Data as of Oct 28, 2026.
TDTF vs TDTT: Differences, Returns & Fees
On Jul 31, 2026 TDTF's duration was 3.9 years and TDTT's 2.2; both charge 0.18%.
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askIQ about TDTF and TDTTNet assets on Jul 31, 2026: $1.0bn for Northern Trust iBoxx 5-Year Target Duration TIPS ETF and $2.5bn for Northern Trust iBoxx 3-Year Target Duration TIPS ETF.
Pair scorecard
Both cost 0.18% a year; their one-year returns differ by 1.8 points; TDTT is 2.5 times larger.
| Measure | TDTF | TDTT |
|---|---|---|
| Return | ||
| Total return, 1 year | −0.3% | +1.5% |
| Benchmark | ||
| What it tracks | iBoxx 5-Year Target Duration TIPS Index | iBoxx 3-Year Target Duration TIPS Index |
| Cost and size | ||
| Expense ratio | 0.18% | 0.18% |
| Net assets, as of Jul 31, 2026 | $1.0bn | $2.5bn |
| Holdings | ||
| Holdings in common | 35% | |
Holdings in common uses holdings dated Jul 31, 2026. Method
Risk and return
Sep 30, 2011 to Oct 23, 2026 · 786 weekly returnsTDTF returned slightly more: +37.9% to +36.7%. TDTT swung less: 3.0% to 4.8%. TDTT fell less at its worst: −7.0% to −11.5%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | TDTF | TDTT | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +37.9% | +36.7% | TDTF (slight) | Price change plus distributions, reinvested. |
| Annualized | +2.2% | +2.1% | TDTF (slight) | Total return as a yearly rate. |
| Price return | −7.7% | −6.3% | TDTT | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 4.8% | 3.0% | TDTT | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 3.5% | 2.2% | TDTT | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −11.5% | −7.0% | TDTT | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | 0.11 | 0.14 | TDTT | Return above Treasury bills per unit of volatility. |
| Sortino | 0.15 | 0.19 | TDTT | Return above Treasury bills per unit of downside deviation. |
| Calmar | 0.19 | 0.30 | TDTT | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 786 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, TDTF and TDTT hold 35% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026.
half
35% in common
Only in one fund ↓
Side by side
TDTF and TDTT on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
TDTF and TDTT are built for the same job. How do they differ in cost, holdings and results?
- What each follows. TDTF follows iBoxx 5-Year Target Duration TIPS Index and TDTT follows iBoxx 3-Year Target Duration TIPS Index.
- Holdings in common. 35% of the weight is in the same securities (holdings dated Jul 31, 2026).
- One-year total return (similar). Over 1 year to Oct 28, 2026 TDTF returned −0.3% and TDTT +1.5% with distributions reinvested, a gap of 1.8 points.
Data as of Oct 28, 2026.
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TDTF
TDTF tracks an index. Over the year to Oct 28, 2026 it returned −0.3% with distributions reinvested. The prospectus expense ratio is 0.18% a year.
TDTT
TDTT tracks an index. Over the year to Oct 28, 2026 it returned +1.5% with distributions reinvested.
Questions people ask
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, TDTF against TDTT, data as of Oct 28, 2026. https://etfiq.com/compare/any/tdtf-vs-tdtt
ETFIQ. (Oct 28, 2026). TDTF against TDTT. Retrieved from https://etfiq.com/compare/any/tdtf-vs-tdtt
[TDTF against TDTT (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/tdtf-vs-tdtt)
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