IWP vs VB: Holdings Overlap
IWPiShares Russell Mid-Cap Growth ETF
iShares · 277 holdings · $20.5B · as of 2026-03-31
VBVanguard Small-cap Index Fund
Vanguard · 1312 holdings · $82.5B · as of 2026-03-31
How similar are IWP and VB?
iShares Russell Mid-Cap Growth ETF (IWP, by iShares) holds 277 positions; Vanguard Small-cap Index Fund (VB, by Vanguard) holds 1312. They have 192 holdings in common, and by portfolio weight the two funds are 17.2% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 17.2%Sum of the smaller weight of each shared holding
- Shared Holdings
- 192IWP holds 277 · VB holds 1312
- Weight in Shared Holdings
- IWP 37%·VB 24%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
85 of 277 positions (62.8% of the fund) are not held by VB. Showing the top 30 by weight.
Only in VB
1120 of 1312 positions (76.0% of the fund) are not held by IWP. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWP | VB |
|---|---|---|
| Industrials | 24.4% | 21.2% |
| Consumer Discretionary | 21.2% | 10.5% |
| Information Technology | 15.6% | 13.8% |
| Health Care | 14.9% | 11.6% |
| Financials | 8.5% | 13.4% |
| Other Sectors | 15.3% | 28.5% |
| Unclassified | 0.0% | 0.7% |
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, 1% of VB).
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% |
| VB | +2.5% | +19.5% | +29.1% | +15.9% | +8.1% | +11.3% | 1.18% |
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 VB →
Shared Holdings(192)
The top 10 shared positions account for 20% of the overlap, led by NRG, EME and TPR.
 NRGNRG Energy, Inc. COM NEW | 1.08% | 0.43% | 0.43% |
|---|---|---|---|
 EMEEmcor Group Inc COM | 0.41% | 0.46% | 0.41% |
 TPRTapestry Inc COM | 0.95% | 0.40% | 0.40% |
 JBLJabil Inc COM | 0.65% | 0.37% | 0.37% |
 NTRANatera Inc. COM | 0.95% | 0.37% | 0.37% |
 FTAIFTAI Aviation Ltd COM USD0.01 | 0.90% | 0.35% | 0.35% |
 FIXComfort Systems USA Inc. COM | 1.73% | 0.34% | 0.34% |
 ASTSAST SpaceMobile, Inc., Class A | 0.60% | 0.30% | 0.30% |
 PEverpure, Inc., Class A | 0.57% | 0.26% | 0.26% |
 RKLBRocket Lab Corp. COM | 1.13% | 0.26% | 0.26% |
 INSMInsmed Inc COM PAR $.01 | 1.15% | 0.25% | 0.25% |
 ALABAstera Labs Inc COM | 0.51% | 0.22% | 0.22% |
 SGISomnigroup International Inc. COM | 0.54% | 0.21% | 0.21% |
 LIILennox International Inc. COM | 0.53% | 0.20% | 0.20% |
 DECKDeckers Outdoor Corp. COM | 0.52% | 0.20% | 0.20% |
 FWONKLiberty Media Corp.-Liberty Formula One, Class C | 0.20% | 0.27% | 0.20% |
 TPLTexas Pacific Land Corporation COM | 0.98% | 0.19% | 0.19% |
 OKTAOkta Inc. Class A | 0.19% | 0.19% | 0.19% |
 NBIXNeurocrine Biosciences Inc COM | 0.39% | 0.19% | 0.19% |
 TOSTToast, Inc., Class A | 0.44% | 0.18% | 0.18% |
 GWREGuidewire Software Inc COM | 0.46% | 0.18% | 0.18% |
 LSCCLattice Semiconductor Corporation COM | 0.39% | 0.18% | 0.18% |
 PENPenumbra Inc. COM | 0.45% | 0.17% | 0.17% |
 AFRMAffirm Holdings, Inc., Class A | 0.27% | 0.17% | 0.17% |
 XPOXPO Inc COM | 0.17% | 0.30% | 0.17% |
Frequently Asked Questions
How much do IWP and VB overlap?
IWP and VB overlap by 17.2% of portfolio weight. They share 192 holdings (IWP holds 277 positions and VB holds 1312), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWP and VB?
The two portfolios are 17.2% 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 VB?
The largest positions held by both funds are NRG, EME, TPR, JBL and NTRA. Together the top 10 shared positions account for 20% of the total overlap.
What does IWP own that VB doesn't?
85 positions (62.8% of IWP) are unique to IWP, led by VRT, HWM and RCL. In the other direction, 1120 positions (76.0% of VB) are unique to VB.