VBK vs VXF: Holdings Overlap
VBKVanguard Small-cap Growth Index Fund
Vanguard · 551 holdings · $24.3B · as of 2026-03-31
VXFVanguard Extended Market Index Fund
Vanguard · 3359 holdings · $32.2B · as of 2026-03-31
How similar are VBK and VXF?
Vanguard Small-cap Growth Index Fund (VBK, by Vanguard) holds 551 positions; Vanguard Extended Market Index Fund (VXF, by Vanguard) holds 3359. They have 508 holdings in common, and by portfolio weight the two funds are 38.4% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 38.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 508VBK holds 551 · VXF holds 3359
- Weight in Shared Holdings
- VBK 86%·VXF 38%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
43 of 551 positions (14.1% of the fund) are not held by VXF. Showing the top 30 by weight.
Only in VXF
2851 of 3359 positions (61.3% of the fund) are not held by VBK. Showing the top 30 by weight.
Sector Breakdown
| Sector | VBK | VXF |
|---|---|---|
| Industrials | 24.6% | 19.5% |
| Information Technology | 21.6% | 16.3% |
| Health Care | 16.1% | 13.3% |
| Financials | 6.1% | 15.0% |
| Consumer Discretionary | 9.9% | 9.8% |
| Other Sectors | 20.6% | 23.6% |
| Unclassified | 0.9% | 2.4% |
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, 2% of VXF).
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% |
| VXF | +2.4% | +18.9% | +26.9% | +18.6% | +6.9% | +12.0% | 0.99% |
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 VXF →
Shared Holdings(508)
The top 10 shared positions account for 10% of the overlap, led by BE, INSM and RKLB.
 BEBloom Energy Corporation COM CL A | 0.60% | 0.48% | 0.48% |
|---|---|---|---|
 INSMInsmed Inc COM PAR $.01 | 0.59% | 0.48% | 0.48% |
 RKLBRocket Lab Corp. COM | 0.61% | 0.41% | 0.41% |
 FTITechnipFMC PLC USD1 | 0.92% | 0.38% | 0.38% |
 NTRANatera Inc. COM | 0.88% | 0.38% | 0.38% |
 CASYCasey'S General Stores Inc. COM | 0.90% | 0.37% | 0.37% |
 FTAIFTAI Aviation Ltd COM USD0.01 | 0.84% | 0.34% | 0.34% |
 CWCurtiss-Wright Corporation | 0.84% | 0.34% | 0.34% |
 XPOXPO Inc COM | 0.36% | 0.31% | 0.31% |
 WWDWoodward Inc. COM | 0.71% | 0.29% | 0.29% |
 ASTSAST SpaceMobile, Inc., Class A | 0.72% | 0.28% | 0.28% |
 RGLDRoyal Gold, Inc. COM | 0.72% | 0.28% | 0.28% |
 BURLBurlington Stores Inc. COM | 0.34% | 0.28% | 0.28% |
 SOFISofi Technologies Inc COM | 0.68% | 0.28% | 0.28% |
 ATIATI Inc COM | 0.66% | 0.27% | 0.27% |
 MTZMastec, Inc. COM | 0.68% | 0.27% | 0.27% |
 CRSCarpenter Technology Corporation COM | 0.62% | 0.27% | 0.27% |
 CDECoeur Mining Inc COM NEW | 0.36% | 0.27% | 0.27% |
 FWONKLiberty Media Corp.-Liberty Formula One, Class C | 0.63% | 0.26% | 0.26% |
 TWLOTwilio, Inc., Class A | 0.64% | 0.26% | 0.26% |
 NVTNVent Electric PLC COM USD0.01 | 0.64% | 0.26% | 0.26% |
 BWXTBWX Technologies Inc. COM | 0.62% | 0.26% | 0.26% |
 FNFabrinet COM USD0.01 | 0.62% | 0.26% | 0.26% |
 PEverpure, Inc., Class A | 0.62% | 0.25% | 0.25% |
 NXTNextpower Inc. CLASS A COM | 0.57% | 0.25% | 0.25% |
Showing the top 250 of 508 shared holdings by overlap weight.
Frequently Asked Questions
How much do VBK and VXF overlap?
VBK and VXF overlap by 38.4% of portfolio weight. They share 508 holdings (VBK holds 551 positions and VXF holds 3359), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VBK and VXF?
The two portfolios are 38.4% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of VBK and VXF?
The largest positions held by both funds are BE, INSM, RKLB, FTI and NTRA. Together the top 10 shared positions account for 10% of the total overlap.
What does VBK own that VXF doesn't?
43 positions (14.1% of VBK) are unique to VBK, led by CIEN, LITE and FIX. In the other direction, 2851 positions (61.3% of VXF) are unique to VXF.