Home > Compare > FCFMX vs FXAIX Holdings as of May 31, 2026

FCFMX vs FXAIX: Portfolio Overlap

Fidelity Series Total Market Index Fund vs Fidelity 500 Index Fund

88.7%

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.

FCFMX

3815 equity holdings
as of May 31, 2026

FXAIX

503 equity holdings
as of May 31, 2026

503 stocks held in common

Overlap View Venn Diagram

Overlapping Holdings

10 Top 10 of 503 shared, by overlap contribution

#	Stock	FCFMX	FXAIX	Overlap%
1	NVDA	7.01%	7.90%	7.01%
2	AAPL	6.26%	7.05%	6.26%
3	MSFT	4.57%	5.15%	4.57%
4	AMZN	3.61%	4.07%	3.61%
5	GOOGL	3.03%	3.41%	3.03%
6	AVGO	2.89%	3.26%	2.89%
7	GOOG	2.40%	2.71%	2.40%
8	META	1.89%	2.13%	1.89%
9	TSLA	1.67%	1.89%	1.67%
10	MU	1.49%	1.68%	1.49%

Most Divergent Holdings Stocks held by one fund but absent from the other

Only in FCFMX — Fidelity Series Total Market Index Fund

Stock	Weight
MRVL	0.24%
SNOW	0.12%
NET	0.10%
BE	0.10%
RKLB	0.09%

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Frequently Asked Questions (FAQs)

What is the portfolio overlap between FCFMX and FXAIX?

FCFMX (Fidelity Series Total Market Index Fund) and FXAIX (Fidelity 500 Index Fund) share 88.7% portfolio overlap as of their May 31, 2026 filings, across 503 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 FCFMX and FXAIX 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 FCFMX and FXAIX?

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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