPBU	FBUF	Difference
Sharpe ratio Return per unit of total volatility	2.32	2.63	-0.31
Sortino ratio Return per unit of downside risk	3.32	3.55	-0.23
Omega ratio Gain probability vs. loss probability	1.42	1.53	-0.11
Calmar ratio Return relative to maximum drawdown	3.12	3.51	-0.39
Martin ratio Return relative to average drawdown	13.63	15.68	-2.05
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPBU vs. FBUF - Sharpe Ratio Comparison

The current SPBU Sharpe Ratio is 2.32, which is comparable to the FBUF Sharpe Ratio of 2.63. The chart below compares the historical Sharpe Ratios of SPBU and FBUF, 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

	SPBU	FBUF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.32	2.63	-0.31
Sharpe Ratio (All Time) Calculated using the full available price history	1.64	1.47	+0.17

Drawdowns

SPBU vs. FBUF - Drawdown Comparison

The maximum SPBU drawdown since its inception was -8.30%, smaller than the maximum FBUF drawdown of -11.09%. Use the drawdown chart below to compare losses from any high point for SPBU and FBUF.

Drawdown Indicators

	SPBU	FBUF	Difference
Max Drawdown Largest peak-to-trough decline	-8.30%	-11.09%	+2.79%
Max Drawdown (1Y) Largest decline over 1 year	-7.10%	-5.61%	-1.49%
Current Drawdown Current decline from peak	0.00%	-0.22%	+0.22%
Average Drawdown Average peak-to-trough decline	-1.25%	-1.38%	+0.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.62%	1.25%	+0.37%

Volatility

SPBU vs. FBUF - Volatility Comparison

AllianzIM Buffer15 Uncapped Allocation ETF (SPBU) has a higher volatility of 2.55% compared to Fidelity Dynamic Buffered Equity ETF (FBUF) at 1.11%. This indicates that SPBU's price experiences larger fluctuations and is considered to be riskier than FBUF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPBU	FBUF	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.55%	1.11%	+1.44%
Volatility (6M) Calculated over the trailing 6-month period	6.94%	5.37%	+1.57%
Volatility (1Y) Calculated over the trailing 1-year period	9.44%	7.49%	+1.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.65%	9.55%	+2.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.65%	9.55%	+2.10%

SPBU vs. FBUF - Expense Ratio Comparison

SPBU has a 0.79% expense ratio, which is higher than FBUF's 0.48% expense ratio.

Dividends

SPBU vs. FBUF - Dividend Comparison

SPBU has not paid dividends to shareholders, while FBUF's dividend yield for the trailing twelve months is around 0.63%.

Position	TTM	2025	2024
FBUF Fidelity Dynamic Buffered Equity ETF	0.63%	0.64%	0.54%
SPBU AllianzIM Buffer15 Uncapped Allocation ETF	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SPBU and FBUF in my portfolio?

With a correlation of 0.90, SPBU and FBUF 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 is riskier, SPBU or FBUF?

SPBU has higher volatility (2.55%) compared to FBUF (1.11%). In terms of maximum drawdown, SPBU dropped -8.30% vs FBUF's -11.09%.

Which ETF is better, SPBU or FBUF?

On 1-year performance, SPBU leads with 21.80% vs 19.61% for FBUF. On fees, FBUF is cheaper at 0.48% per year. On volatility, FBUF has been the lower-risk option at 1.11%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SPBU or FBUF?

Over the 1-year period, SPBU has performed better with a 21.80% return vs 19.61%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SPBU or FBUF?

FBUF is cheaper with a 0.48% expense ratio, compared with 0.79% for SPBU.

Which ETF pays a higher dividend yield, SPBU or FBUF?

FBUF has the higher dividend yield at 0.63%, compared with 0.00% for SPBU.

What is the main difference between SPBU and FBUF?

They also come from different issuers: Allianz and Fidelity. Their fees differ too: 0.79% for SPBU and 0.48% for FBUF.

Which has better risk-adjusted returns?

FBUF currently has the higher Sharpe Ratio (2.63 vs 2.32), 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.