ETF and Mutual Fund Analysis

Holdings as of March 31, 2026 (CSPAX) and May 31, 2026 (FXAIX)

ETF and Mutual Fund Analysis

Overlap, Comparison, and Diversification for Your Portfolio

Home > Compare > CSPAX vs FXAIX Holdings as of March 31, 2026 (CSPAX) and May 31, 2026 (FXAIX)

CSPAX vs FXAIX: Portfolio Overlap

SMALLCAP World Fund Inc vs Fidelity 500 Index Fund

0.5%
Weighted portfolio overlap
Low Overlap

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

CSPAX
815 equity holdings
as of March 31, 2026
FXAIX
503 equity holdings
as of May 31, 2026
17 stocks held in common
Overlap View Venn Diagram
0.5% OVERLAP CSPAX FXAIX
Overlapping Holdings
10 Top 10 of 17 shared, by overlap contribution
# Stock CSPAX FXAIX Overlap%
1
FIX
 1.52% 0.10% 0.10%
2
LITE
 1.32% 0.09% 0.09%
3
FITB
 0.14% 0.07% 0.07%
4
DXCM
 0.11% 0.04% 0.04%
5
DRI
 0.08% 0.04% 0.04%
6
LEN
 0.12% 0.03% 0.03%
7
GNRC
 0.05% 0.03% 0.03%
8
MAS
 0.13% 0.02% 0.02%
9
SWKS
 0.08% 0.02% 0.02%
10
ALGN
 0.02% 0.02% 0.02%
Most Divergent Holdings Stocks held by one fund but absent from the other
Only in CSPAX — SMALLCAP World Fund Inc
StockWeight
DIPLOMA PLC1.06%
TopBuild Corp0.91%
Kokusai Electric Corp0.81%
ATI0.80%
MKSI0.75%
Only in FXAIX — Fidelity 500 Index Fund
StockWeight
NVDA7.90%
AAPL7.05%
MSFT5.15%
AMZN4.07%
GOOGL3.41%

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Frequently Asked Questions (FAQs)
What is the portfolio overlap between CSPAX and FXAIX?

CSPAX (SMALLCAP World Fund Inc) and FXAIX (Fidelity 500 Index Fund) share 0.5% portfolio overlap as of CSPAX's March 31, 2026 filing and FXAIX's May 31, 2026 filing, across 17 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 CSPAX and FXAIX 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 CSPAX and FXAIX?

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

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