MBSD vs. TDTF
MBSD (FlexShares Disciplined Duration MBS Index Fund) and TDTF (FlexShares iBoxx 5-Year Target Duration TIPS Index Fund) are both exchange-traded funds - MBSD is a Mortgage Backed Securities fund tracking the ICE BofA Constrained Duration US Mortgage Backed Securities, while TDTF is a Inflation-Protected Bonds fund tracking the iBoxx 5-Year Target Duration TIPS. Both are passively managed. Over the past 10 years, MBSD returned 1.28%/yr vs 2.81%/yr for TDTF. Their 0.49 correlation means their historical movements had little consistent relationship. MBSD charges 0.20%/yr vs 0.18%/yr for TDTF.
Performance
MBSD vs. TDTF - Performance Comparison
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Returns By Period
In the year-to-date period, MBSD achieves a 0.05% return, which is significantly lower than TDTF's 0.91% return. Over the past 10 years, MBSD has underperformed TDTF with an annualized return of 1.28%, while TDTF has yielded a comparatively higher 2.81% annualized return.
MBSD
- 1D
- 0.24%
- 1M
- -0.64%
- 6M
- -0.19%
- YTD
- 0.05%
- 1Y
- 2.67%
- 3Y*
- 4.35%
- 5Y*
- 0.46%
- 10Y*
- 1.28%
- ALL TIME*
- 1.56%
TDTF
- 1D
- -0.05%
- 1M
- -0.22%
- 6M
- 0.55%
- YTD
- 0.91%
- 1Y
- 2.09%
- 3Y*
- 4.37%
- 5Y*
- 1.09%
- 10Y*
- 2.81%
- ALL TIME*
- 2.22%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $182.32K | $254.46K | $254.18K | |
| $2.88M | $3.04M | $4.12M |
MBSD vs. TDTF - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MBSD FlexShares Disciplined Duration MBS Index Fund | 0.05% | 7.12% | 2.30% | 4.46% | -9.49% | -1.40% | 5.43% | 6.05% | 0.32% | 0.86% |
TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 0.91% | 7.83% | 2.40% | 4.10% | -9.73% | 5.54% | 9.98% | 7.99% | -0.82% | 1.93% |
Correlation
The correlation between MBSD and TDTF is 0.62, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.62 |
Correlation (3Y) Balances recent behavior with more history. | 0.74 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.71 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.52 |
Correlation (All Time) Calculated using the full available price history since Sep 4, 2014 | 0.49 |
The correlation between MBSD and TDTF shifts across timeframes, from 0.49 (all time) to 0.74 (3 years), reflecting how their relationship changes across market environments.
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Return for Risk
MBSD vs. TDTF — Risk / Return Rank
MBSD
TDTF
MBSD vs. TDTF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for FlexShares Disciplined Duration MBS Index Fund (MBSD) and FlexShares iBoxx 5-Year Target Duration TIPS Index Fund (TDTF). 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.
| MBSD | TDTF | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.10 | ||
| Sortino ratioReturn per unit of downside risk | +0.13 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.12 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | 1.23 | 1.33 | -0.10 |
| Martin ratioReturn relative to average drawdown | 3.24 | 3.36 | -0.13 |
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Drawdowns
MBSD vs. TDTF - Drawdown Comparison
The maximum MBSD drawdown since its inception was -14.36%, which is greater than TDTF's maximum drawdown of -12.02%. Use the drawdown chart below to compare losses from any high point for MBSD and TDTF.
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Drawdown Indicators
| MBSD | TDTF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -14.36% | -12.02% | -2.34% |
Max Drawdown (1Y)Largest decline over 1 year | -2.17% | -1.58% | -0.59% |
Max Drawdown (3Y)Largest decline over 3 years | -4.25% | -3.40% | -0.85% |
Max Drawdown (5Y)Largest decline over 5 years | -14.01% | -12.02% | -1.99% |
Max Drawdown (10Y)Largest decline over 10 years | -14.36% | -12.02% | -2.34% |
Current DrawdownCurrent decline from peak | -1.56% | -1.17% | -0.39% |
Average DrawdownAverage peak-to-trough decline | -2.79% | -2.89% | +0.10% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.83% | 0.62% | +0.21% |
Volatility
MBSD vs. TDTF - Volatility Comparison
FlexShares Disciplined Duration MBS Index Fund (MBSD) has a higher volatility of 0.89% compared to FlexShares iBoxx 5-Year Target Duration TIPS Index Fund (TDTF) at 0.75%. This indicates that MBSD's price experiences larger fluctuations and is considered to be riskier than TDTF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MBSD | TDTF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.89% | 0.75% | +0.14% |
Volatility (6M)Calculated over the trailing 6-month period | 2.59% | 2.28% | +0.31% |
Volatility (1Y)Calculated over the trailing 1-year period | 3.35% | 3.02% | +0.33% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.17% | 5.68% | -0.51% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.27% | 5.07% | -0.80% |
MBSD vs. TDTF - Expense Ratio Comparison
MBSD has a 0.20% expense ratio, which is higher than TDTF's 0.18% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
MBSD vs. TDTF - Dividend Comparison
MBSD's dividend yield for the trailing twelve months is around 4.17%, less than TDTF's 5.85% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
MBSD FlexShares Disciplined Duration MBS Index Fund | 4.17% | 4.23% | 3.91% | 3.39% | 3.03% | 2.41% | 2.78% | 3.42% | 3.22% | 3.30% | 3.02% | 3.46% |
TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 5.85% | 4.58% | 3.98% | 3.97% | 7.60% | 4.55% | 1.13% | 1.80% | 2.60% | 2.20% | 1.51% | 0.21% |
Frequently Asked Questions
MBSD and TDTF have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MBSD has higher volatility (0.89%) compared to TDTF (0.75%). In terms of maximum drawdown, MBSD dropped -14.36% vs TDTF's -12.02%.
On 10-year performance, TDTF leads with 2.81% vs 1.28% for MBSD. On fees, TDTF is cheaper at 0.18% per year. On volatility, TDTF has been the lower-risk option at 0.75%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, TDTF has performed better with a 2.81% return vs 1.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TDTF is cheaper with a 0.18% expense ratio, compared with 0.20% for MBSD.
TDTF has the higher dividend yield at 5.85%, compared with 4.17% for MBSD.
MBSD is categorized as Mortgage Backed Securities, while TDTF is Inflation-Protected Bonds. MBSD tracks ICE BofA Constrained Duration US Mortgage Backed Securities, while TDTF tracks iBoxx 5-Year Target Duration TIPS. Their fees differ too: 0.20% for MBSD and 0.18% for TDTF.
MBSD currently has the higher Sharpe Ratio (0.80 vs 0.70), 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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