VIOV vs VOX: Holdings Overlap
VIOVVanguard S&P Small-cap 600 Value Index Fund
Vanguard · 460 holdings · $1.9B · as of 2026-05-31
VOXVanguard Communication Services Index Fund
Vanguard · 114 holdings · $5.9B · as of 2026-05-31
How similar are VIOV and VOX?
Vanguard S&P Small-cap 600 Value Index Fund (VIOV, by Vanguard) holds 460 positions; Vanguard Communication Services Index Fund (VOX, by Vanguard) holds 114. They have 19 holdings in common, and by portfolio weight the two funds are 3.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 3.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 19VIOV holds 460 · VOX holds 114
- Weight in Shared Holdings
- VIOV 5%·VOX 3%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 VIOV
441 of 460 positions (95.0% of the fund) are not held by VOX. Showing the top 30 by weight.
Only in VOX
95 of 114 positions (96.5% of the fund) are not held by VIOV. Showing the top 30 by weight.
Sector Breakdown
| Sector | VIOV | VOX |
|---|---|---|
| Communication Services | 4.6% | 99.7% |
| Financials | 21.0% | 0.0% |
| Consumer Discretionary | 14.9% | 0.0% |
| Information Technology | 13.3% | 0.0% |
| Industrials | 12.6% | 0.0% |
| Other Sectors | 33.1% | 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.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VIOV | +3.7% | +23.2% | +39.7% | +13.8% | +8.4% | +10.4% | 1.64% |
| VOX | -1.3% | -2.7% | +8.9% | +20.4% | +6.4% | +8.3% | 1.05% |
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 VIOV vs VOX →
Shared Holdings(19)
The top 10 shared positions account for 88% of the overlap, led by LUMN, MTCH and VSNT.
 LUMNLumen Technologies Inc COM | 0.66% | 0.64% | 0.64% |
|---|---|---|---|
 MTCHMatch Group Inc COM | 0.99% | 0.49% | 0.49% |
 VSNTVersant Media Group Inc. COM CL A | 0.73% | 0.37% | 0.37% |
 IRDMIridium Communications, Inc. COM | 0.25% | 0.29% | 0.25% |
 TDSTelephone and Data Systems Inc. COM NEW | 0.45% | 0.24% | 0.24% |
 PPLIIAC Inc COM NEW | 0.34% | 0.18% | 0.18% |
 CARGCargurus, Inc., Class A | 0.14% | 0.15% | 0.14% |
 CNKCinemark Holdings Inc. COM | 0.13% | 0.18% | 0.13% |
 ZDZiff Davis Inc COM | 0.21% | 0.11% | 0.11% |
 WLYJohn Wiley & Sons, Inc., Class A | 0.20% | 0.10% | 0.10% |
 YELPYelp Inc CL A | 0.07% | 0.08% | 0.07% |
 DVDoubleVerify Holdings Inc COM | 0.06% | 0.08% | 0.06% |
 CCOICogent Communications Holdings, Inc. COM NEW | 0.05% | 0.05% | 0.05% |
 SHENShenandoah Telecommunications Co. COM | 0.08% | 0.04% | 0.04% |
 GTMZoominfo Technologies Inc COMMON STOCK | 0.04% | 0.05% | 0.04% |
 SCHLScholastic Corporation COM | 0.10% | 0.03% | 0.03% |
 QNSTQuinStreet Inc. COM | 0.03% | 0.04% | 0.03% |
 SSTKShutterstock Inc COM | 0.04% | 0.02% | 0.02% |
 CABOCable One Inc COM | 0.03% | 0.02% | 0.02% |
Frequently Asked Questions
How much do VIOV and VOX overlap?
VIOV and VOX overlap by 3.0% of portfolio weight. They share 19 holdings (VIOV holds 460 positions and VOX holds 114), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VIOV and VOX?
The two portfolios are 3.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of VIOV and VOX?
The largest positions held by both funds are LUMN, MTCH, VSNT, IRDM and TDS. Together the top 10 shared positions account for 88% of the total overlap.
What does VIOV own that VOX doesn't?
441 positions (95.0% of VIOV) are unique to VIOV, led by ENPH, MOH and EMN. In the other direction, 95 positions (96.5% of VOX) are unique to VOX.