SPMB vs. XLU

Last updated Apr 1, 2026

Compare and contrast key facts about SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and Utilities Select Sector SPDR Fund (XLU).

SPMB and XLU are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. SPMB is a passively managed fund by State Street that tracks the performance of the Bloomberg US Aggregate Securitized - MBS. It was launched on Jan 15, 2009. XLU is a passively managed fund by State Street that tracks the performance of the Utilities Select Sector Index. It was launched on Dec 16, 1998. Both SPMB and XLU are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

SPMB vs. XLU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and Utilities Select Sector SPDR Fund (XLU). The values are adjusted to include any dividend payments, if applicable.

SPMB vs. XLU - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SPMB SPDR Portfolio Mortgage Backed Bond ETF	0.51%	8.29%	1.35%	5.09%	-12.05%	-1.46%	4.19%	6.16%	1.01%	2.13%
XLU Utilities Select Sector SPDR Fund	8.25%	16.03%	23.31%	-7.18%	1.44%	17.70%	0.51%	25.93%	3.94%	12.05%

Returns By Period

In the year-to-date period, SPMB achieves a 0.51% return, which is significantly lower than XLU's 8.25% return. Over the past 10 years, SPMB has underperformed XLU with an annualized return of 1.29%, while XLU has yielded a comparatively higher 9.74% annualized return.

SPMB

• 1D: 0.31%
• 1M: -1.58%
• YTD: 0.51%
• 6M: 1.98%
• 1Y: 5.73%
• 3Y*: 4.11%
• 5Y*: 0.37%
• 10Y*: 1.29%

XLU

• 1D: -0.07%
• 1M: -3.18%
• YTD: 8.25%
• 6M: 6.77%
• 1Y: 19.71%
• 3Y*: 14.12%
• 5Y*: 10.80%
• 10Y*: 9.74%

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

SPMB vs. XLU - Expense Ratio Comparison

SPMB has a 0.04% expense ratio, which is lower than XLU's 0.13% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

XLU

Utilities Select Sector SPDR Fund

SPMB

SPDR Portfolio Mortgage Backed Bond ETF

Return for Risk

SPMB vs. XLU — Risk / Return Rank

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

SPMB

SPMB Risk / Return Rank: 66
SPMB Sharpe Ratio Rank: 68
SPMB Sortino Ratio Rank: 68
SPMB Omega Ratio Rank: 59
SPMB Calmar Ratio Rank: 77
SPMB Martin Ratio Rank: 60

XLU

XLU Risk / Return Rank: 71
XLU Sharpe Ratio Rank: 74
XLU Sortino Ratio Rank: 71
XLU Omega Ratio Rank: 67
XLU Calmar Ratio Rank: 84
XLU Martin Ratio Rank: 61

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.

SPMB vs. XLU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and Utilities Select Sector SPDR Fund (XLU). 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.

	SPMB	XLU	Difference
Sharpe ratio Return per unit of total volatility	1.18	1.25	-0.07
Sortino ratio Return per unit of downside risk	1.69	1.71	-0.02
Omega ratio Gain probability vs. loss probability	1.21	1.23	-0.02
Calmar ratio Return relative to maximum drawdown	2.01	2.29	-0.29
Martin ratio Return relative to average drawdown	5.76	5.51	+0.24
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPMB vs. XLU - Sharpe Ratio Comparison

The current SPMB Sharpe Ratio is 1.18, which is comparable to the XLU Sharpe Ratio of 1.25. The chart below compares the historical Sharpe Ratios of SPMB and XLU, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	SPMB	XLU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.18	1.25	-0.07
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.05	0.63	-0.58
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.17	0.51	-0.34
Sharpe Ratio (All Time) Calculated using the full available price history	0.34	0.41	-0.07

Correlation

The correlation between SPMB and XLU is 0.14, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

SPMB vs. XLU - Dividend Comparison

SPMB's dividend yield for the trailing twelve months is around 4.02%, more than XLU's 2.59% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SPMB SPDR Portfolio Mortgage Backed Bond ETF	4.02%	3.98%	3.76%	3.21%	2.98%	2.59%	2.95%	3.24%	3.36%	3.13%	2.99%	3.05%
XLU Utilities Select Sector SPDR Fund	2.59%	2.71%	2.96%	3.39%	2.92%	2.79%	3.14%	2.95%	3.33%	3.33%	3.41%	3.67%

Drawdowns

SPMB vs. XLU - Drawdown Comparison

The maximum SPMB drawdown since its inception was -18.03%, smaller than the maximum XLU drawdown of -51.98%. Use the drawdown chart below to compare losses from any high point for SPMB and XLU.

Drawdown Indicators

	SPMB	XLU	Difference
Max Drawdown Largest peak-to-trough decline	-18.03%	-51.98%	+33.95%
Max Drawdown (1Y) Largest decline over 1 year	-2.93%	-9.18%	+6.25%
Max Drawdown (5Y) Largest decline over 5 years	-17.49%	-25.26%	+7.77%
Max Drawdown (10Y) Largest decline over 10 years	-18.03%	-36.07%	+18.04%
Current Drawdown Current decline from peak	-1.58%	-3.18%	+1.60%
Average Drawdown Average peak-to-trough decline	-2.87%	-10.26%	+7.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.02%	3.82%	-2.80%

Volatility

SPMB vs. XLU - Volatility Comparison

The current volatility for SPDR Portfolio Mortgage Backed Bond ETF (SPMB) is 1.83%, while Utilities Select Sector SPDR Fund (XLU) has a volatility of 5.09%. This indicates that SPMB experiences smaller price fluctuations and is considered to be less risky than XLU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPMB	XLU	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.83%	5.09%	-3.26%
Volatility (6M) Calculated over the trailing 6-month period	2.77%	10.35%	-7.58%
Volatility (1Y) Calculated over the trailing 1-year period	4.88%	15.82%	-10.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.73%	17.18%	-10.45%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.59%	19.21%	-11.62%