IJR vs VIOO: Holdings Overlap
IJRiShares Core S&P Small-Cap ETF
iShares · 605 holdings · $113.4B · as of 2026-03-31
VIOOVanguard S&P Small-cap 600 Index Fund
Vanguard · 603 holdings · $4.4B · as of 2026-05-31
Holdings snapshots are 61 days apart (IJR: 2026-03-31, VIOO: 2026-05-31). 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 IJR and VIOO?
iShares Core S&P Small-Cap ETF (IJR, by iShares) holds 605 positions; Vanguard S&P Small-cap 600 Index Fund (VIOO, by Vanguard) holds 603. They have 591 holdings in common, and by portfolio weight the two funds are 89.2% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 89.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 591IJR holds 605 · VIOO holds 603
- Weight in Shared Holdings
- IJR 96%·VIOO 98%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 IJR
14 of 605 positions (2.5% of the fund) are not held by VIOO.
Only in VIOO
12 of 603 positions (1.9% of the fund) are not held by IJR.
Sector Breakdown
| Sector | IJR | VIOO |
|---|---|---|
| Financials | 17.4% | 17.6% |
| Industrials | 17.1% | 17.2% |
| Information Technology | 12.7% | 15.9% |
| Consumer Discretionary | 13.2% | 12.9% |
| Health Care | 11.1% | 11.0% |
| Other Sectors | 26.0% | 25.2% |
| 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 IJR, 0% of VIOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IJR | +2.4% | +24.5% | +36.4% | +14.5% | +7.7% | +10.9% | 1.10% |
| VIOO | +2.4% | +24.4% | +36.3% | +14.6% | +7.7% | +10.9% | 1.09% |
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 IJR vs VIOO →
Shared Holdings(591)
The top 10 shared positions account for 5% of the overlap, led by EMN, ESI and VIAV.
 EMNEastman Chemical Company COM | 0.57% | 0.51% | 0.51% |
|---|---|---|---|
 ESIElement Solutions Inc COM | 0.51% | 0.57% | 0.51% |
 VIAVViavi Solutions Inc COM | 0.50% | 0.66% | 0.50% |
 AGXArgan Inc COM | 0.49% | 0.54% | 0.49% |
 FORMFormfactor Inc COM | 0.49% | 0.57% | 0.49% |
 MTCHMatch Group Inc COM | 0.47% | 0.50% | 0.47% |
 SMTCSemtech Corporation COM | 0.46% | 0.83% | 0.46% |
 SANMSanmina Corporation | 0.46% | 0.83% | 0.46% |
 MOHMolina Healthcare, Inc. COM | 0.45% | 0.53% | 0.45% |
 ESEESCO Technologies Inc. COM | 0.48% | 0.44% | 0.44% |
 KRYSKrystal Biotech Inc COM | 0.44% | 0.47% | 0.44% |
 QRVOQorvo Inc COM | 0.43% | 0.51% | 0.43% |
 JBTMJBT Marel Corp. COM | 0.43% | 0.41% | 0.41% |
 ZWSZurn Elkay Water Solutions Corporation COM | 0.43% | 0.41% | 0.41% |
 SMSM Energy Co. COM | 0.46% | 0.41% | 0.41% |
 LKQLKQ Corporation COM | 0.49% | 0.41% | 0.41% |
 VSATViaSat, Inc. COM | 0.41% | 0.64% | 0.41% |
 TRNOTerreno Realty Corporation COM | 0.42% | 0.40% | 0.40% |
 AWIArmstrong World Industries, Inc. COM | 0.46% | 0.40% | 0.40% |
 PRIMPrimoris Services Corp. COM | 0.50% | 0.40% | 0.40% |
 ECGEverus Construction Group Inc. COM | 0.39% | 0.45% | 0.39% |
 PAYCPaycom Software Inc COM | 0.39% | 0.40% | 0.39% |
 FSSFederal Signal Corp. COM | 0.43% | 0.38% | 0.38% |
 RHPRyman Hospitality Properties Inc COM | 0.38% | 0.43% | 0.38% |
 MSGSMadison Square Garden Sports Corp. CL A | 0.38% | 0.40% | 0.38% |
Showing the top 250 of 591 shared holdings by overlap weight.
Frequently Asked Questions
How much do IJR and VIOO overlap?
IJR and VIOO overlap by 89.2% of portfolio weight. They share 591 holdings (IJR holds 605 positions and VIOO holds 603), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IJR and VIOO?
The two portfolios are 89.2% identical by weight. Owning both is largely redundant: they are close to the same portfolio, so a second position mostly duplicates the first.
What are the biggest shared holdings of IJR and VIOO?
The largest positions held by both funds are EMN, ESI, VIAV, AGX and FORM. Together the top 10 shared positions account for 5% of the total overlap.
What does IJR own that VIOO doesn't?
14 positions (2.5% of IJR) are unique to IJR, led by AVLA, DOCN and SDA. In the other direction, 12 positions (1.9% of VIOO) are unique to VIOO.