We are live on ! Find out more

Conglomerates
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
MMM icon
1
3M
MMM
$85.1B
$85.1B $164.97 1.3%
HON icon
2
Honeywell
HON
$64.1B
$64.1B $202.36 0.09%
VMI icon
3
Valmont Industries
VMI
$9.33B
$9.33B $483.44 1.34%
BBUC
4
Brookfield Business Corp Class A Subordinate Voting Shares
BBUC
$5.43B
$5.43B $26.41 0.11%
GHC icon
5
Graham Holdings Company
GHC
$4.82B
$4.82B $1,138.57 0.16%
PAM icon
6
Pampa Energía
PAM
$4.64B
$4.64B $86.53 2.17%
OTTR icon
7
Otter Tail
OTTR
$3.7B
$3.7B $88.06 0.15%
DLX icon
8
Deluxe
DLX
$1.08B
$1.08B $23.62 0.08%
CRESY
9
Cresud
CRESY
$861M
$861M $12.14 3.73%
CODI icon
10
Compass Diversified
CODI
$828M
$828M $11.01 0.46%
MATW icon
11
Matthews International
MATW
$624M
$624M $20 0.2%
TRC icon
12
Tejon Ranch
TRC
$438M
$438M $16.21 0.56%
BOC icon
13
Boston Omaha
BOC
$409M
$409M $13.57 0.44%
FIP icon
14
FTAI Infrastructure
FIP
$391M
$391M $3.31 0.3%
FBYD icon
15
Falcon's Beyond
FBYD
$300M
$300M $6.19 6.78%
NNBR icon
16
NN Inc
NNBR
$296M
$296M $3.58 0.56%
RCMT icon
17
RCM Technologies
RCMT
$285M
$285M $40.11 2.53%
AIAI
18
AIAI Holdings
AIAI
$237M
$237M $3.36 2.75%
TUSK icon
19
Mammoth Energy Services
TUSK
$149M
$149M $3.10 0.32%
BOOM icon
20
DMC Global
BOOM
$131M
$131M $6.36 3.2%
AIRT icon
21
Air T
AIRT
$82.8M
$82.8M $30.69 5.1%
GNTA
22
Genenta Science
GNTA
$40.5M
$40.5M $0.8408 2.38%
HHS icon
23
Harte-Hanks
HHS
$31.3M
$31.3M $4.20 1.87%

Conglomerates Stocks at a Glance

Conglomerates operate several unrelated business lines with no dominant revenue source. The case turns on capital allocation — management's record of buying, fixing, and exiting businesses — and whether a holding discount persists against the sum of the parts.

There are 23 Conglomerates industry stocks tracked by Wall St. Rank, worth a combined $183B.

The largest by market cap are 3M (MMM) at $85.1B, Honeywell (HON) at $64.1B and Valmont Industries (VMI) at $9.33B.

Among institutional investors, 3M (MMM) drew the most net new fund positions in Q2 2026: 194 funds opened new positions, taking total fund holders up 67 (3.1%) quarter-over-quarter.

  • Combined market cap: $183B across 23 stocks.
  • Largest constituent: 3M (MMM), $85.1B market cap.
  • Most net new fund positions in Q2 2026: 3M (MMM), +67 holders.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q2 2026.