- ISIN
- US78464A3831
- CUSIP
- 78464A383
- Issuer
- State Street
- Inception Date
- Jan 15, 2009
- Region
- North America (U.S.)
- Category
- Mortgage Backed Securities
- Leveraged
- 1x (No leverage)
- Index Tracked
- Bloomberg US Aggregate Securitized - MBS
- Distribution Policy
- Distributing
- Asset Class
- Bond
- Assets Under Management
- $7B
Share Price Chart
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Performance
SPMB Performance Chart
SPDR Portfolio Mortgage Backed Bond ETF (SPMB) is up 0.8% since the beginning of the year. SPMB is currently trading at $22 per share. Investors who bought $1,000 worth of SPMB shares 5 years ago would now be looking at an investment worth $1,020.
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Returns By Period
SPDR Portfolio Mortgage Backed Bond ETF (SPMB) has returned 0.76% so far this year and 5.97% over the past 12 months. Over the last ten years, SPMB has returned 1.28% per year, falling short of the S&P 500 Index benchmark, which averaged 13.88% annually.
SPDR Portfolio Mortgage Backed Bond ETF
- 1D
- -0.25%
- 1M
- 0.65%
- YTD
- 0.76%
- 6M
- 0.83%
- 1Y
- 5.97%
- 3Y*
- 4.27%
- 5Y*
- 0.40%
- 10Y*
- 1.28%
Benchmark (S&P 500 Index)
- 1D
- -0.37%
- 1M
- -0.01%
- YTD
- 9.16%
- 6M
- 8.64%
- 1Y
- 25.22%
- 3Y*
- 19.78%
- 5Y*
- 11.99%
- 10Y*
- 13.88%
SPMB Monthly Returns History
Based on dividend-adjusted daily data since Jan 30, 2009, SPMB's average daily return is +0.01%, while the average monthly return is +0.20%. At this rate, an investment would double in approximately 28.9 years.
Historically, 63% of months were positive and 37% were negative. The best month was Nov 2023 with a return of +5.2%, while the worst month was Sep 2022 at -5.2%. The longest winning streak lasted 10 consecutive months, and the longest losing streak was 6 months.
On a daily basis, SPMB closed higher 48% of trading days. The best single day was Mar 13, 2020 with a return of +12.7%, while the worst single day was Mar 12, 2020 at -11.7%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.38% | 1.75% | -1.58% | 0.05% | 0.31% | -0.11% | 0.76% | ||||||
| 2025 | 0.37% | 2.67% | -0.11% | 0.26% | -0.92% | 1.83% | -0.46% | 1.69% | 1.26% | 0.80% | 0.57% | 0.08% | 8.29% |
| 2024 | -0.23% | -1.81% | 1.05% | -3.03% | 2.02% | 1.29% | 2.58% | 1.70% | 1.01% | -2.78% | 1.40% | -1.64% | 1.35% |
| 2023 | 3.46% | -2.74% | 2.11% | 0.53% | -0.73% | -0.24% | -0.28% | -0.88% | -3.17% | -2.17% | 5.24% | 4.25% | 5.09% |
| 2022 | -1.54% | -1.00% | -2.74% | -3.54% | 0.98% | -1.40% | 3.17% | -3.40% | -5.16% | -1.25% | 4.15% | -0.64% | -12.05% |
| 2021 | 0.15% | -0.92% | -0.66% | 0.61% | -0.29% | 0.06% | 0.52% | -0.11% | -0.34% | -0.53% | 0.13% | -0.10% | -1.46% |
Benchmark Metrics
SPDR Portfolio Mortgage Backed Bond ETF has an annualized alpha of 1.75%, beta of 0.05, and R2 of 0.02 versus S&P 500 Index. Calculated based on daily prices since January 30, 2009.
- This ETF participates in less of S&P 500 Index's moves in both directions, but captures a larger share of gains (9.16%) than losses (6.17%) - typical of diversified or defensive assets.
- Beta of 0.05 may look defensive, but with R2 of 0.02 this ETF is largely uncorrelated with S&P 500 Index - low beta reflects independence, not downside protection. See the Volatility section for a true picture of this ETF's risk.
- R2 of 0.02 means this ETF moves largely independently of S&P 500 Index - capture ratios reflect limited market correlation rather than active downside protection. Consider using a more representative benchmark.
- Alpha
- 1.75%
- Beta
- 0.05
- R²
- 0.02
- Upside Capture
- 9.16%
- Downside Capture
- 6.17%
Expense Ratio
SPMB has an expense ratio of 0.04%, which is considered low.
Return for Risk
Risk / Return Rank
SPMB ranks 42 for risk / return — on par with similar ETFs. You're getting a typical balance of risk and reward. Not a standout, but not a red flag either — a reasonable choice if other factors align with your goals.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and compare them to S&P 500 Index.
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.
| SPMB | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.61 | ||
| Sortino ratioReturn per unit of downside risk | -0.62 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.37 | -0.11 |
| Calmar ratioReturn relative to maximum drawdown | 2.08 | 2.78 | -0.71 |
| Martin ratioReturn relative to average drawdown | 6.45 | 12.44 | -5.99 |
Dividends
Dividend History
SPDR Portfolio Mortgage Backed Bond ETF provided a 4.08% dividend yield over the last twelve months, with an annual payout of $0.91 per share. The fund has been increasing its distributions for 3 consecutive years.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $0.91 | $0.89 | $0.81 | $0.71 | $0.65 | $0.66 | $0.78 | $0.85 | $0.85 | $0.82 | $0.79 | $0.82 |
Dividend yield | 4.08% | 3.98% | 3.76% | 3.21% | 2.98% | 2.59% | 2.95% | 3.24% | 3.36% | 3.13% | 2.99% | 3.05% |
Monthly Dividends
The table displays the monthly dividend distributions for SPDR Portfolio Mortgage Backed Bond ETF. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.35 | ||||||
| 2025 | $0.00 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.07 | $0.21 | $0.89 |
| 2024 | $0.00 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.07 | $0.07 | $0.07 | $0.17 | $0.81 |
| 2023 | $0.00 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.12 | $0.71 |
| 2022 | $0.00 | $0.05 | $0.05 | $0.05 | $0.06 | $0.06 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.11 | $0.65 |
| 2021 | $0.00 | $0.06 | $0.06 | $0.06 | $0.06 | $0.06 | $0.05 | $0.05 | $0.05 | $0.05 | $0.05 | $0.11 | $0.66 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the SPDR Portfolio Mortgage Backed Bond ETF. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the SPDR Portfolio Mortgage Backed Bond ETF was 18.03%, occurring on Oct 19, 2023. Recovery took 557 trading sessions.
The current SPDR Portfolio Mortgage Backed Bond ETF drawdown is 1.34%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
2023 correction2023 | -18.03%Oct 2023 | 2y 8mo | 2y 2mo | 4y 11moFeb 2021 - Jan 2026 |
COVID crash2020 | -12.60%Mar 2020 | 3d | 18d | 21dMar 2020 - Mar 2020 |
2010 pullback2010 | -5.04%Jan 2010 | 1mo 29d | 5mo 11d | 7mo 10dNov 2009 - Jun 2010 |
Financial crisis2007–2009 | -4.95%Sep 2009 | 8d | 1mo 14d | 1mo 22dSep 2009 - Nov 2009 |
2013 pullback2013 | -4.53%Sep 2013 | 11mo 13d | 7mo 28d | 1y 7moSep 2012 - May 2014 |
Drawdown Indicators
| SPMB | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.03% | -56.78% | +38.75% |
Max Drawdown (1Y)Largest decline over 1 year | -2.89% | -9.10% | +6.21% |
Max Drawdown (3Y)Largest decline over 3 years | -7.66% | -18.90% | +11.24% |
Max Drawdown (5Y)Largest decline over 5 years | -17.49% | -25.43% | +7.94% |
Max Drawdown (10Y)Largest decline over 10 years | -18.03% | -33.92% | +15.89% |
Current DrawdownCurrent decline from peak | -1.34% | -1.80% | +0.46% |
Average DrawdownAverage peak-to-trough decline | -2.85% | -10.71% | +7.86% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.93% | 2.03% | -1.10% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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