IWM vs VTWO: Holdings Overlap
iShares · 1941 holdings · $82.2B · as of 2026-03-31
VTWOVanguard Russell 2000 Index Fund
Vanguard · 1952 holdings · $17.4B · as of 2026-05-31
Holdings snapshots are 61 days apart (IWM: 2026-03-31, VTWO: 2026-05-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IWM and VTWO?
iShares Russell 2000 ETF (IWM, by iShares) holds 1941 positions; Vanguard Russell 2000 Index Fund (VTWO, by Vanguard) holds 1952. They have 1899 holdings in common, and by portfolio weight the two funds are 89.2% identical. In practical terms the pair is essentially interchangeable, so holding both adds little diversification.
- Overlap by Weight
- 89.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1899IWM holds 1941 · VTWO holds 1952
- Weight in Shared Holdings
- IWM 98%·VTWO 100%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IWM
42 of 1941 positions (1.2% of the fund) are not held by VTWO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWM | VTWO |
|---|---|---|
| Industrials | 17.9% | 19.4% |
| Information Technology | 13.6% | 17.8% |
| Health Care | 16.6% | 15.5% |
| Financials | 15.3% | 14.3% |
| Consumer Discretionary | 8.0% | 7.3% |
| Other Sectors | 22.7% | 20.8% |
| Unclassified | 5.5% | 4.8% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (5% of IWM, 5% of VTWO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWM | +1.8% | +23.0% | +38.6% | +17.1% | +7.5% | +10.8% | 0.88% |
| VTWO | +1.8% | +23.1% | +38.8% | +17.3% | +7.7% | +11.0% | 1.07% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IWM vs VTWO →
Shared Holdings(1899)
The top 10 shared positions account for 6% of the overlap, led by BE, FN and NXT.
 BEBloom Energy Corporation COM CL A | 1.01% | 1.83% | 1.01% |
|---|---|---|---|
 FNFabrinet COM USD0.01 | 0.64% | 0.69% | 0.64% |
 NXTNextpower Inc. CLASS A COM | 0.60% | 0.67% | 0.60% |
 CDECoeur Mining Inc COM NEW | 0.65% | 0.58% | 0.58% |
 CRDOCredo Technology Group Holding Ltd ORDINARY SHARES | 0.52% | 1.12% | 0.52% |
 ECHOEchoStar Corp., Class A | 0.54% | 0.51% | 0.51% |
 STRLSterling Infrastructure Inc COM | 0.41% | 0.75% | 0.41% |
 GHGuardant Health Inc COM | 0.39% | 0.47% | 0.39% |
 MODModine Manufacturing Co. COM | 0.39% | 0.43% | 0.39% |
 KTOSKratos Defense & Security Solutions, Inc. COM NEW | 0.43% | 0.34% | 0.34% |
 TTMITTM Technologies Inc COM | 0.34% | 0.52% | 0.34% |
 IONQIonq Inc COM | 0.34% | 0.63% | 0.34% |
 DYDycom Industries, Inc. COM | 0.34% | 0.44% | 0.34% |
 AEISAdvanced Energy Industries, Inc. COM | 0.41% | 0.33% | 0.33% |
 HLHecla Mining Company COM | 0.40% | 0.33% | 0.33% |
 RMBSRambus Inc. COM | 0.32% | 0.46% | 0.32% |
 BBIOBridgebio Pharma Inc COM | 0.40% | 0.31% | 0.31% |
 SPXCSPX Technologies, Inc. COM | 0.33% | 0.31% | 0.31% |
 ARWRArrowhead Pharmaceuticals Inc COM | 0.29% | 0.31% | 0.29% |
 MOG-AMoog, Inc., Class A | 0.28% | 0.30% | 0.28% |
 UMBFUMB Financial Corporation | 0.28% | 0.28% | 0.28% |
 ENSGEnsign Group, Inc. (The) | 0.38% | 0.28% | 0.28% |
| Chart Industries Inc COM | 0.32% | 0.28% | 0.28% |
 CTRECaretrust Reit Inc COM | 0.28% | 0.27% | 0.27% |
 CYTKCytokinetics Incorporated | 0.27% | 0.29% | 0.27% |
Showing the top 250 of 1899 shared holdings by overlap weight.
Frequently Asked Questions
How much do IWM and VTWO overlap?
IWM and VTWO overlap by 89.2% of portfolio weight. They share 1899 holdings (IWM holds 1941 positions and VTWO holds 1952), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWM and VTWO?
The two portfolios are 89.2% identical by weight. Owning both is largely redundant: they are close to the same portfolio, so a second position mostly duplicates the first.
What are the biggest shared holdings of IWM and VTWO?
The largest positions held by both funds are BE, FN, NXT, CDE and CRDO. Together the top 10 shared positions account for 6% of the total overlap.
What does IWM own that VTWO doesn't?
42 positions (1.2% of IWM) are unique to IWM, led by 430, ACLX and AM6. In the other direction, 53 positions (0.1% of VTWO) are unique to VTWO.