ETF and Mutual Fund Analysis

Holdings as of September 30, 2025 (IVV) and March 31, 2026 (VB)

ETF and Mutual Fund Analysis

Overlap, Comparison, and Diversification for Your Portfolio

Home > Compare > IVV vs VB Holdings as of September 30, 2025 (IVV) and March 31, 2026 (VB)

IVV vs VB: Portfolio Overlap

iShares Core S&P 500 ETF vs Vanguard Small-Cap Index Fund

2.8%
Weighted portfolio overlap
Low Overlap

Low Overlap. The two portfolios have highly distinct allocations: little of the weight sits in the same stocks.

IVV
503 equity holdings
as of September 30, 2025
VB
1312 equity holdings
as of March 31, 2026
115 stocks held in common
Overlap View Venn Diagram
2.8% OVERLAP IVV VB
Overlapping Holdings
10 Top 10 of 115 shared, by overlap contribution
# Stock IVV VB Overlap%
1
EQT
 0.06% 0.28% 0.06%
2
DD
 0.06% 0.26% 0.06%
3
NRG
 0.05% 0.44% 0.05%
4
EME
 0.05% 0.46% 0.05%
5
ATO
 0.05% 0.43% 0.05%
6
EXE
 0.04% 0.37% 0.04%
7
PTC
 0.04% 0.24% 0.04%
8
LDOS
 0.04% 0.14% 0.04%
9
WSM
 0.04% 0.31% 0.04%
10
FSLR
 0.04% 0.14% 0.04%
Most Divergent Holdings Stocks held by one fund but absent from the other
Only in IVV — iShares Core S&P 500 ETF
StockWeight
NVDA7.98%
MSFT6.75%
AAPL6.62%
AMZN3.74%
META2.79%
Only in VB — VANGUARD SMALL-CAP INDEX FUND
StockWeight
CIEN0.39%
FTI0.39%
CASY0.38%
UTHR0.37%
NTRA0.37%

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Frequently Asked Questions (FAQs)
What is the portfolio overlap between IVV and VB?

IVV (iShares Core S&P 500 ETF) and VB (Vanguard Small-Cap Index Fund) share 2.8% portfolio overlap as of IVV's September 30, 2025 filing and VB's March 31, 2026 filing, across 115 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 IVV and VB invest in the same stocks?

Mostly not. Only a small portion of their portfolios overlaps — these funds hold largely different stocks and genuinely diversify each other.

What are the top stocks held by both IVV and VB?

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

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