Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
VDE vs VO: how they differ
VDE and VO hold 7% of their weight in the same names, and VDE returned more over the year.
Vanguard Energy Index Fund and Vanguard Mid-Cap Index Fund.
What they hold in common
By the books each fund has filed, VDE and VO hold 7% of their money in the same securities at the same weight.
| Holding | VDE | VO |
|---|---|---|
| Valero Energy Corp | 3.19% | 0.75% |
| Marathon Petroleum Corp | 3.29% | 0.72% |
| SLB Ltd | 3.49% | 0.67% |
| Phillips 66 | 2.98% | 0.66% |
| Targa Resources Corp | 2.31% | 0.56% |
| Baker Hughes Co | 2.65% | 0.53% |
| ONEOK Inc | 2.22% | 0.53% |
| Cheniere Energy Inc | 2.07% | 0.49% |
| Devon Energy Corp | 2.12% | 0.46% |
| Williams Cos Inc/The | 3.65% | 0.44% |
| Occidental Petroleum Corp | 1.58% | 0.35% |
| Diamondback Energy Inc | 1.52% | 0.34% |
| Only in VDE | Only in VO |
|---|---|
| Exxon Mobil Corp 21.37% | Vertiv Holdings Co 1.23% |
| Chevron Corp 14.53% | Western Digital Corp 1.07% |
| ConocoPhillips 5.79% | Seagate Technology Holdings PLC 1.05% |
| EOG Resources Inc 3.06% | Quanta Services Inc 1.05% |
| TechnipFMC PLC 1.23% | Howmet Aerospace Inc 1.04% |
| Expand Energy Corp 0.95% | Cummins Inc 0.95% |
| Ovintiv Inc 0.70% | Datadog Inc 0.84% |
| DT Midstream Inc 0.63% | 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 Jun 30, 2026 and May 31, 2026.
| VDE Vanguard Energy Index Fund | VO Vanguard Mid-Cap Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | Vanguard | Vanguard |
| What it is | Energy | Mid-Cap |
| Total return, 1 year | +50.6% | +12.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | +33.1 pts | −5.5 pts |
| Expense ratio | 0.09% | 0.03% |
| Already in the S&P 500 | 81.6% | 91.4% |
| Holdings | 105 | 282 |
VDE in plain words
VDE is an index equity fund tracking the Energy. Over the year to Sep 11, 2026 it returned +50.6% 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, 82% of the fund by weight is stocks the S&P 500 also holds, across 105 positions, with the top ten at 64.0%.
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, VDE or VO?
- In the year to Sep 12, 2026, with distributions reinvested, VDE returned +50.6% and VO returned +12.0%, so VDE returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, VDE or VO?
- VDE charges 0.09% a year and VO charges 0.03%, so VO is cheaper. Fees come from each fund's prospectus.
- How much do VDE and VO overlap with the S&P 500?
- By their latest filed holdings, 82% of VDE and 91% of VO by weight is stocks the S&P 500 already holds. Between the two funds, 7% 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, VDE against VO, data as of Sep 12, 2026. https://etfiq.com/compare/any/VDE-VO Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources