IVOO vs XSD: Holdings Overlap
IVOOVanguard S&P Mid-cap 400 Index Fund
Vanguard · 400 holdings · $3.9B · 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 (IVOO: 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 IVOO and XSD?
Vanguard S&P Mid-cap 400 Index Fund (IVOO, by Vanguard) holds 400 positions; State Street® SPDR® S&P® Semiconductor ETF (XSD, by State Street (SPDR)) holds 46. They have 9 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
- 9IVOO holds 400 · XSD holds 46
- Weight in Shared Holdings
- IVOO 3%·XSD 21%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 IVOO
391 of 400 positions (96.8% of the fund) are not held by XSD. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVOO | XSD |
|---|---|---|
| Information Technology | 15.7% | 95.2% |
| Industrials | 25.6% | 1.8% |
| Financials | 14.3% | 0.0% |
| Consumer Discretionary | 11.1% | 0.0% |
| Health Care | 8.7% | 0.0% |
| Other Sectors | 24.4% | 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 IVOO, 3% of XSD).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IVOO | +3.1% | +18.5% | +26.0% | +14.6% | +9.0% | +11.2% | 1.14% |
| 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 IVOO vs XSD →
Shared Holdings(9)
The top 9 shared positions account for 100% of the overlap, led by MTSI, LSCC and SITM.
 MTSIMACOM Technology Solutions Holdings Inc. COM | 0.67% | 2.19% | 0.67% |
|---|---|---|---|
 LSCCLattice Semiconductor Corporation COM | 0.57% | 2.49% | 0.57% |
 SITMSitime Corporation COM | 0.45% | 2.66% | 0.45% |
 RMBSRambus Inc. COM | 0.45% | 1.82% | 0.45% |
 CRUSCirrus Logic, Inc. COM | 0.25% | 2.01% | 0.25% |
 SLABSilicon Laboratories, Inc. COM | 0.20% | 2.57% | 0.20% |
 ALGMAllegro MicroSystems Inc COM | 0.17% | 2.45% | 0.17% |
 SYNASynaptics Incorporated COM | 0.15% | 2.03% | 0.15% |
 OLEDUniversal Display Corporation | 0.12% | 2.56% | 0.12% |
Frequently Asked Questions
How much do IVOO and XSD overlap?
IVOO and XSD overlap by 3.0% of portfolio weight. They share 9 holdings (IVOO holds 400 positions and XSD holds 46), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVOO and XSD?
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 IVOO and XSD?
The largest positions held by both funds are MTSI, LSCC, SITM, RMBS and CRUS. Together the top 9 shared positions account for 100% of the total overlap.
What does IVOO own that XSD doesn't?
391 positions (96.8% of IVOO) are unique to IVOO, led by FLEX, TWLO and FTI. In the other direction, 37 positions (79.2% of XSD) are unique to XSD.