IWF vs VB: how much do they overlap?
iShares Russell 1000 Growth ETF (IWF) · Vanguard Small-Cap ETF (VB)
overlap by weight · 192 shared holdings
IWF: 387 holdings (as of 2026-03-31) · VB: 1312 holdings (as of 2026-03-31)
Low overlap
What this means
IWF and VB hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in IWF | in VB |
|---|---|---|---|
| COMFORT SYSTEMS USA, INC. | FIX | 0.17% | 0.34% |
| INSMED INCORPORATED | INSM | 0.12% | 0.25% |
| ROCKET LAB CORPORATION | RKLB | 0.11% | 0.26% |
| NRG ENERGY, INC. | NRG | 0.11% | 0.43% |
| TEXAS PACIFIC LAND CORPORATION | TPL | 0.1% | 0.19% |
| TAPESTRY, INC. | TPR | 0.1% | 0.4% |
| NATERA, INC. | NTRA | 0.1% | 0.37% |
| FTAI Aviation Ltd. | FTAI | 0.09% | 0.35% |
| BURLINGTON STORES, INC. | BURL | 0.07% | 0.14% |
| JABIL INC. | JBL | 0.06% | 0.37% |
FAQ
How much do IWF and VB overlap?
IWF and VB have a 3.7% overlap by weight, sharing 192 holdings (out of 387 in IWF and 1312 in VB), based on official issuer holdings as of 2026-03-31.
What does 3.7% overlap mean?
IWF and VB hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do IWF and VB both hold?
The largest shared positions are COMFORT SYSTEMS USA, INC., INSMED INCORPORATED, ROCKET LAB CORPORATION, NRG ENERGY, INC., TEXAS PACIFIC LAND CORPORATION. The full list of top shared holdings with weights in each fund is shown on this page.