VO · Vanguard Mid-Cap Index Fund
VO tracks the Mid-Cap and returned +12.0% over the past year.
Key facts
Its ten largest equity positions
| Holding | Weight | |
|---|---|---|
| Vertiv Holdings Co | 1.23% | |
| Western Digital Corp | 1.07% | |
| Seagate Technology Holdings PLC | 1.05% | |
| Quanta Services Inc | 1.05% | |
| Howmet Aerospace Inc | 1.04% | |
| Cummins Inc | 0.95% | |
| Datadog Inc | 0.84% | |
| Bloom Energy Corp | 0.79% | |
| Constellation Energy Corp | 0.78% | |
| Robinhood Markets Inc | 0.77% |
Compare VO
Also against BIL, BINC, BITO, BND, BNDX, BOND, BOXX, BSV, BWET, CGBL, CGDV, CGGR, COWZ, CTA, DBMF, DFUS, DGRO, DGRW, DIA, DVY, DYNF, EDV, EEM, EFA, EMB, EMXC, EWJ, EWT, EWY, EWZ, EZU, FBCG, FDVV, FENI, FLKR, FNDX, FTEC, FXI, GARP, GDX, GLD, GLDM, GOVT, GRNY, HDV, HGER, HYG, HYMB, IALT, IAU, IBB, IDEV, IEF, IEFA, IEI, IEMG, IGIB, IGM, IGSB, IJH, IJR, IJS, IJT, ILF, INDA, ITOT, IUSB, IVV, IWB, IWC, IWD, IWF, IWM, IWO, IXUS, IYE, IYR, IYW, JAAA, JNK, KRE, LQD, LYTE, MAGS, MBB, MDY, MGK, MINT, MOAT, MTUM, MUB, NOBL, ONEQ, PDBC, PFF, PULS, PVAL, QQQ, QQQM, QUAL, RDVY, REMX, RSP, SCHB, SCHD, SCHF, SCHG, SCHH, SCHP, SCHX, SDY, SGOV, SHV, SHY, SIVR, SLV, SPHD, SPHQ, SPLG, SPMO, SPSB, SPY, SPYD, SPYG, TIP, TLT, URTH, USFR, USHY, USMV, USO, VB, VBIL, VBK, VBR, VCIT, VCLT, VCSH, VDC, VDE, VEA, VEU, VGIT, VGK, VGLT, VGSH, VGT, VHT, VIG, VLUE, VNQ, VOE, VONG, VOO, VOOG, VOX, VPL, VPU, VT, VTEB, VTI, VTIP, VTV, VTWO, VUG, VUSB, VWO, VXF, VXUS, VYM, VYMI, XBI, XHB, XLB, XLC, XLE, XLF, XLG, XLI, XLK, XLP, XLRE, XLU, XLV, XLY, XOP, XOVR, XRT.
Period by period
| Window | Total return | S&P 500 | Gap to S&P 500 | Gap to Nasdaq-100 |
|---|---|---|---|---|
| 3 months | +1.8% | +3.3% | −1.5 pts | +2.6 pts |
| 6 months | +12.9% | +16.0% | −3.1 pts | −7.8 pts |
| 1 year | +12.0% | +17.5% | −5.5 pts | −11.0 pts |
| 3 years | +56.6% | +77.9% | −21.3 pts | −38.5 pts |
| Since listing | +574.5% | +804.4% | −229.8 pts | −1099.4 pts |
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.
| What it tracks | Mid-Cap |
|---|---|
| Fund type | Index equity fund |
| Expense ratio (485BPOS XBRL, Apr 28, 2026) | 0.03% |
| Price | $81.03 |
| Listed since | Jan 4, 2010 |
| Net assets (SEC filing, whole fund, as filed for Jun 30, 2026) | $224.1bn |
| Below its high (ETFIQ) | −4.1% |
| Holdings | 282 |
| Top ten weight | 9.6% |
| Holdings as of (SEC N-PORT) | Jun 30, 2026 |
| Already in the S&P 500, by weight (ETFIQ) | 91.4% |
| Active share vs the S&P 500 (ETFIQ) | 83.6% |
| Already in the Nasdaq-100, by weight (ETFIQ) | 18.2% |
Questions people ask
- How has VO performed?
- Over the year to Sep 11, 2026, VO returned +12.0% with distributions reinvested, against +17.5% for the S&P 500. Over three years the figure is +56.6%.
- What does VO cost?
- The prospectus expense ratio is 0.03% a year.
- What does VO hold?
- 282 positions as filed for Jun 30, 2026, with the top ten at 9.6% of the fund. 91% of its weight is in stocks the S&P 500 also holds.
- How far is VO below its high?
- 4.1% below its high of Aug 14, 2026, measured on the reinvested series to Sep 11, 2026.
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.
Funds near this one
Cite this page. ETFIQ, VO, core index fund, data as of Sep 11, 2026. https://etfiq.com/funds/VO Free to use with attribution; the underlying files are at Open data.
ETFIQ covers leveraged and inverse, thematic, buffer, option-income, core index and spot crypto ETFs. This fund is here because the other funds here are measured against it and portfolios hold it. ETFIQ is an independent publisher and makes no recommendations. Standards and sources