VIOO vs XSD: Holdings Overlap
VIOOVanguard S&P Small-cap 600 Index Fund
Vanguard · 603 holdings · $4.4B · as of 2026-05-31
XSDState Street® SPDR® S&P® Semiconductor ETF
State Street (SPDR) · 46 holdings · $2.9B · as of 2026-08-06
Holdings snapshots are 67 days apart (VIOO: 2026-05-31, XSD: 2026-08-06). 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 VIOO and XSD?
Vanguard S&P Small-cap 600 Index Fund (VIOO, by Vanguard) holds 603 positions; State Street® SPDR® S&P® Semiconductor ETF (XSD, by State Street (SPDR)) holds 46. They have 8 holdings in common, and by portfolio weight the two funds are 2.8% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 8VIOO holds 603 · XSD holds 46
- Weight in Shared Holdings
- VIOO 3%·XSD 20%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 VIOO
595 of 603 positions (97.0% of the fund) are not held by XSD. Showing the top 30 by weight.
Sector Breakdown
| Sector | VIOO | XSD |
|---|---|---|
| Information Technology | 15.9% | 95.2% |
| Financials | 17.6% | 0.0% |
| Industrials | 17.2% | 1.8% |
| Consumer Discretionary | 12.9% | 0.0% |
| Health Care | 11.0% | 0.0% |
| Other Sectors | 25.2% | 0.0% |
| Unclassified | 0.0% | 2.9% |
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 (0% of VIOO, 3% of XSD).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| VIOO | +2.4% | +24.4% | +36.3% | +14.6% | +7.7% | +10.9% | 1.09% |
| XSD | +1.8% | +69.5% | +104.0% | +35.6% | +22.7% | +27.6% | 0.14% |
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 VIOO vs XSD →
Shared Holdings(8)
The top 8 shared positions account for 100% of the overlap, led by SMTC, QRVO and MXL.
 SMTCSemtech Corporation COM | 0.83% | 2.24% | 0.83% |
|---|---|---|---|
 QRVOQorvo Inc COM | 0.51% | 2.58% | 0.51% |
 MXLMaxlinear Inc COM | 0.44% | 2.50% | 0.44% |
 DIODDiodes Incorporated COM | 0.28% | 2.52% | 0.28% |
 POWIPower Integrations Inc. COM | 0.27% | 2.03% | 0.27% |
 PIImpinj Inc COM | 0.24% | 3.60% | 0.24% |
 PENGPenguin Solutions Inc COM | 0.16% | 2.47% | 0.16% |
 AOSLAlpha & Omega Semiconductor Ltd. COM USD0.002 | 0.07% | 1.61% | 0.07% |
Frequently Asked Questions
How much do VIOO and XSD overlap?
VIOO and XSD overlap by 2.8% of portfolio weight. They share 8 holdings (VIOO holds 603 positions and XSD holds 46), based on each fund's latest SEC-reported holdings.
Is it redundant to own both VIOO and XSD?
The two portfolios are 2.8% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of VIOO and XSD?
The largest positions held by both funds are SMTC, QRVO, MXL, DIOD and POWI. Together the top 8 shared positions account for 100% of the total overlap.
What does VIOO own that XSD doesn't?
595 positions (97.0% of VIOO) are unique to VIOO, led by SANM, VIAV and VSAT. In the other direction, 38 positions (80.4% of XSD) are unique to XSD.