FlexShares iBoxx 3-Year Target Duration TIPS Index Fund
U.S. bond index ETF · tracks iBoxx 3-Year Target Duration TIPS Index
As of its 2026 Q2 report, FlexShares iBoxx 3-Year Target Duration TIPS Index Fund held 22 positions with $2.58B in net assets. Its ten largest holdings made up 64.9% of the fund. The TDTT share class costs 0.18% a year. Over the 12 months to May 2026, TDTT returned 4.3%, with dividends reinvested. In 2026 Q3 it added 2 new positions and exited 1.
The Fund seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the iBoxx 3-Year Target Duration TIPS Index (the Underlying Index).
The fund tracks the iBoxx 3-Year Target Duration TIPS Index, which holds inflation-protected U.S. Treasury securities with a targeted average modified adjusted duration of approximately three years and maturities between one and ten years, rebalancing monthly to maintain that duration target. The fund generally replicates the index by holding substantially all of its constituent securities in the same proportions, though it may use representative sampling when full replication is impracticable, which could cause the fund's performance to diverge from the index.
What you own
| Company | Weight | Value | Shares |
|---|---|---|---|
United States of America 2.13% · due 2029-04-15 | 10.75% | $277.96M | — |
United States of America 0.88% · due 2029-01-15 | 10.71% | $276.77M | — |
United States of America 2.38% · due 2028-10-15 | 10.68% | $275.94M | — |
United States of America 3.88% · due 2029-04-15 | 9.52% | $246.16M | — |
United States of America 2.50% · due 2029-01-15 | 5.13% | $132.51M | — |
United States of America 1.13% · due 2030-10-15 | 3.74% | $96.55M | — |
United States of America 1.63% · due 2030-04-15 | 3.72% | $96.08M | — |
United States of America 0.13% · due 2031-07-15 | 3.64% | $94.06M | — |
United States of America 0.13% · due 2030-07-15 | 3.56% | $91.92M | — |
United States of America 0.13% · due 2031-01-15 | 3.50% | $90.49M | — |
All 22 holdings, with the share counts as filed, open with a free account.
What the fund is made of
Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.
| Bonds | 99.28% |
How it has done
TDTT share class · total returns with dividends reinvested
Volatility over the last 12 months: 1.77%. Past returns are a record, not a forecast.
Jun 2026 and Jul 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.
Fees & fund details
FlexShares iBoxx 3-Year Target Duration TIPS Index Fund is a U.S. bond index ETF that tracks the iBoxx 3-Year Target Duration TIPS Index.
- Asset class
- Bonds
- Region
- United States
- Management
- Index (passive)
- Fund type
- ETF
- Rate sensitivity
- Short duration
- Expense ratio, by class
- 0.18%· TDTT 0.18%
- Portfolio turnover
- 86.00% a year · as of 2026 Q1
Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.
Turnover is how much of the portfolio was replaced in a year.
Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.
What changed this quarter
Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.
2 new· the largest 1
1 exited
Debt profile
What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-04-30
Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.
| Fixed rate | 100.0% |
Share of the fund's debt value in each maturity band, shortest first.
| <1y | 3.1% |
| 1-3y | 67.6% |
| 3-5y | 24.9% |
| 5-10y | 4.4% |
Based on what filers reported; a filer that never reported a flag also reads as none.
Risk profile
Interest-rate and credit-spread sensitivity, both in years · as of 2026Q2
This fund filed the credit-spread disclosure and reported no sensitivity — measured, and the answer is none.
Where the loss would come from. The two shocks are the same size, so this is the balance of the fund's two sensitivities rather than a bet on one moving more.
| Interest rates | 100% |
Filers report the impact of a 0.01% move only, so the total is our own scaling of that one number and overstates the loss on most bonds — read it as approximate, never as precise. The two sensitivities overlap rather than add up: they measure the same positions against different shocks, which is why the durations above are shown side by side and never summed.
Share of duration at each point, shortest first. A positive figure loses value when spreads widen; a negative one offsets — a credit hedge.
| 3 mo | 0.00 yr | 0% |
| 1 yr | 0.61 yr | 37% |
| 5 yr | 1.00 yr | 62% |
| 10 yr | 0.01 yr | 1% |
Show the numbers
| Tenor | Rate yrs | IG yrs | HY yrs | IG $/bp | HY $/bp |
|---|---|---|---|---|---|
| 3 mo | +0.00 | +0.00 | +0.00 | $0 | $0 |
| 1 yr | +0.61 | +0.00 | +0.00 | $0 | $0 |
| 5 yr | +1.00 | +0.00 | +0.00 | $0 | $0 |
| 10 yr | +0.01 | +0.00 | +0.00 | $0 | $0 |
| 30 yr | +0.00 | +0.00 | +0.00 | $0 | $0 |
Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.
A newer credit-spread reading (2026Q3) is on file. This page holds one quarter across every figure on it, so that one appears here next quarter.
Understand how this fund fits with the rest.
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