ETF and Mutual Fund Analysis

Holdings as of May 31, 2026

ETF and Mutual Fund Analysis

Overlap, Comparison, and Diversification for Your Portfolio

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

FSKAX vs FXAIX: Portfolio Overlap

Fidelity 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.

FSKAX
3735 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
88.7% OVERLAP FSKAX FXAIX
Overlapping Holdings
10 Top 10 of 503 shared, by overlap contribution
# Stock FSKAX 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 FSKAX — Fidelity Total Market Index Fund
StockWeight
MRVL0.24%
SNOW0.12%
NET0.10%
BE0.10%
RKLB0.09%

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

FSKAX (Fidelity 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 FSKAX 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 FSKAX 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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