ETF comparison
IWM vs VBK
Both US Small Cap.
iShares Russell 2000 ETF · Vanguard Morningstar Small-Cap Growth ETF
Holdings overlap
275 positions appear in both funds. Buying equal dollars of IWM and VBK would leave roughly 25.0% 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
VBK is 14 bps cheaper than IWM. On a $100,000 position that's about $140/yr more in fees for IWM.
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 IWM vs VBK.
Top shared holdings
275 shared in total| # | Holding | In IWM | In VBK | Overlap |
|---|---|---|---|---|
| 1 | Hut 8 Corp. | 0.37% | 0.33% | 0.33% |
| 2 | Cytokinetics, Inc. | 0.35% | 0.32% | 0.32% |
| 3 | BrightSpring Health Services, Inc. | 0.35% | 0.32% | 0.32% |
| 4 | MaxLinear, Inc. | 0.34% | 0.31% | 0.31% |
| 5 | Argan, Inc. | 0.34% | 0.30% | 0.30% |
| 6 | Krystal Biotech, Inc. | 0.30% | 0.29% | 0.29% |
| 7 | CareTrust REIT, Inc. | 0.28% | 0.27% | 0.27% |
| 8 | JFrog Ltd. | 0.31% | 0.26% | 0.26% |
| 9 | Riot Platforms, Inc. | 0.30% | 0.26% | 0.26% |
| 10 | Cipher Digital, Inc. | 0.26% | 0.27% | 0.26% |
| 11 | ESCO Technologies, Inc. | 0.29% | 0.25% | 0.25% |
| 12 | Alkermes plc | 0.27% | 0.25% | 0.25% |
Only in IWM
1,739 total- Moog, Inc. 0.38%
- Viasat, Inc. 0.35%
- UMB Financial Corp. 0.33%
- Old National Bancorp 0.28%
- FirstCash Holdings, Inc. 0.28%
- Compass, Inc. 0.27%
- EnerSys 0.27%
- Praxis Precision Medicines, Inc. 0.26%
- Terex Corp. 0.26%
- Plexus Corp. 0.25%
Only in VBK
268 total- Credo Technology Group Holding Ltd 1.27%
- REVOLUTION Medicines Inc 1.06%
- Astera Labs Inc 1.05%
- Natera Inc 1.04%
- Twilio Inc 0.88%
- Casey's General Stores Inc 0.83%
- Carpenter Technology Corp 0.82%
- Curtiss-Wright Corp 0.79%
- FTAI Aviation Ltd 0.78%
- nVent Electric PLC 0.77%
Related comparisons
More comparisons with IWM
- IWM vs SPMD · State Street SPDR Portfolio S&P 400 Mid Cap ETF 11.2%
- IWM vs IJH · iShares Core S&P Mid-Cap ETF 11.2%
- IWM vs IVOO · Vanguard S&P Mid-Cap 400 Index Fund ETF Shares 11.1%
- IWM vs MDY · State Street SPDR S&P MIDCAP 400 ETF Trust 11.0%
- IWM vs DFAC · U.S. Core Equity 2 Portfolio-ETF Class Shares 10.1%
- IWM vs IJJ · iShares S&P Mid-Cap 400 Value ETF 9.5%
More comparisons with VBK
- VBK vs FNDA · Schwab Fundamental U.S. Small Company ETF 24.8%
- VBK vs IWO · iShares Russell 2000 Growth ETF 20.7%
- VBK vs VIOO · Vanguard S&P Small-Cap 600 Index Fund ETF Shares 17.0%
- VBK vs SPSM · State Street SPDR Portfolio S&P 600 Small Cap ETF 16.5%
- VBK vs IJR · iShares Core S&P Small-Cap ETF 16.4%
- VBK vs VIOG · Vanguard S&P Small-Cap 600 Growth Index Fund ETF Shares 15.4%
Percentages are holdings overlap with the named fund.
Open IWM or VBK 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.