Fund screener · Fidelity

FSMDX: Fidelity Mid Cap Index Fund

Mutual fund
Stock fund

Fidelity Mid Cap Index Fund (FSMDX) is a Fidelity mutual fund with a 0.025% expense ratio, 821 holdings and $52.1B in net assets. Largest sector: Technology (17%).

Fee

0.025%

prospectus Jun 24, 2026

Net assets

$52.1B

Launched

Sep 9, 2011

Holdings

821

as of Jul 31, 2026

Top 10 weight

5.9%

largest ten holdings

Largest sector

Technology

17.1%

Yield

—

Benchmark

—

FSMDX's holdings are as of Jul 31, 2026 — a mutual fund reports its holdings to the SEC quarterly, one to three months after the date.

Total returns

1 week

+0.6%

1 month

+3.2%

3 months

+0.4%

6 months

+6.2%

Year to date

+15.4%

1 year

+16.8%

Price change plus distributions, to Oct 30, 2026.

Performance

Sector breakdown

Technology

17.1%

Industrials

16.5%

Financial Services

13.2%

Healthcare

11.1%

Consumer Cyclical

10.3%

Real Estate

7.1%

Energy

6.4%

Utilities

5.8%

Consumer Defensive

4.6%

Basic Materials

4.5%

Communication Services

3.4%

Industry breakdown

Software—Application

4.4%

Utilities—Regulated Electric

4.3%

Software—Infrastructure

3.7%

Specialty Industrial Machinery

2.9%

Diagnostics & Research

2.8%

Banks—Regional

2.7%

Asset Management

2.4%

Aerospace & Defense

2.3%

Biotechnology

2.3%

Oil & Gas E&P

2.1%

The 10 largest of 34 industries (each at least 1%). Industries come from market-data classification and can differ from the fund issuer's own categories.

Holdings (821)

​

1

SNOW

Snowflake

0.72%

2

MPC

MARATHON PETROLEUM

0.68%

3

DDOG

DATADOG CLASS A

0.64%

4

NET

Cloudflare Class A

0.64%

5

PSX

PHILLIPS 66

0.62%

6

RCL

ROYAL CARIBBEAN CRUISES LTD

0.58%

7

SPG

SIMON PROPERTY GROUP LP

0.53%

8

DLR

DIGITAL REALTY TRUST LP

0.50%

9

ALL

ALLSTATE

0.49%

10

URI

UNITED RENTALS

0.49%

11

HOOD

ROBINHOOD MARKETS A

0.48%

12

HPE

HEWLETT PACKARD ENTERPRISE

0.46%

13

KMI

KINDER MORGAN

0.46%

14

WBD

WARNER BROS DISCOVERY

0.46%

15

BKR

BAKER HUGHES HOLDINGS

0.44%

16

FIX

COMFORT SYSTEMS USA

0.44%

17

GWW

WW GRAINGER

0.44%

18

O

REALTY INCOME

0.43%

19

DAL

DELTA AIR LINES

0.42%

20

F

FORD MOTOR

0.42%

21

TER

TERADYNE

0.42%

22

TRGP

TARGA RESOURCES

0.42%

23

COR

CENCORA

0.42%

24

OKE

ONEOK

0.42%

25

NUE

NUCOR

0.41%

1–25 of 821


Compare FSMDX

Data from Fidelity and its SEC filings; prices and returns from market data. Page updated November 1, 2026. Holdings and figures change over time. For information only — not investment advice.