Data as of Oct 28, 2026.
IBDU vs SUSB: Differences, Returns & Fees
IBDU's duration was 2.6 years on Jul 31, 2026 and SUSB's 2.7 on Aug 31, 2026; IBDU charges 0.10% to SUSB's 0.12%.
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Net assets: $4.0bn on Oct 27, 2026 for iShares iBonds Dec 2029 Term Corporate ETF, and $1.3bn on Oct 28, 2026 for iShares ESG Aware 1-5 Year USD Corporate Bond ETF.
Pair scorecard
IBDU costs 0.02 points a year less; their one-year returns differ by 0.1 points; IBDU is 3.1 times larger.
| Measure | IBDU | SUSB |
|---|---|---|
| Return | ||
| Total return, 1 year | +1.3% | +1.2% |
| Benchmark | ||
| What it tracks | Bloomberg December 2029 Maturity Corporate Index | Bloomberg MSCI US Corporate 1-5 Year ESG Focus Index |
| Cost and size | ||
| Expense ratio | 0.10% | 0.12% |
| Net assets, as of Oct 26, 2026 | $4.0bn | $1.3bn |
| Holdings | ||
| Holdings in common | 17% | |
Holdings in common uses holdings dated Jul 31, 2026 and Aug 31, 2026. Method
Risk and return
Sep 27, 2019 to Oct 23, 2026 · 369 weekly returns · each against IUSBSUSB returned more: +18.3% to +16.3%. SUSB swung less: 5.2% to 8.3%. SUSB fell less at its worst: −11.4% to −18.9%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | IBDU | SUSB | IUSB | Edge | How it is measured |
|---|---|---|---|---|---|
| Return | |||||
| Total return | +16.3% | +18.3% | SUSB | Price change plus distributions, reinvested. | |
| Annualized | +2.1% | +2.4% | SUSB | Total return as a yearly rate. | |
| Price return | −10.3% | −3.5% | SUSB | Price change alone, distributions left out. | |
| Risk | |||||
| Volatility | 8.3% | 5.2% | SUSB | Spread of weekly returns, annualized. Lower is steadier. | |
| Downside deviation | 6.4% | 3.7% | SUSB | Like volatility, counting only weeks below the Treasury bill rate. | |
| Max drawdown | −18.9% | −11.4% | SUSB | Deepest fall from a high to the low after it. | |
| Upside capture | 109.0% | 53.1% | 100.0% | IBDU | Share of its benchmark's rise caught in the weeks it rose. |
| Downside capture | 100.2% | 47.9% | 100.0% | SUSB | Share of its benchmark's fall taken in the weeks it fell. Lower is better. |
| Beta | 1.21 | 0.72 | 1.00 | SUSB lower | How far it moves for each 1% its benchmark moves. |
| R squared | 0.80 | 0.70 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | |||||
| Sharpe | −0.05 | −0.07 | IBDU | Return above Treasury bills per unit of volatility. | |
| Sortino | −0.06 | −0.10 | IBDU | Return above Treasury bills per unit of downside deviation. | |
| Treynor | −0.003 | −0.005 | −0.017 | IBDU | Return above Treasury bills per unit of beta. |
| Calmar | 0.11 | 0.21 | SUSB | Annualized return divided by the max drawdown. | |
| Against the benchmark | |||||
| Benchmark | IUSB | IUSB | IUSB | The ETF each fund is measured against. | |
| Alpha | +1.7% a year | +0.9% a year | 0.0% | Not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | 1.21 | 0.80 | Not an edge | How sure the alpha is. Below 2, it could be chance. | |
| Alpha range | −1.1% to +4.4% | −1.3% to +3.0% | Both include zero | The 95% range for the yearly alpha. | |
| Information ratio | 0.34 | 0.40 | SUSB | Return against its benchmark per unit of tracking error. | |
| Tracking error | 3.9% | 3.3% | 0.0% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 369 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IBDU and SUSB hold 17% of their money in the same securities at the same weight. Holdings dated Jul 31, 2026 and Aug 31, 2026.
half
17% in common
Only in one fund ↓
Side by side
IBDU and SUSB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IBDU and SUSB are built for the same job. How do they differ in cost, holdings and results?
- What each follows. IBDU follows Bloomberg December 2029 Maturity Corporate Index and SUSB follows Bloomberg MSCI US Corporate 1-5 Year ESG Focus Index.
- Holdings in common. 17% of the weight is in the same securities (holdings dated Jul 31, 2026 and Aug 31, 2026).
- Size. IBDU has $4.0bn in net assets and SUSB $1.3bn (net assets, as of Oct 26, 2026); IBDU is 3.1 times larger.
Data as of Oct 28, 2026.
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IBDU
IBDU tracks an index. Over the year to Oct 28, 2026 it returned +1.3% with distributions reinvested, against −1.2% for its benchmark, the Bloomberg U.S. Universal Index. The prospectus expense ratio is 0.10% a year.
SUSB
SUSB tracks an index. Over the year to Oct 28, 2026 it returned +1.2% with distributions reinvested, against −1.2% for its benchmark, the Bloomberg U.S. Universal Index. The prospectus expense ratio is 0.12% a year.
Questions people ask
- Which returned more over the last year, IBDU or SUSB?
- In the year to Oct 28, 2026, with distributions reinvested, IBDU returned +1.3% and SUSB +1.2%.
- Which is cheaper, IBDU or SUSB?
- IBDU is cheaper, by 0.02 percentage points a year. That is about $2 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.
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ETFIQ, IBDU against SUSB, data as of Oct 28, 2026. https://etfiq.com/compare/any/ibdu-vs-susb
ETFIQ. (Oct 28, 2026). IBDU against SUSB. Retrieved from https://etfiq.com/compare/any/ibdu-vs-susb
[IBDU against SUSB (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/ibdu-vs-susb)
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