VBK vs VOO: Holdings Overlap
VBKVanguard Small-cap Growth Index Fund
Vanguard · 551 holdings · $24.3B · as of 2026-03-31
Vanguard · 504 holdings · $1.03T · as of 2026-03-31
How similar are VBK and VOO?
Vanguard Small-cap Growth Index Fund (VBK, by Vanguard) holds 551 positions; Vanguard 500 Index Fund (VOO, by Vanguard) holds 504. They have 35 holdings in common, and by portfolio weight the two funds are 1.2% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 1.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 35VBK holds 551 · VOO holds 504
- Weight in Shared Holdings
- VBK 14%·VOO 1%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 VBK
516 of 551 positions (86.0% of the fund) are not held by VOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | VBK | VOO |
|---|---|---|
| Information Technology | 21.6% | 32.7% |
| Industrials | 24.6% | 9.0% |
| Health Care | 16.1% | 9.5% |
| Financials | 6.1% | 12.4% |
| Communication Services | 4.2% | 10.5% |
| Other Sectors | 26.2% | 25.7% |
| Unclassified | 0.9% | 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 VBK, 0% of VOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VBK | +1.8% | +19.6% | +29.4% | +16.6% | +5.3% | +11.4% | 0.42% |
| VOO | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.03% |
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 VBK vs VOO →
Shared Holdings(35)
The top 10 shared positions account for 55% of the overlap, led by CIEN, LITE and FIX.
 CIENCiena Corporation COM NEW | 0.92% | 0.10% | 0.10% |
|---|---|---|---|
 LITELumentum Holdings Inc. COM | 0.84% | 0.09% | 0.09% |
 FIXComfort Systems USA Inc. COM | 0.81% | 0.09% | 0.09% |
 COHRCoherent Corp COM | 0.74% | 0.08% | 0.08% |
 EQTEQT Corporation COM | 0.66% | 0.07% | 0.07% |
 EMEEmcor Group Inc COM | 0.55% | 0.06% | 0.06% |
 TPLTexas Pacific Land Corporation COM | 0.46% | 0.05% | 0.05% |
 HUBBHubbell Incorporated COM | 0.22% | 0.05% | 0.05% |
 EXEExpand Energy Corp. COM | 0.44% | 0.05% | 0.05% |
 ALBAlbemarle Corp COM | 0.35% | 0.04% | 0.04% |
 FSLRFirst Solar Inc COM | 0.34% | 0.04% | 0.04% |
 PTCPTC Inc COM | 0.57% | 0.03% | 0.03% |
 ECHOEchoStar Corp., Class A | 0.26% | 0.03% | 0.03% |
 INCYIncyte Corporation. COM | 0.53% | 0.03% | 0.03% |
 LIILennox International Inc. COM | 0.48% | 0.03% | 0.03% |
 PODDInsulet Corporation COM | 0.25% | 0.03% | 0.03% |
 TYLTyler Technologies Inc. COM | 0.25% | 0.03% | 0.03% |
 DECKDeckers Outdoor Corp. COM | 0.47% | 0.03% | 0.03% |
 NDSNNordson Corp COM | 0.47% | 0.03% | 0.03% |
 TKOTKO Group Holdings, Inc., Class A | 0.21% | 0.02% | 0.02% |
 RLRalph Lauren Corp., Class A | 0.21% | 0.02% | 0.02% |
 HSTHost Hotels & Resorts Inc COM | 0.22% | 0.02% | 0.02% |
 GNRCGenerac Holdings Inc. COM | 0.38% | 0.02% | 0.02% |
 JKHYHenry Jack & Associates Inc. COM | 0.38% | 0.02% | 0.02% |
 GDDYGoDaddy, Inc., Class A | 0.18% | 0.02% | 0.02% |
Frequently Asked Questions
How much do VBK and VOO overlap?
VBK and VOO overlap by 1.2% of portfolio weight. They share 35 holdings (VBK holds 551 positions and VOO holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VBK and VOO?
The two portfolios are 1.2% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of VBK and VOO?
The largest positions held by both funds are CIEN, LITE, FIX, COHR and EQT. Together the top 10 shared positions account for 55% of the total overlap.
What does VBK own that VOO doesn't?
516 positions (86.0% of VBK) are unique to VBK, led by FTI, CASY and NTRA. In the other direction, 469 positions (98.6% of VOO) are unique to VOO.