ETF comparison
IWO vs VTWO
Both US Small Cap.
iShares Russell 2000 Growth ETF · Vanguard Russell 2000 Index Fund ETF Shares
Holdings overlap
987 positions appear in both funds. Buying equal dollars of IWO and VTWO would leave roughly 45.4% 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
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
987 shared in total| # | Holding | In IWO | In VTWO | Overlap |
|---|---|---|---|---|
| 1 | Hut 8 Corp. | 0.38% | 0.36% | 0.36% |
| 2 | D-Wave Quantum, Inc. | 0.53% | 0.32% | 0.32% |
| 3 | Moog, Inc. | 0.73% | 0.30% | 0.30% |
| 4 | Riot Platforms, Inc. | 0.39% | 0.28% | 0.28% |
| 5 | Praxis Precision Medicines, Inc. | 0.51% | 0.26% | 0.26% |
| 6 | Argan, Inc. | 0.66% | 0.26% | 0.26% |
| 7 | FirstCash Holdings, Inc. | 0.53% | 0.26% | 0.26% |
| 8 | EnerSys | 0.49% | 0.25% | 0.25% |
| 9 | Rigetti Computing, Inc. | 0.37% | 0.24% | 0.24% |
| 10 | StoneX Group, Inc. | 0.52% | 0.24% | 0.24% |
| 11 | BrightSpring Health Services, Inc. | 0.68% | 0.23% | 0.23% |
| 12 | Core Scientific, Inc. | 0.42% | 0.23% | 0.23% |
Only in IWO
146 total- JFrog Ltd. 0.59%
- AXT, Inc. 0.27%
- ServiceTitan, Inc. 0.26%
- Ondas, Inc. 0.24%
- Opendoor Technologies, Inc. 0.22%
- Hinge Health, Inc. 0.21%
- Stubhub Holdings, Inc. 0.17%
- Kiniksa Pharmaceuticals International plc 0.17%
- RH 0.16%
- Establishment Labs Holdings, Inc. 0.14%
Only in VTWO
958 total- Bloom Energy Corp 1.83%
- Credo Technology Group Holding Ltd 1.12%
- Sterling Infrastructure Inc 0.75%
- Fabrinet 0.69%
- Nextpower Inc 0.67%
- IonQ Inc 0.63%
- Coeur Mining Inc 0.58%
- TTM Technologies Inc 0.52%
- EchoStar Corp 0.51%
- Guardant Health Inc 0.47%
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 IJT · iShares S&P Small-Cap 600 Growth ETF 37.2%
- IWO vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 36.9%
More comparisons with VTWO
- VTWO vs IWN · iShares Russell 2000 Value ETF 45.4%
- VTWO vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 40.9%
- VTWO vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 40.4%
- VTWO vs IJR · iShares Core S&P Small-Cap ETF 40.2%
- VTWO vs FNDA · Schwab Fundamental U.S. Small Company ETF 38.3%
- VTWO vs VBK · Vanguard Morningstar Small-Cap Growth ETF 35.2%
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.