TDTT vs. STPZ
TDTT (FlexShares iBoxx 3-Year Target Duration TIPS Index Fund) and STPZ (PIMCO 1-5 Year US TIPS Index ETF) are both Inflation-Protected Bonds funds - TDTT tracks the iBoxx 3-Year Target Duration TIPS while STPZ tracks the ICE BofA US Inflation-Linked Treasury (1-5 Y). Both are passively managed. Over the past 10 years, TDTT returned 3.11%/yr vs 2.89%/yr for STPZ. Their correlation of 0.82 suggests significant overlap in exposure. TDTT charges 0.18%/yr vs 0.20%/yr for STPZ.
Performance
TDTT vs. STPZ - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with TDTT having a 1.81% return and STPZ slightly lower at 1.79%. Over the past 10 years, TDTT has outperformed STPZ with an annualized return of 3.11%, while STPZ has yielded a comparatively lower 2.89% annualized return.
TDTT
- 1D
- 0.00%
- 1M
- -0.06%
- YTD
- 1.81%
- 6M
- 1.77%
- 1Y
- 4.65%
- 3Y*
- 5.00%
- 5Y*
- 2.85%
- 10Y*
- 3.11%
STPZ
- 1D
- -0.00%
- 1M
- -0.09%
- YTD
- 1.79%
- 6M
- 1.77%
- 1Y
- 4.51%
- 3Y*
- 5.03%
- 5Y*
- 2.90%
- 10Y*
- 2.89%
TDTT vs. STPZ - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 1.81% | 6.67% | 3.96% | 4.40% | -4.58% | 5.49% | 6.84% | 5.74% | 0.25% | 0.43% |
STPZ PIMCO 1-5 Year US TIPS Index ETF | 1.79% | 6.40% | 4.30% | 4.28% | -4.49% | 5.64% | 5.44% | 4.83% | 0.04% | 0.51% |
Correlation
The correlation between TDTT and STPZ 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 | 0.92 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.94 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.89 |
Correlation (All Time) Calculated using the full available price history since Sep 26, 2011 | 0.82 |
The correlation between TDTT and STPZ shifts across timeframes, from 0.82 (all time) to 0.94 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
TDTT vs. STPZ — Risk / Return Rank
TDTT
STPZ
TDTT vs. STPZ - 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 PIMCO 1-5 Year US TIPS Index ETF (STPZ). 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 | STPZ | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.06 | ||
| Sortino ratioReturn per unit of downside risk | +0.26 | ||
| Omega ratioGain probability vs. loss probability | 1.51 | 1.49 | +0.03 |
| Calmar ratioReturn relative to maximum drawdown | 5.17 | 4.87 | +0.31 |
| Martin ratioReturn relative to average drawdown | 16.59 | 16.28 | +0.31 |
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 | STPZ | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.54 | 2.49 | +0.06 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.78 | 0.89 | -0.11 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.92 | 0.97 | -0.05 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.69 | 0.90 | -0.21 |
Drawdowns
TDTT vs. STPZ - Drawdown Comparison
The maximum TDTT drawdown since its inception was -6.97%, roughly equal to the maximum STPZ drawdown of -6.77%. Use the drawdown chart below to compare losses from any high point for TDTT and STPZ.
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Drawdown Indicators
| TDTT | STPZ | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -6.97% | -6.77% | -0.20% |
Max Drawdown (1Y)Largest decline over 1 year | -0.90% | -0.93% | +0.03% |
Max Drawdown (3Y)Largest decline over 3 years | -1.53% | -1.35% | -0.18% |
Max Drawdown (5Y)Largest decline over 5 years | -6.97% | -6.70% | -0.27% |
Max Drawdown (10Y)Largest decline over 10 years | -6.97% | -6.77% | -0.20% |
Current DrawdownCurrent decline from peak | -0.14% | -0.11% | -0.03% |
Average DrawdownAverage peak-to-trough decline | -1.60% | -1.31% | -0.29% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.28% | 0.28% | 0.00% |
Volatility
TDTT vs. STPZ - Volatility Comparison
FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) and PIMCO 1-5 Year US TIPS Index ETF (STPZ) have volatilities of 0.46% and 0.46%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TDTT | STPZ | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.46% | 0.46% | 0.00% |
Volatility (6M)Calculated over the trailing 6-month period | 1.21% | 1.20% | +0.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.85% | 1.83% | +0.02% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 3.67% | 3.29% | +0.38% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 3.38% | 2.98% | +0.40% |
TDTT vs. STPZ - Expense Ratio Comparison
TDTT has a 0.18% expense ratio, which is lower than STPZ's 0.20% 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%.
Dividends
TDTT vs. STPZ - Dividend Comparison
TDTT's dividend yield for the trailing twelve months is around 4.54%, more than STPZ's 4.10% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
STPZ PIMCO 1-5 Year US TIPS Index ETF | 4.10% | 3.65% | 1.97% | 1.63% | 5.88% | 3.65% | 1.86% | 1.76% | 2.23% | 1.51% | 0.65% | 0.49% |
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 4.54% | 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 STPZ 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.
STPZ has higher volatility (0.46%) compared to TDTT (0.46%). In terms of maximum drawdown, TDTT dropped -6.97% vs STPZ's -6.77%.
On 10-year performance, TDTT leads with 3.11% vs 2.89% for STPZ. On fees, TDTT is cheaper at 0.18% per year. Their volatility is very similar. 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 3.11% return vs 2.89%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
TDTT is cheaper with a 0.18% expense ratio, compared with 0.20% for STPZ.
TDTT has the higher dividend yield at 4.54%, compared with 4.10% for STPZ.
TDTT tracks iBoxx 3-Year Target Duration TIPS, while STPZ tracks ICE BofA US Inflation-Linked Treasury (1-5 Y). They also come from different issuers: Northern Trust and PIMCO. Their fees differ too: 0.18% for TDTT and 0.20% for STPZ.
TDTT currently has the higher Sharpe Ratio (2.54 vs 2.49), 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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