SPMB vs. GSST
Compare and contrast key facts about SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and Goldman Sachs Ultra Short Bond ETF (GSST).
SPMB and GSST 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. GSST is an actively managed fund by Goldman Sachs. It was launched on Apr 15, 2019.
Performance
SPMB vs. GSST - Performance Comparison
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SPMB vs. GSST - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
SPMB SPDR Portfolio Mortgage Backed Bond ETF | 0.51% | 8.29% | 1.35% | 5.09% | -12.05% | -1.46% | 4.19% | 4.15% |
GSST Goldman Sachs Ultra Short Bond ETF | 0.76% | 5.20% | 6.01% | 6.08% | 0.13% | 0.05% | 1.74% | 2.65% |
Returns By Period
In the year-to-date period, SPMB achieves a 0.51% return, which is significantly lower than GSST's 0.76% 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%
GSST
- 1D
- 0.06%
- 1M
- 0.04%
- YTD
- 0.76%
- 6M
- 1.89%
- 1Y
- 4.55%
- 3Y*
- 5.51%
- 5Y*
- 3.60%
- 10Y*
- —
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SPMB vs. GSST - Expense Ratio Comparison
SPMB has a 0.04% expense ratio, which is lower than GSST's 0.16% 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%.
Return for Risk
SPMB vs. GSST — Risk / Return Rank
SPMB
GSST
SPMB vs. GSST - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR Portfolio Mortgage Backed Bond ETF (SPMB) and Goldman Sachs Ultra Short Bond ETF (GSST). 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 | GSST | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 1.18 | 6.29 | -5.11 |
Sortino ratioReturn per unit of downside risk | 1.69 | 11.28 | -9.59 |
Omega ratioGain probability vs. loss probability | 1.21 | 3.26 | -2.05 |
Calmar ratioReturn relative to maximum drawdown | 2.01 | 18.26 | -16.26 |
Martin ratioReturn relative to average drawdown | 5.76 | 113.51 | -107.75 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| SPMB | GSST | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.18 | 6.29 | -5.11 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | 5.79 | -5.74 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.17 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.34 | 3.72 | -3.38 |
Correlation
The correlation between SPMB and GSST is 0.32, 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. GSST - Dividend Comparison
SPMB's dividend yield for the trailing twelve months is around 4.02%, less than GSST's 4.43% 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% |
GSST Goldman Sachs Ultra Short Bond ETF | 4.43% | 4.56% | 5.45% | 4.98% | 1.97% | 0.71% | 1.12% | 1.66% | 0.00% | 0.00% | 0.00% | 0.00% |
Drawdowns
SPMB vs. GSST - Drawdown Comparison
The maximum SPMB drawdown since its inception was -18.03%, which is greater than GSST's maximum drawdown of -3.51%. Use the drawdown chart below to compare losses from any high point for SPMB and GSST.
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Drawdown Indicators
| SPMB | GSST | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.03% | -3.51% | -14.52% |
Max Drawdown (1Y)Largest decline over 1 year | -2.93% | -0.25% | -2.68% |
Max Drawdown (5Y)Largest decline over 5 years | -17.49% | -1.19% | -16.30% |
Max Drawdown (10Y)Largest decline over 10 years | -18.03% | — | — |
Current DrawdownCurrent decline from peak | -1.58% | 0.00% | -1.58% |
Average DrawdownAverage peak-to-trough decline | -2.87% | -0.17% | -2.70% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.02% | 0.04% | +0.98% |
Volatility
SPMB vs. GSST - Volatility Comparison
SPDR Portfolio Mortgage Backed Bond ETF (SPMB) has a higher volatility of 1.83% compared to Goldman Sachs Ultra Short Bond ETF (GSST) at 0.25%. This indicates that SPMB's price experiences larger fluctuations and is considered to be riskier than GSST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| SPMB | GSST | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.83% | 0.25% | +1.58% |
Volatility (6M)Calculated over the trailing 6-month period | 2.77% | 0.42% | +2.35% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.88% | 0.73% | +4.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 6.73% | 0.63% | +6.10% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 7.59% | 0.87% | +6.72% |