ETF comparison
IWN vs VIOO
Both US Small Cap.
iShares Russell 2000 Value ETF · Vanguard S&P Small-Cap 600 Index Fund ETF Shares
Holdings overlap
394 positions appear in both funds. Buying equal dollars of IWN and VIOO would leave roughly 43.4% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
VIOO is 17 bps cheaper than IWN. On a $100,000 position that's about $170/yr more in fees for IWN.
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 IWN vs VIOO.
Top shared holdings
394 shared in total| # | Holding | In IWN | In VIOO | Overlap |
|---|---|---|---|---|
| 1 | Viasat, Inc. | 0.74% | 0.51% | 0.51% |
| 2 | Jackson Financial, Inc. | 0.41% | 0.52% | 0.41% |
| 3 | Terreno Realty Corp. | 0.45% | 0.39% | 0.39% |
| 4 | SM Energy Co. | 0.39% | 0.47% | 0.39% |
| 5 | Matson, Inc. | 0.38% | 0.38% | 0.38% |
| 6 | Macerich Co. (The) | 0.43% | 0.37% | 0.37% |
| 7 | Essential Properties Realty Trust, Inc. | 0.43% | 0.36% | 0.36% |
| 8 | Life Time Group Holdings, Inc. | 0.36% | 0.36% | 0.36% |
| 9 | JBT Marel Corp. | 0.50% | 0.34% | 0.34% |
| 10 | Lumen Technologies, Inc. | 0.48% | 0.33% | 0.33% |
| 11 | VSE Corp. | 0.39% | 0.33% | 0.33% |
| 12 | Arcosa, Inc. | 0.32% | 0.40% | 0.32% |
Only in IWN
1,028 total- Cytokinetics, Inc. 0.65%
- UMB Financial Corp. 0.62%
- CareTrust REIT, Inc. 0.59%
- Terex Corp. 0.54%
- Old National Bancorp 0.52%
- Taylor Morrison Home Corp. 0.44%
- Southwest Gas Holdings, Inc. 0.42%
- Garrett Motion, Inc. 0.41%
- Ormat Technologies, Inc. 0.40%
- Hancock Whitney Corp. 0.40%
Only in VIOO
211 total- Corcept Therapeutics Inc 0.60%
- Glaukos Corp 0.59%
- Paycom Software Inc 0.55%
- Brinker International Inc 0.55%
- Match Group Inc 0.53%
- Protagonist Therapeutics Inc 0.50%
- CarMax Inc 0.49%
- Ryman Hospitality Properties Inc 0.48%
- Eastman Chemical Co 0.46%
- Element Solutions Inc 0.45%
Related comparisons
More comparisons with IWN
- IWN vs IJR · iShares Core S&P Small-Cap ETF 42.5%
- IWN vs VIOV · Vanguard S&P Small-Cap 600 Value Index Fund ETF Shares 40.2%
- IWN vs IJS · iShares S&P Small-Cap 600 Value ETF 40.1%
- IWN vs BBSC · JPMorgan BetaBuilders U.S. Small Cap Equity ETF 38.7%
- IWN vs DFAT · DFA U.S. Targeted Value Portfolio-ETF Class Shares 38.4%
- IWN vs AVUV · Avantis US Small Cap Value ETF 35.6%
More comparisons with VIOO
- VIOO vs IWO · iShares Russell 2000 Growth ETF 37.7%
- VIOO vs FNDA · Schwab Fundamental U.S. Small Company ETF 37.6%
- VIOO vs SCHA · Schwab U.S. Small-Cap ETF 35.2%
- VIOO vs DFAS · DFA U.S. Small Cap Portfolio-ETF Class Shares 34.7%
- VIOO vs DFSV · DFA U.S. Small Cap Value Portfolio – ETF Class Shares 33.5%
- VIOO vs DFAT · DFA U.S. Targeted Value Portfolio-ETF Class Shares 32.0%
Percentages are holdings overlap with the named fund.
Open IWN 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.