SPYX vs. PMFB

Last updated Jun 24, 2026

SPYX (State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF) and PMFB (PGIM S&P 500 Max Buffer ETF - February) are both exchange-traded funds - SPYX is a S&P 500 fund tracking the S&P 500 Fossil Fuel Reserves Free Index, while PMFB is a Defined Outcome fund actively managed by PGIM. SPYX is passively managed, while PMFB is actively managed. Over the past year, SPYX returned 23.08% vs 7.42% for PMFB. Their correlation of 0.89 suggests significant overlap in exposure. SPYX charges 0.20%/yr vs 0.50%/yr for PMFB.

Performance

SPYX vs. PMFB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) and PGIM S&P 500 Max Buffer ETF - February (PMFB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPYX achieves a 7.48% return, which is significantly higher than PMFB's 2.39% return.

SPYX

• 1D: -1.36%
• 1M: -1.24%
• YTD: 7.48%
• 6M: 6.47%
• 1Y: 23.08%
• 3Y*: 20.64%
• 5Y*: 12.68%
• 10Y*: 15.61%

PMFB

• 1D: -0.13%
• 1M: 0.06%
• YTD: 2.39%
• 6M: 2.46%
• 1Y: 7.42%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SPYX vs. PMFB - Yearly Performance Comparison

	2026 (YTD)	2025
SPYX State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF	7.48%	14.82%
PMFB PGIM S&P 500 Max Buffer ETF - February	2.39%	6.39%

Correlation

The correlation between SPYX and PMFB 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 Feb 3, 2025	0.89

The correlation between SPYX and PMFB has been stable across timeframes, ranging from 0.89 to 0.90 - a consistent structural relationship.

Return for Risk

SPYX vs. PMFB — Risk / Return Rank

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

SPYX

SPYX Risk / Return Rank: 55
SPYX Sharpe Ratio Rank: 56
SPYX Sortino Ratio Rank: 54
SPYX Omega Ratio Rank: 55
SPYX Calmar Ratio Rank: 50
SPYX Martin Ratio Rank: 61

PMFB

PMFB Risk / Return Rank: 95
PMFB Sharpe Ratio Rank: 95
PMFB Sortino Ratio Rank: 97
PMFB Omega Ratio Rank: 96
PMFB Calmar Ratio Rank: 92
PMFB 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.

SPYX vs. PMFB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) and PGIM S&P 500 Max Buffer ETF - February (PMFB). 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.

	SPYX	PMFB	Difference
Sharpe ratio: Return per unit of total volatility	1.81	3.52	-1.71
Sortino ratio: Return per unit of downside risk	2.48	5.52	-3.04
Omega ratio: Gain probability vs. loss probability	1.33	1.78	-0.46
Calmar ratio: Return relative to maximum drawdown	2.36	5.56	-3.21
Martin ratio: Return relative to average drawdown	10.49	28.39	-17.90

SPYX vs. PMFB - Sharpe Ratio Comparison

The current SPYX Sharpe Ratio is 1.81, which is lower than the PMFB Sharpe Ratio of 3.52. The chart below compares the historical Sharpe Ratios of SPYX and PMFB, 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

SPYX vs. PMFB - Drawdown Comparison

The maximum SPYX drawdown since its inception was -32.84%, which is greater than PMFB's maximum drawdown of -2.94%. Use the drawdown chart below to compare losses from any high point for SPYX and PMFB.

Drawdown Indicators

	SPYX	PMFB	Difference
Max Drawdown Largest peak-to-trough decline	-32.84%	-2.94%	-29.90%
Max Drawdown (1Y) Largest decline over 1 year	-9.84%	-1.34%	-8.50%
Max Drawdown (3Y) Largest decline over 3 years	-18.74%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-26.14%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-32.84%	—	—
Current Drawdown Current decline from peak	-3.08%	-0.27%	-2.81%
Average Drawdown Average peak-to-trough decline	-4.52%	-0.36%	-4.16%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.20%	0.26%	+1.94%

Volatility

SPYX vs. PMFB - Volatility Comparison

State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) has a higher volatility of 4.98% compared to PGIM S&P 500 Max Buffer ETF - February (PMFB) at 0.62%. This indicates that SPYX's price experiences larger fluctuations and is considered to be riskier than PMFB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPYX	PMFB	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.98%	0.62%	+4.36%
Volatility (6M) Calculated over the trailing 6-month period	10.15%	1.53%	+8.62%
Volatility (1Y) Calculated over the trailing 1-year period	12.82%	2.14%	+10.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.15%	2.76%	+14.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.03%	2.76%	+15.27%

SPYX vs. PMFB - Expense Ratio Comparison

SPYX has a 0.20% expense ratio, which is lower than PMFB's 0.50% expense ratio.

Dividends

SPYX vs. PMFB - Dividend Comparison

SPYX's dividend yield for the trailing twelve months is around 0.88%, while PMFB has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PMFB PGIM S&P 500 Max Buffer ETF - February	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPYX State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF	0.88%	0.91%	1.05%	1.21%	1.41%	1.04%	1.33%	1.56%	1.92%	1.68%	1.91%	0.16%

Frequently Asked Questions

Can I hold both SPYX and PMFB in my portfolio?

With a correlation of 0.90, SPYX and PMFB 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, SPYX or PMFB?

SPYX has higher volatility (4.98%) compared to PMFB (0.62%). In terms of maximum drawdown, SPYX dropped -32.84% vs PMFB's -2.94%.

Which ETF is better, SPYX or PMFB?

On 1-year performance, SPYX leads with 23.08% vs 7.42% for PMFB. On fees, SPYX is cheaper at 0.20% per year. On volatility, PMFB has been the lower-risk option at 0.62%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SPYX or PMFB?

Over the 1-year period, SPYX has performed better with a 23.08% return vs 7.42%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SPYX or PMFB?

SPYX is cheaper with a 0.20% expense ratio, compared with 0.50% for PMFB.

Which ETF pays a higher dividend yield, SPYX or PMFB?

SPYX has the higher dividend yield at 0.88%, compared with 0.00% for PMFB.

What is the main difference between SPYX and PMFB?

SPYX is categorized as S&P 500, while PMFB is Defined Outcome. They also come from different issuers: State Street and PGIM. Their fees differ too: 0.20% for SPYX and 0.50% for PMFB.

Which has better risk-adjusted returns?

PMFB currently has the higher Sharpe Ratio (3.52 vs 1.81), 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.