STIP vs. TDTT
STIP (iShares 0-5 Year TIPS Bond ETF) and TDTT (FlexShares iBoxx 3-Year Target Duration TIPS Index Fund) are both Inflation-Protected Bonds funds - STIP tracks the Barclays Capital U.S. Treasury Inflation-Protected Securities (TIPS) 0-5 Years Index (Series-L) while TDTT tracks the iBoxx 3-Year Target Duration TIPS. Both are passively managed. Over the past 10 years, STIP returned 3.18%/yr vs 3.11%/yr for TDTT. Their correlation of 0.83 suggests significant overlap in exposure. STIP charges 0.06%/yr vs 0.18%/yr for TDTT.
Performance
STIP vs. TDTT - Performance Comparison
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Returns By Period
In the year-to-date period, STIP achieves a 2.04% return, which is significantly higher than TDTT's 1.81% return. Both investments have delivered pretty close results over the past 10 years, with STIP having a 3.18% annualized return and TDTT not far behind at 3.11%.
STIP
- 1D
- 0.00%
- 1M
- 0.03%
- YTD
- 2.04%
- 6M
- 2.03%
- 1Y
- 4.68%
- 3Y*
- 5.23%
- 5Y*
- 3.37%
- 10Y*
- 3.18%
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%
STIP vs. TDTT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
STIP iShares 0-5 Year TIPS Bond ETF | 2.04% | 6.03% | 4.77% | 4.63% | -3.02% | 5.68% | 5.18% | 4.89% | 0.54% | 0.74% |
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% |
Correlation
The correlation between STIP and TDTT is 0.91, 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 | 0.91 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.93 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.95 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.90 |
Correlation (All Time) Calculated using the full available price history since Sep 26, 2011 | 0.83 |
The correlation between STIP and TDTT shifts across timeframes, from 0.83 (all time) to 0.95 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
STIP vs. TDTT — Risk / Return Rank
STIP
TDTT
STIP vs. TDTT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares 0-5 Year TIPS Bond ETF (STIP) and FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT). 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.
| STIP | TDTT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.69 | ||
| Sortino ratioReturn per unit of downside risk | +1.38 | ||
| Omega ratioGain probability vs. loss probability | 1.69 | 1.51 | +0.18 |
| Calmar ratioReturn relative to maximum drawdown | 6.76 | 5.17 | +1.59 |
| Martin ratioReturn relative to average drawdown | 26.37 | 16.59 | +9.77 |
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
| STIP | TDTT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 3.23 | 2.54 | +0.69 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 1.23 | 0.78 | +0.45 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 1.30 | 0.92 | +0.38 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.07 | 0.69 | +0.38 |
Drawdowns
STIP vs. TDTT - Drawdown Comparison
The maximum STIP drawdown since its inception was -5.50%, smaller than the maximum TDTT drawdown of -6.97%. Use the drawdown chart below to compare losses from any high point for STIP and TDTT.
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Drawdown Indicators
| STIP | TDTT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.50% | -6.97% | +1.47% |
Max Drawdown (1Y)Largest decline over 1 year | -0.69% | -0.90% | +0.21% |
Max Drawdown (3Y)Largest decline over 3 years | -0.95% | -1.53% | +0.58% |
Max Drawdown (5Y)Largest decline over 5 years | -5.50% | -6.97% | +1.47% |
Max Drawdown (10Y)Largest decline over 10 years | -5.50% | -6.97% | +1.47% |
Current DrawdownCurrent decline from peak | -0.03% | -0.14% | +0.11% |
Average DrawdownAverage peak-to-trough decline | -0.99% | -1.60% | +0.61% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.18% | 0.28% | -0.10% |
Volatility
STIP vs. TDTT - Volatility Comparison
The current volatility for iShares 0-5 Year TIPS Bond ETF (STIP) is 0.40%, while FlexShares iBoxx 3-Year Target Duration TIPS Index Fund (TDTT) has a volatility of 0.46%. This indicates that STIP experiences smaller price fluctuations and is considered to be less risky than TDTT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| STIP | TDTT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.40% | 0.46% | -0.06% |
Volatility (6M)Calculated over the trailing 6-month period | 0.99% | 1.21% | -0.22% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.46% | 1.85% | -0.39% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.75% | 3.67% | -0.92% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.45% | 3.38% | -0.93% |
STIP vs. TDTT - Expense Ratio Comparison
STIP has a 0.06% expense ratio, which is lower than TDTT's 0.18% 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
STIP vs. TDTT - Dividend Comparison
STIP's dividend yield for the trailing twelve months is around 4.30%, less than TDTT's 4.54% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
STIP iShares 0-5 Year TIPS Bond ETF | 4.30% | 4.11% | 2.62% | 2.84% | 6.04% | 4.15% | 1.40% | 2.06% | 2.44% | 1.59% | 0.89% |
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% |
Frequently Asked Questions
With a correlation of 0.91, STIP and TDTT move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
TDTT has higher volatility (0.46%) compared to STIP (0.40%). In terms of maximum drawdown, STIP dropped -5.50% vs TDTT's -6.97%.
On 10-year performance, STIP leads with 3.18% vs 3.11% for TDTT. On fees, STIP is cheaper at 0.06% 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, STIP has performed better with a 3.18% return vs 3.11%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
STIP is cheaper with a 0.06% expense ratio, compared with 0.18% for TDTT.
TDTT has the higher dividend yield at 4.54%, compared with 4.30% for STIP.
STIP tracks Barclays Capital U.S. Treasury Inflation-Protected Securities (TIPS) 0-5 Years Index (Series-L), while TDTT tracks iBoxx 3-Year Target Duration TIPS. They also come from different issuers: iShares and Northern Trust. Their fees differ too: 0.06% for STIP and 0.18% for TDTT.
STIP currently has the higher Sharpe Ratio (3.23 vs 2.54), 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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