Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
VO vs VOX: how they differ
VO and VOX hold 3% of their weight in the same names, and VO returned more over the year.
Vanguard Mid-Cap Index Fund and Vanguard Communication Services Index Fund.
What they hold in common
By the books each fund has filed, VO and VOX hold 3% of their money in the same securities at the same weight.
| Holding | VO | VOX |
|---|---|---|
| Warner Bros Discovery Inc | 0.62% | 2.74% |
| Electronic Arts Inc | 0.50% | 2.00% |
| Take-Two Interactive Software Inc | 0.43% | 2.09% |
| ROBLOX Corp | 0.34% | 1.37% |
| Live Nation Entertainment Inc | 0.29% | 1.65% |
| Reddit Inc | 0.23% | 1.07% |
| AST SpaceMobile Inc | 0.12% | 1.42% |
| Fox Corp | 0.09% | 0.60% |
| TKO Group Holdings Inc | 0.06% | 0.83% |
| Charter Communications Inc | 0.06% | 0.73% |
| Fox Corp | 0.06% | 0.53% |
| Only in VO | Only in VOX |
|---|---|
| Vertiv Holdings Co 1.23% | Meta Platforms Inc 21.12% |
| Western Digital Corp 1.07% | Alphabet Inc 16.14% |
| Seagate Technology Holdings PLC 1.05% | Alphabet Inc 10.61% |
| Quanta Services Inc 1.05% | Netflix Inc 4.77% |
| Howmet Aerospace Inc 1.04% | Verizon Communications Inc 4.17% |
| Cummins Inc 0.95% | Walt Disney Co/The 3.96% |
| Datadog Inc 0.84% | AT&T Inc 3.69% |
| Bloom Energy Corp 0.79% | T-Mobile US Inc 2.50% |
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 Jun 30, 2026 and May 31, 2026.
| VO Vanguard Mid-Cap Index Fund | VOX Vanguard Communication Services Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Vanguard | Vanguard |
| What it is | Mid-Cap | Communication Services |
| Total return, 1 year | +12.0% | +2.9% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −5.5 pts | −14.6 pts |
| Expense ratio | 0.03% | 0.09% |
| Already in the S&P 500 | 91.4% | 84.5% |
| Holdings | 282 | 114 |
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.
VOX in plain words
VOX is an index equity fund tracking the Communication Services. Over the year to Sep 11, 2026 it returned +2.9% 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 May 31, 2026, 84% of the fund by weight is stocks the S&P 500 also holds, across 114 positions, with the top ten at 72.1%. It sat 4.3% below its high of Jan 29, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, VO or VOX?
- In the year to Sep 12, 2026, with distributions reinvested, VO returned +12.0% and VOX returned +2.9%, so VO returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, VO or VOX?
- VO charges 0.03% a year and VOX charges 0.09%, so VO is cheaper. Fees come from each fund's prospectus.
- How much do VO and VOX overlap with the S&P 500?
- By their latest filed holdings, 91% of VO and 84% of VOX by weight is stocks the S&P 500 already holds. Between the two funds, 3% of their books are the same securities at the same weight.
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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, VO against VOX, data as of Sep 12, 2026. https://etfiq.com/compare/any/VO-VOX Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources