ETF and Mutual Fund Analysis

Holdings as of March 31, 2026 (CSPAX) and August 12, 2026 (SPY)

ETF and Mutual Fund Analysis

Overlap, Comparison, and Diversification for Your Portfolio

Home > Compare > CSPAX vs SPY Holdings as of March 31, 2026 (CSPAX) and August 12, 2026 (SPY)

CSPAX vs SPY: Portfolio Overlap

SMALLCAP World Fund Inc vs SPDR® S&P 500® ETF Trust

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
SPY
505 equity holdings
as of August 12, 2026
14 stocks held in common
Overlap View Venn Diagram
0.5% OVERLAP CSPAX SPY
Overlapping Holdings
10 Top 10 of 14 shared, by overlap contribution
# Stock CSPAX SPY Overlap%
1
LITE
 1.32% 0.11% 0.11%
2
FIX
 1.52% 0.09% 0.09%
3
FITB
 0.14% 0.08% 0.08%
4
DXCM
 0.11% 0.05% 0.05%
5
DRI
 0.08% 0.04% 0.04%
6
LEN
 0.12% 0.03% 0.03%
7
MAS
 0.13% 0.02% 0.02%
8
GNRC
 0.05% 0.02% 0.02%
9
TECH
 0.19% 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 SPY — SPDR® S&P 500® ETF Trust
StockWeight
NVDA8.14%
AAPL6.66%
MSFT5.49%
AMZN3.92%
GOOGL3.02%

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

CSPAX (SMALLCAP World Fund Inc) and SPY (SPDR® S&P 500® ETF Trust) share 0.5% portfolio overlap as of CSPAX's March 31, 2026 filing and SPY's August 12, 2026 filing, across 14 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 SPY 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 SPY?

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

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