VB vs VIOG: Holdings Overlap
VBVanguard Small-cap Index Fund
Vanguard · 1312 holdings · $82.5B · as of 2026-03-31
VIOGVanguard S&P Small-cap 600 Growth Index Fund
Vanguard · 342 holdings · $1.1B · as of 2026-05-31
Holdings snapshots are 61 days apart (VB: 2026-03-31, VIOG: 2026-05-31). 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 VB and VIOG?
Vanguard Small-cap Index Fund (VB, by Vanguard) holds 1312 positions; Vanguard S&P Small-cap 600 Growth Index Fund (VIOG, by Vanguard) holds 342. They have 267 holdings in common, and by portfolio weight the two funds are 11.5% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 11.5%Sum of the smaller weight of each shared holding
- Shared Holdings
- 267VB holds 1312 · VIOG holds 342
- Weight in Shared Holdings
- VB 12%·VIOG 86%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 VB
1045 of 1312 positions (88.2% of the fund) are not held by VIOG. Showing the top 30 by weight.
Only in VIOG
75 of 342 positions (13.6% of the fund) are not held by VB. Showing the top 30 by weight.
Sector Breakdown
| Sector | VB | VIOG |
|---|---|---|
| Industrials | 21.2% | 21.8% |
| Information Technology | 13.8% | 18.4% |
| Health Care | 11.6% | 14.7% |
| Financials | 13.4% | 14.2% |
| Consumer Discretionary | 10.5% | 10.8% |
| Other Sectors | 28.5% | 19.9% |
| Unclassified | 0.7% | 0.0% |
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. “Unclassified” is weight we could not classify (1% of VB, 0% of VIOG).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VB | +2.5% | +19.5% | +29.1% | +15.9% | +8.1% | +11.3% | 1.18% |
| VIOG | +1.1% | +25.9% | +33.8% | +15.2% | +6.8% | +11.2% | 0.75% |
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 VB vs VIOG →
Shared Holdings(267)
The top 10 shared positions account for 9% of the overlap, led by ESI, VIAV and FORM.
 ESIElement Solutions Inc COM | 0.12% | 0.57% | 0.12% |
|---|---|---|---|
 VIAVViavi Solutions Inc COM | 0.11% | 1.33% | 0.11% |
 FORMFormfactor Inc COM | 0.11% | 1.14% | 0.11% |
 PRIMPrimoris Services Corp. COM | 0.10% | 0.80% | 0.10% |
 ESEESCO Technologies Inc. COM | 0.10% | 0.89% | 0.10% |
 SMTCSemtech Corporation COM | 0.10% | 1.17% | 0.10% |
 ZWSZurn Elkay Water Solutions Corporation COM | 0.10% | 0.83% | 0.10% |
 AWIArmstrong World Industries, Inc. COM | 0.10% | 0.81% | 0.10% |
 KRYSKrystal Biotech Inc COM | 0.10% | 0.94% | 0.10% |
 SANMSanmina Corporation | 0.09% | 1.68% | 0.09% |
 PTGXProtagonist Therapeutics Inc COM | 0.09% | 0.69% | 0.09% |
 JBTMJBT Marel Corp. COM | 0.09% | 0.83% | 0.09% |
 FSSFederal Signal Corp. COM | 0.09% | 0.77% | 0.09% |
 QRVOQorvo Inc COM | 0.09% | 0.65% | 0.09% |
 LUMNLumen Technologies Inc COM | 0.09% | 0.55% | 0.09% |
 TRNOTerreno Realty Corporation COM | 0.09% | 0.57% | 0.09% |
 EPRTEssential Properties Realty Trust Inc. COM | 0.09% | 0.51% | 0.09% |
 NENoble Corporation PLC ORD SHS A | 0.09% | 0.37% | 0.09% |
 EATBrinker International, Inc. COM | 0.09% | 0.73% | 0.09% |
 BTSGBrightSpring Health Services Inc. COM | 0.09% | 0.97% | 0.09% |
 IBPInstalled Building Products Inc COM | 0.09% | 0.56% | 0.09% |
 ECGEverus Construction Group Inc. COM | 0.08% | 0.90% | 0.08% |
 GKOSGlaukos Corp. COM | 0.08% | 0.48% | 0.08% |
 VSATViaSat, Inc. COM | 0.08% | 1.30% | 0.08% |
 ALKSAlkermes PLC COM USD0.01 | 0.08% | 0.82% | 0.08% |
Showing the top 250 of 267 shared holdings by overlap weight.
Frequently Asked Questions
How much do VB and VIOG overlap?
VB and VIOG overlap by 11.5% of portfolio weight. They share 267 holdings (VB holds 1312 positions and VIOG holds 342), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VB and VIOG?
The two portfolios are 11.5% 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 VB and VIOG?
The largest positions held by both funds are ESI, VIAV, FORM, PRIM and ESE. Together the top 10 shared positions account for 9% of the total overlap.
What does VB own that VIOG doesn't?
1045 positions (88.2% of VB) are unique to VB, led by EME, NRG and ATO. In the other direction, 75 positions (13.6% of VIOG) are unique to VIOG.