ETF comparison
IJR vs VIOO
Both US Small Cap.
iShares Core S&P Small-Cap ETF · Vanguard S&P Small-Cap 600 Index Fund ETF Shares
Holdings overlap
587 positions appear in both funds. Buying equal dollars of IJR and VIOO would leave roughly 89.8% of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
IJR is 1 bps cheaper than VIOO. On a $100,000 position that's about $10/yr more in fees for VIOO.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IJR vs VIOO.
Top shared holdings
587 shared in total| # | Holding | In IJR | In VIOO | Overlap |
|---|---|---|---|---|
| 1 | Eastman Chemical Company | 0.57% | 0.55% | 0.55% |
| 2 | Element Solutions Inc | 0.51% | 0.51% | 0.51% |
| 3 | Primoris Services Corp. | 0.50% | 0.52% | 0.50% |
| 4 | LKQ Corporation | 0.49% | 0.54% | 0.49% |
| 5 | Formfactor Inc | 0.49% | 0.49% | 0.49% |
| 6 | Semtech Corporation | 0.46% | 0.50% | 0.46% |
| 7 | Armstrong World Industries, Inc. | 0.46% | 0.47% | 0.46% |
| 8 | Sanmina Corp | 0.46% | 0.54% | 0.46% |
| 9 | ESCO Technologies Inc. | 0.48% | 0.45% | 0.45% |
| 10 | Krystal Biotech Inc | 0.44% | 0.45% | 0.44% |
| 11 | Zurn Elkay Water Solutions Corporation | 0.43% | 0.48% | 0.43% |
| 12 | JBT Marel Corp. | 0.43% | 0.51% | 0.43% |
Only in IJR
18 total- Argan Inc 0.49%
- Match Group Inc 0.47%
- Molina Healthcare, Inc. 0.45%
- Paycom Software Inc 0.39%
- Lamb Weston Holdings Inc 0.38%
- VSE Corp. 0.35%
- Lyft Inc 0.35%
- Rithm Capital Corp. 0.34%
- Piper Sandler Companies 0.34%
- Laureate Education, Inc. 0.31%
Only in VIOO
18 total- Solstice Advanced Materials Inc 0.79%
- Moog Inc 0.61%
- InterDigital Inc 0.60%
- CareTrust REIT Inc 0.58%
- SiTime Corp 0.55%
- Piper Sandler Cos 0.31%
- Vicor Corp 0.29%
- TEGNA Inc 0.21%
- Alexander & Baldwin Inc 0.10%
- Armada Hoffler Properties Inc 0.03%
Open IJR or VIOO at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.