TAXI vs. TDTT
TAXI (Northern Trust Intermediate Tax-Exempt Bond ETF) and TDTT (FlexShares iBoxx 3-Year Target Duration TIPS Index Fund) are both exchange-traded funds - TAXI is a Municipal Bonds fund tracking the ICE Intermediate Term Focused Municipal Bond Index, while TDTT is a Inflation-Protected Bonds fund tracking the iBoxx 3-Year Target Duration TIPS. Both are passively managed. At a 0.36 correlation, their price movements are largely independent. TAXI charges 0.05%/yr vs 0.18%/yr for TDTT.
Performance
TAXI vs. TDTT - Performance Comparison
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Returns By Period
In the year-to-date period, TAXI achieves a 1.00% return, which is significantly lower than TDTT's 1.76% return.
TAXI
- 1D
- 0.06%
- 1M
- 0.52%
- YTD
- 1.00%
- 6M
- 1.53%
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
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%
TAXI vs. TDTT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
TAXI Northern Trust Intermediate Tax-Exempt Bond ETF | 1.00% | 3.35% |
TDTT FlexShares iBoxx 3-Year Target Duration TIPS Index Fund | 1.76% | 0.97% |
Correlation
The correlation between TAXI and TDTT is 0.36, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since Aug 20, 2025 | 0.36 |
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Return for Risk
TAXI vs. TDTT — Risk / Return Rank
TAXI
TDTT
TAXI vs. TDTT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Northern Trust Intermediate Tax-Exempt Bond ETF (TAXI) 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.
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
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Sharpe Ratios by Period
| TAXI | TDTT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | — | 2.43 | — |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.78 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.92 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 2.95 | 0.69 | +2.26 |
Drawdowns
TAXI vs. TDTT - Drawdown Comparison
The maximum TAXI drawdown since its inception was -2.23%, smaller than the maximum TDTT drawdown of -6.97%. Use the drawdown chart below to compare losses from any high point for TAXI and TDTT.
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Drawdown Indicators
| TAXI | TDTT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -2.23% | -6.97% | +4.74% |
Max Drawdown (1Y)Largest decline over 1 year | — | -0.90% | — |
Max Drawdown (3Y)Largest decline over 3 years | — | -1.53% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -6.97% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -6.97% | — |
Current DrawdownCurrent decline from peak | -0.74% | -0.18% | -0.56% |
Average DrawdownAverage peak-to-trough decline | -0.46% | -1.60% | +1.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | — | 0.28% | — |
Volatility
TAXI vs. TDTT - Volatility Comparison
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Volatility by Period
| TAXI | TDTT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | — | 0.45% | — |
Volatility (6M)Calculated over the trailing 6-month period | — | 1.21% | — |
Volatility (1Y)Calculated over the trailing 1-year period | 1.90% | 1.84% | +0.06% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 1.90% | 3.67% | -1.77% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.90% | 3.38% | -1.48% |
TAXI vs. TDTT - Expense Ratio Comparison
TAXI has a 0.05% 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
TAXI vs. TDTT - Dividend Comparison
TAXI's dividend yield for the trailing twelve months is around 2.00%, less than TDTT's 4.55% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
TAXI Northern Trust Intermediate Tax-Exempt Bond ETF | 2.00% | 0.85% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
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% |
Frequently Asked Questions
TAXI and TDTT have a correlation of 0.36, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, TAXI is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.
TAXI is cheaper with a 0.05% expense ratio, compared with 0.18% for TDTT.
TDTT has the higher dividend yield at 4.55%, compared with 2.00% for TAXI.
TAXI is categorized as Municipal Bonds, while TDTT is Inflation-Protected Bonds. TAXI tracks ICE Intermediate Term Focused Municipal Bond Index, while TDTT tracks iBoxx 3-Year Target Duration TIPS. Their fees differ too: 0.05% for TAXI and 0.18% for TDTT.
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