IWP vs VXF: Holdings Overlap
IWPiShares Russell Mid-Cap Growth ETF
iShares · 277 holdings · $20.5B · as of 2026-03-31
VXFVanguard Extended Market Index Fund
Vanguard · 3359 holdings · $32.2B · as of 2026-03-31
How similar are IWP and VXF?
iShares Russell Mid-Cap Growth ETF (IWP, by iShares) holds 277 positions; Vanguard Extended Market Index Fund (VXF, by Vanguard) holds 3359. They have 180 holdings in common, and by portfolio weight the two funds are 18.9% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 18.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 180IWP holds 277 · VXF holds 3359
- Weight in Shared Holdings
- IWP 38%·VXF 25%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 IWP
97 of 277 positions (61.7% of the fund) are not held by VXF. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWP | VXF |
|---|---|---|
| Industrials | 24.4% | 19.5% |
| Consumer Discretionary | 21.2% | 9.8% |
| Information Technology | 15.6% | 16.3% |
| Financials | 8.5% | 15.0% |
| Health Care | 14.9% | 13.3% |
| Other Sectors | 15.3% | 23.6% |
| Unclassified | 0.0% | 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 (0% of IWP, 2% of VXF).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWP | +1.5% | +5.4% | +3.1% | +14.6% | +5.1% | +12.1% | 0.34% |
| 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 IWP vs VXF →
Shared Holdings(180)
The top 10 shared positions account for 27% of the overlap, led by NET, LNG and ALNY.
 NETCloudflare, Inc., Class A | 2.33% | 0.90% | 0.90% |
|---|---|---|---|
 LNGCheniere Energy Inc COM NEW | 0.98% | 0.84% | 0.84% |
 ALNYAlnylam Pharmaceuticals Inc. COM | 1.51% | 0.60% | 0.60% |
 RBLXRoblox Corporation CL A | 1.26% | 0.51% | 0.51% |
 INSMInsmed Inc COM PAR $.01 | 1.15% | 0.48% | 0.48% |
 RKLBRocket Lab Corp. COM | 1.13% | 0.41% | 0.41% |
 NTRANatera Inc. COM | 0.95% | 0.38% | 0.38% |
 VEEVVeeva Systems, Inc., Class A | 0.75% | 0.36% | 0.36% |
 CPNGCoupang, Inc., Class A | 0.89% | 0.35% | 0.35% |
 FTAIFTAI Aviation Ltd COM USD0.01 | 0.90% | 0.34% | 0.34% |
 LPLALPL Financial Holdings Inc. COM | 0.86% | 0.33% | 0.33% |
 ASTSAST SpaceMobile, Inc., Class A | 0.60% | 0.28% | 0.28% |
 BURLBurlington Stores Inc. COM | 0.74% | 0.28% | 0.28% |
 PEverpure, Inc., Class A | 0.57% | 0.25% | 0.25% |
 FLUTFlutter Entertainment PLC ORD EUR0.09 (DI) | 0.48% | 0.24% | 0.24% |
 RDDTReddit, Inc., Class A | 0.63% | 0.24% | 0.24% |
 HEI-AHEICO Corp., Class A | 0.57% | 0.21% | 0.21% |
 SGISomnigroup International Inc. COM | 0.54% | 0.21% | 0.21% |
 ALABAstera Labs Inc COM | 0.51% | 0.20% | 0.20% |
 FWONKLiberty Media Corp.-Liberty Formula One, Class C | 0.20% | 0.26% | 0.20% |
 ZSZscaler Inc COM | 0.50% | 0.20% | 0.20% |
 AFRMAffirm Holdings, Inc., Class A | 0.27% | 0.18% | 0.18% |
 OKTAOkta Inc. Class A | 0.19% | 0.18% | 0.18% |
 NBIXNeurocrine Biosciences Inc COM | 0.39% | 0.18% | 0.18% |
 PENPenumbra Inc. COM | 0.45% | 0.18% | 0.18% |
Frequently Asked Questions
How much do IWP and VXF overlap?
IWP and VXF overlap by 18.9% of portfolio weight. They share 180 holdings (IWP holds 277 positions and VXF holds 3359), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWP and VXF?
The two portfolios are 18.9% 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 IWP and VXF?
The largest positions held by both funds are NET, LNG, ALNY, RBLX and INSM. Together the top 10 shared positions account for 27% of the total overlap.
What does IWP own that VXF doesn't?
97 positions (61.7% of IWP) are unique to IWP, led by VRT, HWM and RCL. In the other direction, 3179 positions (75.0% of VXF) are unique to VXF.