IWO vs VXF: Holdings Overlap
IWOiShares Russell 2000 Growth ETF
iShares · 1101 holdings · $14.8B · as of 2026-03-31
VXFVanguard Extended Market Index Fund
Vanguard · 3359 holdings · $32.2B · as of 2026-03-31
How similar are IWO and VXF?
iShares Russell 2000 Growth ETF (IWO, by iShares) holds 1101 positions; Vanguard Extended Market Index Fund (VXF, by Vanguard) holds 3359. They have 1049 holdings in common, and by portfolio weight the two funds are 24.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 24.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1049IWO holds 1101 · VXF holds 3359
- Weight in Shared Holdings
- IWO 97%·VXF 26%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 IWO
52 of 1101 positions (2.4% of the fund) are not held by VXF. Showing the top 30 by weight.
Only in VXF
2310 of 3359 positions (73.9% of the fund) are not held by IWO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWO | VXF |
|---|---|---|
| Industrials | 23.7% | 19.5% |
| Health Care | 23.1% | 13.3% |
| Information Technology | 19.0% | 16.3% |
| Financials | 8.6% | 15.0% |
| Consumer Discretionary | 7.3% | 9.8% |
| Other Sectors | 14.1% | 23.6% |
| Unclassified | 4.0% | 2.4% |
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 (4% of IWO, 2% of VXF).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWO | +1.2% | +21.0% | +34.7% | +17.5% | +5.9% | +11.0% | 0.42% |
| VXF | +2.4% | +18.9% | +26.9% | +18.6% | +6.9% | +12.0% | 0.99% |
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 IWO vs VXF →
Shared Holdings(1049)
The top 10 shared positions account for 9% of the overlap, led by BE, CDE and FN.
 BEBloom Energy Corporation COM CL A | 1.99% | 0.48% | 0.48% |
|---|---|---|---|
 CDECoeur Mining Inc COM NEW | 0.64% | 0.27% | 0.27% |
 FNFabrinet COM USD0.01 | 1.26% | 0.26% | 0.26% |
 NXTNextpower Inc. CLASS A COM | 0.94% | 0.25% | 0.25% |
 CRDOCredo Technology Group Holding Ltd ORDINARY SHARES | 1.02% | 0.20% | 0.20% |
 KTOSKratos Defense & Security Solutions, Inc. COM NEW | 0.86% | 0.18% | 0.18% |
 BBIOBridgebio Pharma Inc COM | 0.79% | 0.17% | 0.17% |
 STRLSterling Infrastructure Inc COM | 0.81% | 0.17% | 0.17% |
 HLHecla Mining Company COM | 0.19% | 0.17% | 0.17% |
 AEISAdvanced Energy Industries, Inc. COM | 0.82% | 0.17% | 0.17% |
 GHGuardant Health Inc COM | 0.77% | 0.16% | 0.16% |
 ENSGEnsign Group, Inc. (The) | 0.76% | 0.16% | 0.16% |
 MODModine Manufacturing Co. COM | 0.76% | 0.16% | 0.16% |
 IONQIonq Inc COM | 0.67% | 0.14% | 0.14% |
 DYDycom Industries, Inc. COM | 0.66% | 0.14% | 0.14% |
 SPXCSPX Technologies, Inc. COM | 0.65% | 0.14% | 0.14% |
 MDGLMadrigal Pharmaceuticals Inc COM | 0.60% | 0.13% | 0.13% |
| Chart Industries Inc COM | 0.63% | 0.13% | 0.13% |
 RMBSRambus Inc. COM | 0.62% | 0.13% | 0.13% |
 ARWRArrowhead Pharmaceuticals Inc COM | 0.57% | 0.12% | 0.12% |
 AHRAmerican Healthcare REIT Inc. COM SHS | 0.20% | 0.11% | 0.11% |
 MOG-AMoog, Inc., Class A | 0.55% | 0.11% | 0.11% |
 WTSWatts Water Technologies, Inc., Class A | 0.53% | 0.11% | 0.11% |
 PLPlanet Labs PBC, Class A | 0.51% | 0.11% | 0.11% |
 IDCCInterDigital, Inc. COM | 0.52% | 0.11% | 0.11% |
Showing the top 250 of 1049 shared holdings by overlap weight.
Frequently Asked Questions
How much do IWO and VXF overlap?
IWO and VXF overlap by 24.4% of portfolio weight. They share 1049 holdings (IWO holds 1101 positions and VXF holds 3359), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWO and VXF?
The two portfolios are 24.4% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IWO and VXF?
The largest positions held by both funds are BE, CDE, FN, NXT and CRDO. Together the top 10 shared positions account for 9% of the total overlap.
What does IWO own that VXF doesn't?
52 positions (2.4% of IWO) are unique to IWO, led by XENE, STNE and PPTA. In the other direction, 2310 positions (73.9% of VXF) are unique to VXF.