ETF and Mutual Fund Analysis

Holdings as of March 31, 2026

ETF and Mutual Fund Analysis

Overlap, Comparison, and Diversification for Your Portfolio

Home > Compare > IWF vs VUG Holdings as of March 31, 2026

IWF vs VUG: Portfolio Overlap

iShares Russell 1000 Growth ETF vs Vanguard Growth Index Fund

84.8%
Weighted portfolio overlap
Very High Overlap

The two portfolios are structurally near-identical: most of the weight sits in the same stocks, so holding both concentrates rather than spreads capital. The tier describes what the data shows, not what to do about it.

IWF
387 equity holdings
as of March 31, 2026
VUG
153 equity holdings
as of March 31, 2026
127 stocks held in common
Overlap View Venn Diagram
84.8% OVERLAP IWF VUG
Overlapping Holdings
10 Top 10 of 127 shared, by overlap contribution
# Stock IWF VUG Overlap%
1
NVDA
 12.95% 13.33% 12.95%
2
AAPL
 11.66% 12.33% 11.66%
3
MSFT
 8.84% 9.10% 8.84%
4
AMZN
 4.67% 4.60% 4.60%
5
AVGO
 4.80% 4.41% 4.41%
6
GOOGL
 3.54% 5.54% 3.54%
7
TSLA
 3.55% 3.48% 3.48%
8
META
 3.46% 4.15% 3.46%
9
GOOG
 2.88% 4.39% 2.88%
10
LLY
 2.66% 2.60% 2.60%
Most Divergent Holdings Stocks held by one fund but absent from the other
Only in IWF — iShares Russell 1000 Growth ETF
StockWeight
ABBV1.39%
HD0.90%
KO0.52%
AMGN0.50%
MCK0.36%
Only in VUG — VANGUARD GROWTH INDEX FUND
StockWeight
WELL0.47%
EQIX0.34%
SNDK0.33%
STX0.30%
SPGI0.22%

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Frequently Asked Questions (FAQs)
What is the portfolio overlap between IWF and VUG?

IWF (iShares Russell 1000 Growth ETF) and VUG (Vanguard Growth Index Fund) share 84.8% portfolio overlap as of their March 31, 2026 filings, across 127 common stocks. Overlap is the sum of the smaller weight of each shared stock, so it reads as the share of a dollar that lands on the same companies in both funds.

Do IWF and VUG invest in the same stocks?

Almost entirely. These funds hold nearly identical portfolios and offer little differentiation between them.

What are the top stocks held by both IWF and VUG?

The most prominent shared holdings (by combined weight) are: NVDA, AAPL, MSFT. See the full common-holdings table on this page for weights in each fund.

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