Data as of Sep 13, 2026. Both funds on the fields they both publish, from the same sources.
IGSB vs SPY: how they differ
IGSB and SPY hold 0% of their weight in the same names, and SPY returned more over the year.
iShares 1-5 Year Investment Grade Corporate Bond ETF and SPDR S&P 500 ETF Trust.
What they hold in common
By the books each fund has filed, IGSB and SPY hold 0% of their money in the same securities at the same weight.
| Only in IGSB | Only in SPY |
|---|---|
| BLK CSH FND TREASURY SL AGENCY 0.56% | NVIDIA CORP 8.08% |
| EAGLE FUNDING LUXCO S. R.L. 144A 0.29% | APPLE INC 7.33% |
| SPACE EXPLORATION TECHNOLOGIES COR 144A 0.15% | MICROSOFT CORP 5.59% |
| DEUTSCHE TELEKOM INTERNATIONAL FIN 0.10% | AMAZON.COM INC 3.77% |
| BAYER US FINANCE II LLC 144A 0.09% | ALPHABET INC CL A 2.98% |
| JPMORGAN CHASE & CO MTN 0.09% | BROADCOM INC 2.61% |
| GOLDMAN SACHS BANK USA (FXD-FRN) 0.08% | ALPHABET INC CL C 2.39% |
| GOLDMAN SACHS GROUP INC/THE MTN 0.08% | META PLATFORMS INC CLASS A 2.16% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 10, 2026.
| IGSB iShares 1-5 Year Investment Grade Corporate Bond ETF | SPY SPDR S&P 500 ETF Trust | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | 1-5 Year Investment Grade Corporate Bond | S&P 500 |
| Total return, 1 year | +1.7% | +17.5% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −15.8 pts | 0.0 pts |
| Expense ratio | 0.04% | 0.09% |
| Holdings | 4496 | 505 |
IGSB in plain words
IGSB is a bond fund tracking the 1-5 Year Investment Grade Corporate Bond. Over the year to Sep 11, 2026 it returned +1.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.04% a year.
SPY in plain words
SPY is an index equity fund tracking the S&P 500. Over the year to Sep 11, 2026 it returned +17.5% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.09% a year. By its holdings filed for Sep 10, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 505 positions, with the top ten at 38.2%.
Questions people ask
- Which returned more over the last year, IGSB or SPY?
- In the year to Sep 13, 2026, with distributions reinvested, IGSB returned +1.7% and SPY returned +17.5%, so SPY returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IGSB or SPY?
- IGSB charges 0.04% a year and SPY charges 0.09%, so IGSB is cheaper. Fees come from each fund's prospectus.
Other comparisons
Where to next
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, IGSB against SPY, data as of Sep 13, 2026. https://etfiq.com/compare/any/igsb-vs-spy Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources