ETF comparison
IWO vs VTWO
Both US Small Cap.
iShares Russell 2000 Growth ETF · Vanguard Russell 2000 Index Fund ETF Shares
Holdings overlap
1,090 positions appear in both funds. Buying equal dollars of IWO and VTWO would leave roughly 55.2% 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
VTWO is 18 bps cheaper than IWO. On a $100,000 position that's about $180/yr more in fees for IWO.
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 IWO vs VTWO.
Top shared holdings
1,090 shared in total| # | Holding | In IWO | In VTWO | Overlap |
|---|---|---|---|---|
| 1 | JFrog Ltd. | 0.59% | 0.35% | 0.35% |
| 2 | Moog, Inc. | 0.73% | 0.34% | 0.34% |
| 3 | Glaukos Corp. | 0.48% | 0.33% | 0.33% |
| 4 | Brinker International, Inc. | 0.44% | 0.32% | 0.32% |
| 5 | BrightSpring Health Services, Inc. | 0.68% | 0.30% | 0.30% |
| 6 | Krystal Biotech, Inc. | 0.58% | 0.30% | 0.30% |
| 7 | Protagonist Therapeutics, Inc. | 0.45% | 0.29% | 0.29% |
| 8 | Twist Bioscience Corp. | 0.38% | 0.29% | 0.29% |
| 9 | FirstCash Holdings, Inc. | 0.53% | 0.28% | 0.28% |
| 10 | Praxis Precision Medicines, Inc. | 0.51% | 0.28% | 0.28% |
| 11 | InterDigital, Inc. | 0.44% | 0.28% | 0.28% |
| 12 | Ryman Hospitality Properties, Inc. | 0.48% | 0.27% | 0.27% |
Only in IWO
43 total- Nuvalent, Inc. 0.40%
- Catalyst Pharmaceuticals, Inc. 0.22%
- Marex Group plc 0.17%
- SkyWater Technology, Inc. 0.08%
- Tecnoglass, Inc. 0.06%
- Talkspace, Inc. 0.05%
- Forte Biosciences, Inc. 0.02%
- Astronics Corp. 0.02%
- XOMA Royalty Corp. 0.02%
- Esperion Therapeutics, Inc. 0.02%
Only in VTWO
901 total- CareTrust REIT Inc 0.28%
- Jackson Financial Inc 0.28%
- Viasat Inc 0.27%
- Terex Corp 0.23%
- PBF Energy Inc 0.23%
- Terreno Realty Corp 0.23%
- Matson Inc 0.22%
- Macerich Co/The 0.22%
- Essential Properties Realty Trust Inc 0.21%
- United Bankshares Inc/WV 0.21%
Related comparisons
More comparisons with IWO
- IWO vs BBSC · JPMorgan BetaBuilders U.S. Small Cap Equity ETF 44.7%
- IWO vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 40.6%
- IWO vs IJR · iShares Core S&P Small-Cap ETF 40.1%
- IWO vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 37.7%
- IWO vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 37.5%
- IWO vs IJT · iShares S&P Small-Cap 600 Growth ETF 37.2%
More comparisons with VTWO
- VTWO vs IWN · iShares Russell 2000 Value ETF 54.2%
- VTWO vs DFAS · DFA U.S. Small Cap Portfolio-ETF Class Shares 51.0%
- VTWO vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 47.3%
- VTWO vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 46.9%
- VTWO vs IJR · iShares Core S&P Small-Cap ETF 46.5%
- VTWO vs FNDA · Schwab Fundamental U.S. Small Company ETF 40.2%
Percentages are holdings overlap with the named fund.
Open IWO or VTWO 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.