IVOO vs VTI: Holdings Overlap
IVOOVanguard S&P Mid-cap 400 Index Fund
Vanguard · 400 holdings · $3.9B · as of 2026-05-31
VTIVanguard Total Stock Market Index Fund
Vanguard · 3505 holdings · $696.4B · as of 2026-03-31
Holdings snapshots are 61 days apart (IVOO: 2026-05-31, VTI: 2026-03-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IVOO and VTI?
Vanguard S&P Mid-cap 400 Index Fund (IVOO, by Vanguard) holds 400 positions; Vanguard Total Stock Market Index Fund (VTI, by Vanguard) holds 3505. They have 397 holdings in common, and by portfolio weight the two funds are 5.0% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 5.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 397IVOO holds 400 · VTI holds 3505
- Weight in Shared Holdings
- IVOO 99%·VTI 5%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 IVOO
3 of 400 positions (0.6% of the fund) are not held by VTI.
Sector Breakdown
| Sector | IVOO | VTI |
|---|---|---|
| Information Technology | 15.7% | 30.5% |
| Industrials | 25.6% | 10.4% |
| Financials | 14.3% | 12.7% |
| Consumer Discretionary | 11.1% | 9.8% |
| Health Care | 8.7% | 10.0% |
| Other Sectors | 24.4% | 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 |
|---|---|---|---|---|---|---|---|
| IVOO | +3.1% | +18.5% | +26.0% | +14.6% | +9.0% | +11.2% | 1.14% |
| 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 IVOO vs VTI →
Shared Holdings(397)
The top 10 shared positions account for 7% of the overlap, led by FTI, UTHR and CW.
 FTITechnipFMC PLC USD1 | 0.79% | 0.04% | 0.04% |
|---|---|---|---|
 UTHRUnited Therapeutics Corporation COM | 0.68% | 0.04% | 0.04% |
 CWCurtiss-Wright Corporation | 0.79% | 0.04% | 0.04% |
 FLEXFlex Ltd. COM USD0.01 | 1.58% | 0.04% | 0.04% |
 RGLDRoyal Gold, Inc. COM | 0.52% | 0.03% | 0.03% |
 XPOXPO Inc COM | 0.72% | 0.03% | 0.03% |
 WWDWoodward Inc. COM | 0.59% | 0.03% | 0.03% |
 BURLBurlington Stores Inc. COM | 0.57% | 0.03% | 0.03% |
 USFDUS Foods Holding Corp COM | 0.51% | 0.03% | 0.03% |
 MTZMastec, Inc. COM | 0.66% | 0.03% | 0.03% |
 ATIATI Inc COM | 0.68% | 0.03% | 0.03% |
 NVTNVent Electric PLC COM USD0.01 | 0.77% | 0.03% | 0.03% |
 TWLOTwilio, Inc., Class A | 0.82% | 0.03% | 0.03% |
 FNFabrinet COM USD0.01 | 0.67% | 0.03% | 0.03% |
 CRSCarpenter Technology Corporation COM | 0.67% | 0.03% | 0.03% |
 BWXTBWX Technologies Inc. COM | 0.51% | 0.03% | 0.03% |
 PEverpure, Inc., Class A | 0.71% | 0.03% | 0.03% |
 ILMNIllumina Inc COM | 0.71% | 0.03% | 0.03% |
 RBARB Global Inc COM | 0.56% | 0.03% | 0.03% |
 ENTGEntegris Inc COM | 0.60% | 0.03% | 0.03% |
 AAAlcoa Corporation COM | 0.57% | 0.03% | 0.03% |
 RBCRBC Bearings Incorporated | 0.52% | 0.03% | 0.03% |
 NXTNextpower Inc. CLASS A COM | 0.66% | 0.03% | 0.03% |
 OVVOvintiv Inc COM | 0.44% | 0.03% | 0.03% |
 PRPermian Resources Corporation Class A | 0.41% | 0.03% | 0.03% |
Showing the top 250 of 397 shared holdings by overlap weight.
Frequently Asked Questions
How much do IVOO and VTI overlap?
IVOO and VTI overlap by 5.0% of portfolio weight. They share 397 holdings (IVOO holds 400 positions and VTI holds 3505), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVOO and VTI?
The two portfolios are 5.0% 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 IVOO and VTI?
The largest positions held by both funds are FTI, UTHR, CW, FLEX and RGLD. Together the top 10 shared positions account for 7% of the total overlap.
What does IVOO own that VTI doesn't?
3 positions (0.6% of IVOO) are unique to IVOO, led by ALV, SN and LIVN. In the other direction, 3108 positions (94.6% of VTI) are unique to VTI.