Data as of Oct 28, 2026.
IGSB vs VGLT: Differences, Returns & Fees
IGSB's duration was 2.7 years on Aug 31, 2026 and VGLT's 13.5 on May 31, 2026; VGLT charges 0.03% to IGSB's 0.04%.
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Net assets: $23.7bn on Oct 28, 2026 for iShares 1-5 Year Investment Grade Corporate Bond ETF, and $10.4bn on Sep 30, 2026 for Vanguard Long-Term Treasury ETF.
Pair scorecard
VGLT costs 0.01 points a year less; their one-year returns differ by 8.0 points; IGSB is 2.3 times larger.
| Measure | IGSB | VGLT |
|---|---|---|
| Return | ||
| Total return, 1 year | +1.3% | −6.7% |
| Drawdown | ||
| Below its high | 38.8%, high on Aug 4, 2020 | |
| Benchmark | ||
| What it tracks | ICE BofA 1-5 Year US Corporate Index | Bloomberg U.S. Long Treasury Index |
| Cost and size | ||
| Expense ratio | 0.04% | 0.03% |
| Net assets, as of Sep 30, 2026 | $23.4bn | $10.4bn |
| Holdings | ||
| Holdings in common | 0% | |
Holdings in common uses holdings dated May 31, 2026 and Aug 31, 2026. Method
What they share
By the books each fund has filed, IGSB and VGLT hold 0% of their money in the same securities at the same weight. Holdings dated May 31, 2026 and Aug 31, 2026.
half
0% in common
Only in one fund ↓
Side by side
IGSB and VGLT on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IGSB
IGSB tracks an index of 1-5 Year Investment Grade Corporate Bond. Over the year to Oct 28, 2026 it returned +1.3% with distributions reinvested. The prospectus expense ratio is 0.04% a year.
VGLT
VGLT tracks an index of Long-term Treasury. Over the year to Oct 28, 2026 it returned −6.7% with distributions reinvested, against −6.7% for its benchmark, the Bloomberg U.S. Long Treasury Index. The prospectus expense ratio is 0.03% a year. It sat 38.8% below its high of Aug 4, 2020 on Oct 28, 2026.
Questions people ask
- Which returned more over the last year, IGSB or VGLT?
- In the year to Oct 28, 2026, with distributions reinvested, IGSB returned +1.3% and VGLT −6.7%.
- Which is cheaper, IGSB or VGLT?
- VGLT is cheaper, by 0.01 percentage points a year. That is about $1 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, IGSB against VGLT, data as of Oct 28, 2026. https://etfiq.com/compare/any/igsb-vs-vglt
ETFIQ. (Oct 28, 2026). IGSB against VGLT. Retrieved from https://etfiq.com/compare/any/igsb-vs-vglt
[IGSB against VGLT (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/igsb-vs-vglt)
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