MTGP vs. SPMB
MTGP (WisdomTree Mortgage Plus Bond Fund) and SPMB (SPDR Portfolio Mortgage Backed Bond ETF) are both Mortgage Backed Securities funds. MTGP is actively managed, while SPMB is passively managed. Over the past 5 years, MTGP returned 0.29%/yr vs 0.29%/yr for SPMB. A 0.72 correlation means they provide meaningful diversification when combined. MTGP charges 0.45%/yr vs 0.04%/yr for SPMB.
Performance
MTGP vs. SPMB - Performance Comparison
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Returns By Period
In the year-to-date period, MTGP achieves a 0.21% return, which is significantly lower than SPMB's 0.51% return.
MTGP
- 1D
- -0.23%
- 1M
- 0.13%
- YTD
- 0.21%
- 6M
- 0.15%
- 1Y
- 6.02%
- 3Y*
- 4.29%
- 5Y*
- 0.29%
- 10Y*
- —
SPMB
- 1D
- -0.22%
- 1M
- 0.27%
- YTD
- 0.51%
- 6M
- 0.64%
- 1Y
- 6.74%
- 3Y*
- 4.32%
- 5Y*
- 0.29%
- 10Y*
- 1.21%
MTGP vs. SPMB - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
MTGP WisdomTree Mortgage Plus Bond Fund | 0.21% | 7.57% | 2.48% | 3.96% | -11.29% | -0.64% | 4.91% | 0.05% |
SPMB SPDR Portfolio Mortgage Backed Bond ETF | 0.51% | 8.29% | 1.35% | 5.09% | -12.05% | -1.46% | 4.19% | 0.42% |
Correlation
The correlation between MTGP and SPMB is 0.85, 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 | 0.85 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.89 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.77 |
Correlation (All Time) Calculated using the full available price history since Nov 15, 2019 | 0.72 |
The correlation between MTGP and SPMB shifts across timeframes, from 0.72 (all time) to 0.89 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
MTGP vs. SPMB — Risk / Return Rank
MTGP
SPMB
MTGP vs. SPMB - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for WisdomTree Mortgage Plus Bond Fund (MTGP) and SPDR Portfolio Mortgage Backed Bond ETF (SPMB). 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.
| MTGP | SPMB | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.32 | ||
| Sortino ratioReturn per unit of downside risk | -0.55 | ||
| Omega ratioGain probability vs. loss probability | 1.24 | 1.29 | -0.05 |
| Calmar ratioReturn relative to maximum drawdown | 2.39 | 2.34 | +0.05 |
| Martin ratioReturn relative to average drawdown | 6.36 | 7.70 | -1.33 |
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
| MTGP | SPMB | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.27 | 1.58 | -0.32 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.05 | 0.04 | +0.01 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.16 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.18 | 0.34 | -0.16 |
Drawdowns
MTGP vs. SPMB - Drawdown Comparison
The maximum MTGP drawdown since its inception was -16.63%, smaller than the maximum SPMB drawdown of -18.03%. Use the drawdown chart below to compare losses from any high point for MTGP and SPMB.
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Drawdown Indicators
| MTGP | SPMB | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -16.63% | -18.03% | +1.40% |
Max Drawdown (1Y)Largest decline over 1 year | -2.53% | -2.89% | +0.36% |
Max Drawdown (3Y)Largest decline over 3 years | -6.46% | -7.66% | +1.20% |
Max Drawdown (5Y)Largest decline over 5 years | -16.63% | -17.49% | +0.86% |
Max Drawdown (10Y)Largest decline over 10 years | — | -18.03% | — |
Current DrawdownCurrent decline from peak | -1.53% | -1.58% | +0.05% |
Average DrawdownAverage peak-to-trough decline | -5.11% | -2.85% | -2.26% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.95% | 0.88% | +0.07% |
Volatility
MTGP vs. SPMB - Volatility Comparison
The current volatility for WisdomTree Mortgage Plus Bond Fund (MTGP) is 1.30%, while SPDR Portfolio Mortgage Backed Bond ETF (SPMB) has a volatility of 1.58%. This indicates that MTGP experiences smaller price fluctuations and is considered to be less risky than SPMB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MTGP | SPMB | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.30% | 1.58% | -0.28% |
Volatility (6M)Calculated over the trailing 6-month period | 3.09% | 3.08% | +0.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.78% | 4.28% | +0.50% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.79% | 6.77% | -0.98% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 5.25% | 7.61% | -2.36% |
MTGP vs. SPMB - Expense Ratio Comparison
MTGP has a 0.45% expense ratio, which is higher than SPMB's 0.04% expense ratio.
Dividends
MTGP vs. SPMB - Dividend Comparison
MTGP's dividend yield for the trailing twelve months is around 4.32%, more than SPMB's 4.09% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MTGP WisdomTree Mortgage Plus Bond Fund | 4.32% | 4.19% | 4.05% | 3.02% | 2.47% | 1.64% | 2.61% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SPMB SPDR Portfolio Mortgage Backed Bond ETF | 4.09% | 3.98% | 3.76% | 3.21% | 2.98% | 2.59% | 2.95% | 3.24% | 3.36% | 3.13% | 2.99% | 3.05% |
Frequently Asked Questions
MTGP and SPMB have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SPMB has higher volatility (1.58%) compared to MTGP (1.30%). In terms of maximum drawdown, MTGP dropped -16.63% vs SPMB's -18.03%.
On 5-year performance, SPMB leads with 0.29% vs 0.29% for MTGP. On fees, SPMB is cheaper at 0.04% per year. On volatility, MTGP has been the lower-risk option at 1.30%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, SPMB has performed better with a 0.29% return vs 0.29%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
SPMB is cheaper with a 0.04% expense ratio, compared with 0.45% for MTGP.
MTGP has the higher dividend yield at 4.32%, compared with 4.09% for SPMB.
They also come from different issuers: WisdomTree and State Street. Their fees differ too: 0.45% for MTGP and 0.04% for SPMB.
SPMB currently has the higher Sharpe Ratio (1.58 vs 1.27), 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.
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