Data as of Sep 4, 2026. Both funds on the fields they both publish, from the same sources.
BND vs SPY
Vanguard Total Bond Market Index Fund and SPDR S&P 500 ETF Trust.
| BND Vanguard Total Bond Market Index Fund | SPY SPDR S&P 500 ETF Trust | |
|---|---|---|
| Where it sits | Core fund | Core fund |
| Issuer | Vanguard | State Street |
| What it is | US aggregate bonds | S&P 500, book from IVV |
| Total return, 1 year | +1.3% | +20.0% |
| S&P 500 over the same days | +20.0% | +20.0% |
| Gap to the S&P 500 | −18.7 pts | +0.0 pts |
| Expense ratio | 0.03% | not published |
| Holdings | n/a | 504 |
BND in plain words
BND is a bond fund tracking US aggregate bonds. Over the year to Sep 4, 2026 it returned +1.3% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year.
SPY in plain words
SPY is a index equity fund tracking S&P 500, book from IVV. Over the year to Sep 4, 2026 it returned +20.0% with distributions reinvested, against +20.0% for the S&P 500 and +25.6% for the Nasdaq-100. By its holdings filed for Jun 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 36.4%.
Questions people ask
- Which returned more over the last year, BND or SPY?
- In the year to Sep 4, 2026, with distributions reinvested, BND returned +1.3% and SPY returned +20.0%, so SPY returned more. One year is one year; the longer windows are in the table.
Other comparisons
Where to next
Cite this page. ETFIQ, BND against SPY, data as of Sep 4, 2026. https://etfiq.com/compare/any/BND-SPY.html Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. ETFIQ publishes the same fields for every fund and suggests no allocation. Standards and sources