VIOO vs VIOV: Holdings Overlap
VIOOVanguard S&P Small-cap 600 Index Fund
Vanguard · 603 holdings · $4.4B · as of 2026-05-31
VIOVVanguard S&P Small-cap 600 Value Index Fund
Vanguard · 460 holdings · $1.9B · as of 2026-05-31
How similar are VIOO and VIOV?
Vanguard S&P Small-cap 600 Index Fund (VIOO, by Vanguard) holds 603 positions; Vanguard S&P Small-cap 600 Value Index Fund (VIOV, by Vanguard) holds 460. 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
- 460VIOO holds 603 · VIOV holds 460
- Weight in Shared Holdings
- VIOO 69%·VIOV 100%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 VIOO
143 of 603 positions (30.6% of the fund) are not held by VIOV. Showing the top 30 by weight.
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 | VIOO | VIOV |
|---|---|---|
| Financials | 17.6% | 21.0% |
| Industrials | 17.2% | 12.6% |
| Information Technology | 15.9% | 13.3% |
| Consumer Discretionary | 12.9% | 14.9% |
| Health Care | 11.0% | 7.4% |
| Other Sectors | 25.2% | 30.3% |
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 |
|---|---|---|---|---|---|---|---|
| VIOO | +2.4% | +24.4% | +36.3% | +14.6% | +7.7% | +10.9% | 1.09% |
| VIOV | +3.7% | +23.2% | +39.7% | +13.8% | +8.4% | +10.4% | 1.64% |
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 VIOO vs VIOV →
Shared Holdings(460)
The top 10 shared positions account for 8% of the overlap, led by LUMN, ESI and ENPH.
 LUMNLumen Technologies Inc COM | 0.61% | 0.66% | 0.61% |
|---|---|---|---|
 ESIElement Solutions Inc COM | 0.57% | 0.56% | 0.56% |
 ENPHEnphase Energy Inc COM | 0.53% | 1.04% | 0.53% |
 MOHMolina Healthcare, Inc. COM | 0.53% | 1.04% | 0.53% |
 EMNEastman Chemical Company COM | 0.51% | 1.01% | 0.51% |
 MTCHMatch Group Inc COM | 0.50% | 0.99% | 0.50% |
 SMTCSemtech Corporation COM | 0.83% | 0.49% | 0.49% |
 MXLMaxlinear Inc COM | 0.44% | 0.50% | 0.44% |
 JXNJackson Financial, Inc., Class A | 0.43% | 0.85% | 0.43% |
 PLXSPlexus Corp COM | 0.42% | 0.47% | 0.42% |
 SMSM Energy Co. COM | 0.41% | 0.81% | 0.41% |
 LKQLKQ Corporation COM | 0.41% | 0.81% | 0.41% |
 PAYCPaycom Software Inc COM | 0.40% | 0.80% | 0.40% |
 RALRalliant Corp. COM | 0.41% | 0.39% | 0.39% |
 VSHVishay Intertechnology, Inc. COM | 0.38% | 0.75% | 0.38% |
 QRVOQorvo Inc COM | 0.51% | 0.38% | 0.38% |
 KMXCarmax Inc COM | 0.37% | 0.74% | 0.37% |
 VSNTVersant Media Group Inc. COM CL A | 0.37% | 0.73% | 0.37% |
| Gates Industrial Corp PLC COM USD0.01 | 0.39% | 0.35% | 0.35% |
 LWLamb Weston Holdings Inc COM | 0.35% | 0.70% | 0.35% |
 LNCLincoln National Corp. COM | 0.35% | 0.70% | 0.35% |
 CZRCaesars Entertainment Inc. COM | 0.35% | 0.69% | 0.35% |
 MACThe Macerich Company COM | 0.36% | 0.35% | 0.35% |
 CECelanese Corporation COM | 0.34% | 0.48% | 0.34% |
 TFXTeleflex Incorporated COM | 0.33% | 0.66% | 0.33% |
Showing the top 250 of 460 shared holdings by overlap weight.
Frequently Asked Questions
How much do VIOO and VIOV overlap?
VIOO and VIOV overlap by 64.3% of portfolio weight. They share 460 holdings (VIOO holds 603 positions and VIOV holds 460), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VIOO and VIOV?
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 VIOO and VIOV?
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 VIOO own that VIOV doesn't?
143 positions (30.6% of VIOO) are unique to VIOO, led by SANM, VIAV and VSAT. In the other direction, 0 positions (0.0% of VIOV) are unique to VIOV.