Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
AOR vs VO: how they differ
AOR and VO hold 0% of their weight in the same names, and VO returned more over the year.
iShares Core 60/40 Balanced Allocation ETF and Vanguard Mid-Cap Index Fund.
What they hold in common
By the books each fund has filed, AOR and VO hold 0% of their money in the same securities at the same weight.
| Only in AOR | Only in VO |
|---|---|
| iShares Core S&P 500 ETF 35.07% | Vertiv Holdings Co 1.23% |
| iShares Core Universal USD Bond ETF 32.09% | Western Digital Corp 1.07% |
| iShares Core MSCI International Develope 17.02% | Seagate Technology Holdings PLC 1.05% |
| iShares Core MSCI Emerging Markets ETF 7.29% | Quanta Services Inc 1.05% |
| iShares Core International Aggregate Bon 5.57% | Howmet Aerospace Inc 1.04% |
| iShares Core S&P Mid-Cap ETF 1.99% | Cummins Inc 0.95% |
| iShares Core S&P Small-Cap ETF 0.96% | Datadog Inc 0.84% |
| Bloom Energy Corp 0.79% |
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 Apr 30, 2026 and Jun 30, 2026.
| AOR iShares Core 60/40 Balanced Allocation ETF | VO Vanguard Mid-Cap Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Core 60/40 Balanced Allocation | Mid-Cap |
| Total return, 1 year | +11.3% | +12.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −6.2 pts | −5.5 pts |
| Expense ratio | 0.15% | 0.03% |
| Already in the S&P 500 | 0.0% | 91.4% |
| Holdings | 7 | 282 |
AOR in plain words
AOR is an index equity fund tracking the Core 60/40 Balanced Allocation. Over the year to Sep 11, 2026 it returned +11.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings filed for Apr 30, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 7 positions, with the top ten at 100.0%.
VO in plain words
VO is an index equity fund tracking the Mid-Cap. Over the year to Sep 11, 2026 it returned +12.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. By its holdings filed for Jun 30, 2026, 91% of the fund by weight is stocks the S&P 500 also holds, across 282 positions, with the top ten at 9.6%. It sat 4.1% below its high of Aug 14, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, AOR or VO?
- In the year to Sep 12, 2026, with distributions reinvested, AOR returned +11.3% and VO returned +12.0%, so VO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, AOR or VO?
- AOR charges 0.15% a year and VO charges 0.03%, so VO is cheaper. Fees come from each fund's prospectus.
- How much do AOR and VO overlap with the S&P 500?
- By their latest filed holdings, 0% of AOR and 91% of VO by weight is stocks the S&P 500 already holds. Between the two funds, 0% of their books are the same securities at the same weight.
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, AOR against VO, data as of Sep 12, 2026. https://etfiq.com/compare/any/AOR-VO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources