TDTT vs. TDTF
TDTT (FlexShares iBoxx 3-Year Target Duration TIPS Index Fund) and TDTF (FlexShares iBoxx 5-Year Target Duration TIPS Index Fund) are both Inflation-Protected Bonds funds from Northern Trust - TDTT tracks the iBoxx 3-Year Target Duration TIPS while TDTF tracks the iBoxx 5-Year Target Duration TIPS. Both are passively managed. Over the past 10 years, TDTT returned 3.10%/yr vs 2.94%/yr for TDTF. Their correlation of 0.81 suggests significant overlap in exposure. Both charge a 0.18% expense ratio.
Performance
TDTT vs. TDTF - Performance Comparison
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Returns By Period
In the year-to-date period, TDTT achieves a 1.76% return, which is significantly higher than TDTF's 1.52% return. Over the past 10 years, TDTT has outperformed TDTF with an annualized return of 3.10%, while TDTF has yielded a comparatively lower 2.94% annualized return.
TDTT
- 1D
- -0.04%
- 1M
- -0.02%
- YTD
- 1.76%
- 6M
- 1.79%
- 1Y
- 4.44%
- 3Y*
- 4.93%
- 5Y*
- 2.84%
- 10Y*
- 3.10%
TDTF
- 1D
- 0.00%
- 1M
- -0.28%
- YTD
- 1.52%
- 6M
- 1.29%
- 1Y
- 4.72%
- 3Y*
- 4.46%
- 5Y*
- 1.72%
- 10Y*
- 2.94%
TDTT vs. TDTF - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 1.76% | 6.67% | 3.96% | 4.40% | -4.58% | 5.49% | 6.84% | 5.74% | 0.25% | 0.43% |
TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 1.52% | 7.83% | 2.40% | 4.10% | -9.73% | 5.54% | 9.98% | 7.99% | -0.82% | 1.93% |
Correlation
The correlation between TDTT and TDTF is 0.87, 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 | 0.87 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.90 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.91 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Sep 26, 2011 | 0.81 |
The correlation between TDTT and TDTF shifts across timeframes, from 0.81 (all time) to 0.91 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
TDTT vs. TDTF — Risk / Return Rank
TDTT
TDTF
TDTT vs. TDTF - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) 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.
| TDTT | TDTF | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.87 | ||
| Sortino ratioReturn per unit of downside risk | +1.63 | ||
| Omega ratioGain probability vs. loss probability | 1.49 | 1.28 | +0.21 |
| Calmar ratioReturn relative to maximum drawdown | 4.93 | 3.00 | +1.93 |
| Martin ratioReturn relative to average drawdown | 16.04 | 10.06 | +5.98 |
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
| TDTT | TDTF | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.43 | 1.56 | +0.87 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.78 | 0.30 | +0.48 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.92 | 0.58 | +0.34 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.69 | 0.47 | +0.22 |
Drawdowns
TDTT vs. TDTF - Drawdown Comparison
The maximum TDTT drawdown since its inception was -6.97%, smaller than the maximum TDTF drawdown of -12.02%. Use the drawdown chart below to compare losses from any high point for TDTT and TDTF.
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Drawdown Indicators
| TDTT | TDTF | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -6.97% | -12.02% | +5.05% |
Max Drawdown (1Y)Largest decline over 1 year | -0.90% | -1.58% | +0.68% |
Max Drawdown (3Y)Largest decline over 3 years | -1.53% | -3.79% | +2.26% |
Max Drawdown (5Y)Largest decline over 5 years | -6.97% | -12.02% | +5.05% |
Max Drawdown (10Y)Largest decline over 10 years | -6.97% | -12.02% | +5.05% |
Current DrawdownCurrent decline from peak | -0.18% | -0.57% | +0.39% |
Average DrawdownAverage peak-to-trough decline | -1.60% | -2.91% | +1.31% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.28% | 0.48% | -0.20% |
Volatility
TDTT vs. TDTF - Volatility Comparison
The current volatility for FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) is 0.45%, while FlexShares iBoxx 5-Year Target Duration TIPS Index Fund (TDTF) has a volatility of 0.71%. This indicates that TDTT experiences smaller price fluctuations and is considered to be less risky 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
| TDTT | TDTF | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.45% | 0.71% | -0.26% |
Volatility (6M)Calculated over the trailing 6-month period | 1.21% | 1.97% | -0.76% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.84% | 3.05% | -1.21% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.67% | 5.69% | -2.02% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.38% | 5.07% | -1.69% |
TDTT vs. TDTF - Expense Ratio Comparison
Both TDTT and TDTF have an expense ratio of 0.18%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
TDTT vs. TDTF - Dividend Comparison
TDTT's dividend yield for the trailing twelve months is around 4.55%, less than TDTF's 4.71% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TDTF FlexShares iBoxx 5-Year Target Duration TIPS Index Fund | 4.71% | 4.58% | 3.98% | 3.97% | 7.60% | 4.55% | 1.13% | 1.80% | 2.60% | 2.20% | 1.51% | 0.21% |
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 4.55% | 4.52% | 4.01% | 3.88% | 6.97% | 4.53% | 1.15% | 1.91% | 2.48% | 1.88% | 1.01% | 0.00% |
Frequently Asked Questions
TDTT and TDTF have a correlation of 0.87, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TDTF has higher volatility (0.71%) compared to TDTT (0.45%). In terms of maximum drawdown, TDTT dropped -6.97% vs TDTF's -12.02%.
On 10-year performance, TDTT leads with 3.10% vs 2.94% for TDTF. Both ETFs have the same 0.18% expense ratio. On volatility, TDTT has been the lower-risk option at 0.45%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, TDTT has performed better with a 3.10% return vs 2.94%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TDTT and TDTF have the same expense ratio: 0.18% per year.
TDTF has the higher dividend yield at 4.71%, compared with 4.55% for TDTT.
TDTT tracks iBoxx 3-Year Target Duration TIPS, while TDTF tracks iBoxx 5-Year Target Duration TIPS.
TDTT currently has the higher Sharpe Ratio (2.43 vs 1.56), 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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