Data as of Oct 28, 2026.
IBTI vs SPTS: Differences, Returns & Fees
IBTI's duration was 1.8 years on Jul 31, 2026 and SPTS's 1.9 on Jun 30, 2026; SPTS charges 0.03% to IBTI's 0.07%.
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askIQ about IBTI and SPTSNet assets on Oct 27, 2026: $2.2bn for iShares iBonds Dec 2028 Term Treasury ETF and $7.3bn for State Street SPDR Portfolio Short Term Treasury ETF.
Pair scorecard
SPTS costs 0.04 points a year less; their one-year returns differ by 0.1 points; SPTS is 3.3 times larger.
| Measure | IBTI | SPTS |
|---|---|---|
| Return | ||
| Total return, 1 year | +1.6% | +1.7% |
| Drawdown | ||
| Below its high | 3.2%, high on Aug 4, 2020 | |
| Benchmark | ||
| What it tracks | ICE 2028 Maturity US Treasury Index | Bloomberg 1-3 Year U.S. Treasury Index |
| Cost and size | ||
| Expense ratio | 0.07% | 0.03% |
| Net assets, as of Oct 27, 2026 | $2.2bn | $7.3bn |
| Holdings | ||
| Holdings in common | 47% | |
Holdings in common uses holdings dated Jun 30, 2026 and Jul 31, 2026. Method
Risk and return
Mar 6, 2020 to Oct 23, 2026 · 346 weekly returnsSPTS returned more: +11.3% to −0.7%. SPTS swung less: 1.7% to 4.5%. SPTS fell less at its worst: −5.6% to −17.9%.
Full scorecard
9 measures, with how each is measured Open ↓
| Measure | IBTI | SPTS | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | −0.7% | +11.3% | SPTS | Price change plus distributions, reinvested. |
| Annualized | −0.1% | +1.6% | SPTS | Total return as a yearly rate. |
| Price return | −16.1% | −5.7% | SPTS | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 4.5% | 1.7% | SPTS | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 3.3% | 1.2% | SPTS | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −17.9% | −5.6% | SPTS | Deepest fall from a high to the low after it. |
| Risk-adjusted | ||||
| Sharpe | −0.67 | −0.81 | IBTI | Return above Treasury bills per unit of volatility. |
| Sortino | −0.89 | −1.11 | IBTI | Return above Treasury bills per unit of downside deviation. |
| Calmar | −0.01 | 0.29 | SPTS | Annualized return divided by the max drawdown. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 346 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IBTI and SPTS hold 47% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Jul 31, 2026.
half
47% in common
Only in one fund ↓
Side by side
IBTI and SPTS on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IBTI and SPTS are built for the same job. How do they differ in cost, holdings and results?
- What each follows. IBTI follows ICE 2028 Maturity US Treasury Index and SPTS follows Bloomberg 1-3 Year U.S. Treasury Index.
- Holdings in common. 47% of the weight is in the same securities (holdings dated Jul 31, 2026 and Jun 30, 2026).
- Size. IBTI has $2.2bn in net assets and SPTS $7.3bn (net assets, as of Oct 27, 2026); SPTS is 3.3 times larger.
Data as of Oct 28, 2026.
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IBTI
IBTI tracks an index. Over the year to Oct 28, 2026 it returned +1.6% with distributions reinvested. The prospectus expense ratio is 0.07% a year. It sat 3.2% below its high of Aug 4, 2020 on Oct 28, 2026.
SPTS
SPTS tracks an index. Over the year to Oct 28, 2026 it returned +1.7% with distributions reinvested, against −1.4% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.03% a year.
Questions people ask
- Which returned more over the last year, IBTI or SPTS?
- In the year to Oct 28, 2026, with distributions reinvested, IBTI returned +1.6% and SPTS +1.7%.
- Which is cheaper, IBTI or SPTS?
- SPTS is cheaper, by 0.04 percentage points a year. That is about $4 on $10,000 held for a year. Fees come from each fund's prospectus.
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.
Cite this pageCitation, APA and Markdown
ETFIQ, IBTI against SPTS, data as of Oct 28, 2026. https://etfiq.com/compare/any/ibti-vs-spts
ETFIQ. (Oct 28, 2026). IBTI against SPTS. Retrieved from https://etfiq.com/compare/any/ibti-vs-spts
[IBTI against SPTS (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/ibti-vs-spts)
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