VIOG vs VIOO: Holdings Overlap
VIOGVanguard S&P Small-cap 600 Growth Index Fund
Vanguard · 342 holdings · $1.1B · 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 VIOG and VIOO?
Vanguard S&P Small-cap 600 Growth Index Fund (VIOG, by Vanguard) holds 342 positions; Vanguard S&P Small-cap 600 Index Fund (VIOO, by Vanguard) holds 603. They have 342 holdings in common, and by portfolio weight the two funds are 63.6% identical. In practical terms the pair is heavily overlapping, with largely the same stocks driving both funds.
- Overlap by Weight
- 63.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 342VIOG holds 342 · VIOO holds 603
- Weight in Shared Holdings
- VIOG 100%·VIOO 65%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 VIOG
Every position in VIOG is also held by VIOO, so it brings nothing the other fund doesn’t already own.
Sector Breakdown
| Sector | VIOG | VIOO |
|---|---|---|
| Industrials | 21.8% | 17.2% |
| Information Technology | 18.4% | 15.9% |
| Financials | 14.2% | 17.6% |
| Health Care | 14.7% | 11.0% |
| Consumer Discretionary | 10.8% | 12.9% |
| Other Sectors | 19.9% | 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 |
|---|---|---|---|---|---|---|---|
| VIOG | +1.1% | +25.9% | +33.8% | +15.2% | +6.8% | +11.2% | 0.75% |
| 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 VIOG vs VIOO →
Shared Holdings(342)
The top 10 shared positions account for 10% of the overlap, led by SANM, SMTC and VIAV.
 SANMSanmina Corporation | 1.68% | 0.83% | 0.83% |
|---|---|---|---|
 SMTCSemtech Corporation COM | 1.17% | 0.83% | 0.83% |
 VIAVViavi Solutions Inc COM | 1.33% | 0.66% | 0.66% |
 VSATViaSat, Inc. COM | 1.30% | 0.64% | 0.64% |
 FORMFormfactor Inc COM | 1.14% | 0.57% | 0.57% |
 ESIElement Solutions Inc COM | 0.57% | 0.57% | 0.57% |
 LUMNLumen Technologies Inc COM | 0.55% | 0.61% | 0.55% |
 AGXArgan Inc COM | 1.10% | 0.54% | 0.54% |
 QRVOQorvo Inc COM | 0.65% | 0.51% | 0.51% |
 BTSGBrightSpring Health Services Inc. COM | 0.97% | 0.48% | 0.48% |
 POWLPowell Industries Inc. COM | 0.96% | 0.47% | 0.47% |
 KRYSKrystal Biotech Inc COM | 0.94% | 0.47% | 0.47% |
 SNEXStoneX Group Inc COM | 0.94% | 0.47% | 0.47% |
 ECGEverus Construction Group Inc. COM | 0.90% | 0.45% | 0.45% |
 ESEESCO Technologies Inc. COM | 0.89% | 0.44% | 0.44% |
 RHPRyman Hospitality Properties Inc COM | 0.86% | 0.43% | 0.43% |
 MYRGMYR Group, Inc. | 0.85% | 0.42% | 0.42% |
 JBTMJBT Marel Corp. COM | 0.83% | 0.41% | 0.41% |
 RALRalliant Corp. COM | 0.43% | 0.41% | 0.41% |
 ZWSZurn Elkay Water Solutions Corporation COM | 0.83% | 0.41% | 0.41% |
 TRNOTerreno Realty Corporation COM | 0.57% | 0.40% | 0.40% |
 AWIArmstrong World Industries, Inc. COM | 0.81% | 0.40% | 0.40% |
 PRIMPrimoris Services Corp. COM | 0.80% | 0.40% | 0.40% |
 MSGSMadison Square Garden Sports Corp. CL A | 0.80% | 0.40% | 0.40% |
 ETSYEtsy Inc COM | 0.79% | 0.39% | 0.39% |
Showing the top 250 of 342 shared holdings by overlap weight.
Frequently Asked Questions
How much do VIOG and VIOO overlap?
VIOG and VIOO overlap by 63.6% of portfolio weight. They share 342 holdings (VIOG holds 342 positions and VIOO holds 603), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VIOG and VIOO?
The two portfolios are 63.6% 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 VIOG and VIOO?
The largest positions held by both funds are SANM, SMTC, VIAV, VSAT and FORM. Together the top 10 shared positions account for 10% of the total overlap.
What does VIOG own that VIOO doesn't?
Nothing. Every position in VIOG is also held by VIOO. In the other direction, 261 positions (35.2% of VIOO) are unique to VIOO.