VO vs VTI: Holdings Overlap
Vanguard · 289 holdings · $109.2B · as of 2026-03-31
VTIVanguard Total Stock Market Index Fund
Vanguard · 3505 holdings · $696.4B · as of 2026-03-31
How similar are VO and VTI?
Vanguard Mid-cap Index Fund (VO, by Vanguard) holds 289 positions; Vanguard Total Stock Market Index Fund (VTI, by Vanguard) holds 3505. They have 289 holdings in common, and by portfolio weight the two funds are 16.2% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 16.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 289VO holds 289 · VTI holds 3505
- Weight in Shared Holdings
- VO 100%·VTI 16%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in VO
Every position in VO is also held by VTI, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | VO | VTI |
|---|---|---|
| Information Technology | 14.2% | 30.5% |
| Industrials | 18.4% | 10.4% |
| Financials | 13.8% | 12.7% |
| Health Care | 8.3% | 10.0% |
| Consumer Discretionary | 9.3% | 9.8% |
| Other Sectors | 35.7% | 26.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VO | +2.6% | +14.8% | +18.0% | +15.7% | +8.0% | +11.6% | 1.29% |
| VTI | +3.3% | +14.6% | +24.2% | +20.9% | +12.3% | +14.9% | 1.02% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in VO vs VTI →
Shared Holdings(289)
The top 10 shared positions account for 9% of the overlap, led by NEM, GLW and VRT.
 NEMNewmont Corporation COM | 0.64% | 0.19% | 0.19% |
|---|---|---|---|
 GLWCorning Incorporated COM | 0.57% | 0.17% | 0.17% |
 VRTVertiv Holdings Co., Class A | 1.03% | 0.15% | 0.15% |
 HWMHowmet Aerospace Inc COM | 1.01% | 0.15% | 0.15% |
 WDCWestern Digital Corp. COM | 1.00% | 0.15% | 0.15% |
 WMBWilliams Companies Inc. (The) COM | 0.48% | 0.14% | 0.14% |
 MRVLMarvell Technology Inc COM | 0.47% | 0.14% | 0.14% |
 CEGConstellation Energy Corp. COM | 0.94% | 0.14% | 0.14% |
 STXSeagate Technology Holdings PLC ORD SHS | 0.93% | 0.14% | 0.14% |
 PWRQuanta Services, Inc. COM | 0.89% | 0.13% | 0.13% |
 JCIJohnson Controls International PLC COM USD1.00 | 0.44% | 0.13% | 0.13% |
 SLBSLB Ltd. COM USD0.01 | 0.84% | 0.12% | 0.12% |
 FDXFedEx Corporation COM | 0.41% | 0.12% | 0.12% |
 CMICummins Inc. COM | 0.81% | 0.12% | 0.12% |
 VLOValero Energy Corp. COM | 0.80% | 0.12% | 0.12% |
 PSXPhillips 66 COM | 0.80% | 0.12% | 0.12% |
 MPCMarathon Petroleum Corp. COM | 0.78% | 0.11% | 0.11% |
 MSIMotorola Solutions Inc COM NEW | 0.78% | 0.11% | 0.11% |
 CRHCRH plc | 0.77% | 0.11% | 0.11% |
 ROSTRoss Stores Inc COM | 0.76% | 0.11% | 0.11% |
 HLTHilton Worldwide Holdings Inc COM | 0.38% | 0.11% | 0.11% |
 GMGeneral Motors Company COM | 0.73% | 0.11% | 0.11% |
 RCLRoyal Caribbean Group COM USD0.01 | 0.73% | 0.11% | 0.11% |
 TDGTransdigm Group Inc. COM | 0.71% | 0.10% | 0.10% |
 WBDWarner Bros. Discovery Inc. COM SER A | 0.70% | 0.10% | 0.10% |
Showing the top 250 of 289 shared holdings by overlap weight.
Frequently Asked Questions
How much do VO and VTI overlap?
VO and VTI overlap by 16.2% of portfolio weight. They share 289 holdings (VO holds 289 positions and VTI holds 3505), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VO and VTI?
The two portfolios are 16.2% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of VO and VTI?
The largest positions held by both funds are NEM, GLW, VRT, HWM and WDC. Together the top 10 shared positions account for 9% of the total overlap.
What does VO own that VTI doesn't?
Nothing. Every position in VO is also held by VTI. In the other direction, 3216 positions (83.4% of VTI) are unique to VTI.