ETF · holdings as filed 2026-06-30
What's inside FMDGX?
Fidelity Mid Cap Growth Index Fund
- Holdings
- 270
- positions in the fund
- Top 10
- 20%
- of fund assets
- Expense ratio
- 0.05%
- net, per year
- Fund size
- $4B
- total net assets
Top 20 holdings
| Rank | Logo | Ticker / Name | Weight | |
|---|---|---|---|---|
| 1 | D  | DDOGDATADOG INC - CLASS A | 2.29% | |
| 2 | S  | SNOWSNOWFLAKE INC | 2.29% | |
| 3 | ? | —Fidelity Revere Street Trust | 2.10% | |
| 4 | N  | NETCLOUDFLARE INC - CLASS A | 2.08% | |
| 5 | T  | TERTERADYNE INC | 2.03% | |
| 6 | A  | ALABASTERA LABS INC | 1.98% | |
| 7 | S  | SPGSIMON PROPERTY GROUP INC | 1.92% | |
| 8 | F  | FIXCOMFORT SYSTEMS USA INC | 1.85% | |
| 9 | H  | HOODROBINHOOD MARKETS INC - A | 1.71% | |
| 10 | L  | LITELUMENTUM HOLDINGS INC | 1.64% | |
| 11 | T  | TRGPTARGA RESOURCES CORP | 1.53% | |
| 12 | R  | RKLBROCKET LAB CORP | 1.46% | |
| 13 | V  | VSTVISTRA CORP | 1.43% | |
| 14 | C  | CORCENCORA INC | 1.42% | |
| 15 | G  | GWWWW GRAINGER INC | 1.36% | |
| 16 | M  | MCHPMICROCHIP TECHNOLOGY INC | 1.30% | |
| 17 | R  | ROKROCKWELL AUTOMATION INC | 1.23% | |
| 18 | T  | TTWOTAKE-TWO INTERACTIVE SOFTWRE | 1.23% | |
| 19 | R  | RCLROYAL CARIBBEAN CRUISES LTD | 1.21% | |
| 20 | F  | FASTFASTENAL CO | 1.21% |
Top holdings — Information Technology
Your 10 largest positions in this sector
1
D
DDOGDATADOG INC - CLASS A
2.29%2
S
SNOWSNOWFLAKE INC
2.29%3
N
NETCLOUDFLARE INC - CLASS A
2.08%4
A
ALABASTERA LABS INC
1.98%5
L
LITELUMENTUM HOLDINGS INC
1.64%6
M
MCHPMICROCHIP TECHNOLOGY INC
1.30%7
T
TTWOTAKE-TWO INTERACTIVE SOFTWRE
1.23%8
C
CRDOCREDO TECHNOLOGY GROUP HOLDI
1.20%9
A
ADSKAUTODESK INC
1.10%10
J
JBLJABIL INC
1.08%Top holdings — United States
Your 10 largest positions in this country
1
D
DDOGDATADOG INC - CLASS A
2.29%2
S
SNOWSNOWFLAKE INC
2.29%3
N
NETCLOUDFLARE INC - CLASS A
2.08%4
T
TERTERADYNE INC
2.03%5
A
ALABASTERA LABS INC
1.98%6
S
SPGSIMON PROPERTY GROUP INC
1.92%7
F
FIXCOMFORT SYSTEMS USA INC
1.85%8
H
HOODROBINHOOD MARKETS INC - A
1.71%9
L
LITELUMENTUM HOLDINGS INC
1.64%10
T
TRGPTARGA RESOURCES CORP
1.53%Geography reflects each issuer's registered business address per SEC EDGAR filings where available, falling back to the exchange or listing where no SEC filing exists — not necessarily where a company's stock is primarily listed (e.g. TSMC is classified as Taiwan even though its ADR trades on the NYSE).
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Unwrap your portfolio →Funds similar to FMDGX
Data source: official SEC Form N-PORT filings (as of 2026-06-30); expense ratio from SEC prospectus (risk/return) filings. Fund holdings are disclosed quarterly and may reflect a 60-day reporting delay.
Informational and educational only — not investment advice.
Informational and educational only — not investment advice.