VIOV vs VIOO: Holdings Overlap
VIOVVanguard S&P Small-cap 600 Value Index Fund
Vanguard · 460 holdings · $1.9B · as of 2026-05-31
VIOOVanguard S&P Small-cap 600 Index Fund
Vanguard · 603 holdings · $4.4B · as of 2026-05-31
How similar are VIOV and VIOO?
Vanguard S&P Small-cap 600 Value Index Fund (VIOV, by Vanguard) holds 460 positions; Vanguard S&P Small-cap 600 Index Fund (VIOO, by Vanguard) holds 603. They have 460 holdings in common, and by portfolio weight the two funds are 64.3% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 64.3%Sum of the smaller weight of each shared holding
- Shared Holdings
- 460VIOV holds 460 · VIOO holds 603
- Weight in Shared Holdings
- VIOV 100%·VIOO 69%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 VIOV
Every position in VIOV is also held by VIOO, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | VIOV | VIOO |
|---|---|---|
| Financials | 21.0% | 17.6% |
| Industrials | 12.6% | 17.2% |
| Information Technology | 13.3% | 15.9% |
| Consumer Discretionary | 14.9% | 12.9% |
| Health Care | 7.4% | 11.0% |
| Other Sectors | 30.3% | 25.2% |
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 |
|---|---|---|---|---|---|---|---|
| VIOV | +3.7% | +23.2% | +39.7% | +13.8% | +8.4% | +10.4% | 1.64% |
| VIOO | +2.4% | +24.4% | +36.3% | +14.6% | +7.7% | +10.9% | 1.09% |
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 VIOV vs VIOO →
Shared Holdings(460)
The top 10 shared positions account for 8% of the overlap, led by LUMN, ESI and ENPH.
 LUMNLumen Technologies Inc COM | 0.66% | 0.61% | 0.61% |
|---|---|---|---|
 ESIElement Solutions Inc COM | 0.56% | 0.57% | 0.56% |
 ENPHEnphase Energy Inc COM | 1.04% | 0.53% | 0.53% |
 MOHMolina Healthcare, Inc. COM | 1.04% | 0.53% | 0.53% |
 EMNEastman Chemical Company COM | 1.01% | 0.51% | 0.51% |
 MTCHMatch Group Inc COM | 0.99% | 0.50% | 0.50% |
 SMTCSemtech Corporation COM | 0.49% | 0.83% | 0.49% |
 MXLMaxlinear Inc COM | 0.50% | 0.44% | 0.44% |
 JXNJackson Financial, Inc., Class A | 0.85% | 0.43% | 0.43% |
 PLXSPlexus Corp COM | 0.47% | 0.42% | 0.42% |
 SMSM Energy Co. COM | 0.81% | 0.41% | 0.41% |
 LKQLKQ Corporation COM | 0.81% | 0.41% | 0.41% |
 PAYCPaycom Software Inc COM | 0.80% | 0.40% | 0.40% |
 RALRalliant Corp. COM | 0.39% | 0.41% | 0.39% |
 VSHVishay Intertechnology, Inc. COM | 0.75% | 0.38% | 0.38% |
 QRVOQorvo Inc COM | 0.38% | 0.51% | 0.38% |
 KMXCarmax Inc COM | 0.74% | 0.37% | 0.37% |
 VSNTVersant Media Group Inc. COM CL A | 0.73% | 0.37% | 0.37% |
| Gates Industrial Corp PLC COM USD0.01 | 0.35% | 0.39% | 0.35% |
 LWLamb Weston Holdings Inc COM | 0.70% | 0.35% | 0.35% |
 LNCLincoln National Corp. COM | 0.70% | 0.35% | 0.35% |
 CZRCaesars Entertainment Inc. COM | 0.69% | 0.35% | 0.35% |
 MACThe Macerich Company COM | 0.35% | 0.36% | 0.35% |
 CECelanese Corporation COM | 0.48% | 0.34% | 0.34% |
 TFXTeleflex Incorporated COM | 0.66% | 0.33% | 0.33% |
Showing the top 250 of 460 shared holdings by overlap weight.
Frequently Asked Questions
How much do VIOV and VIOO overlap?
VIOV and VIOO overlap by 64.3% of portfolio weight. They share 460 holdings (VIOV holds 460 positions and VIOO holds 603), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VIOV and VIOO?
The two portfolios are 64.3% identical by weight. Owning both mostly doubles down on the shared core rather than diversifying: the same large positions drive both funds.
What are the biggest shared holdings of VIOV and VIOO?
The largest positions held by both funds are LUMN, ESI, ENPH, MOH and EMN. Together the top 10 shared positions account for 8% of the total overlap.
What does VIOV own that VIOO doesn't?
Nothing. Every position in VIOV is also held by VIOO. In the other direction, 143 positions (30.6% of VIOO) are unique to VIOO.