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Conglomerates
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
MMM icon
1
3M
MMM
$89.1B
$89.1B $172.80 0.71%
HON icon
2
Honeywell
HON
$69.5B
$69.5B $219.26 0.21%
VMI icon
3
Valmont Industries
VMI
$8.32B
$8.32B $434.60 0.54%
BBUC icon
4
Brookfield Business Corp Class A Subordinate Voting Shares
BBUC
$5.76B
$5.76B $28.02 0.68%
GHC icon
5
Graham Holdings Company
GHC
$4.96B
$4.96B $1,170.09 1.4%
PAM icon
6
Pampa Energía
PAM
$4.05B
$4.05B $75.47 0.11%
OTTR icon
7
Otter Tail
OTTR
$3.76B
$3.76B $89.64 0.92%
DLX icon
8
Deluxe
DLX
$1.05B
$1.05B $22.92 0.3%
CODI icon
9
Compass Diversified
CODI
$810M
$810M $10.77 0.09%
CRESY icon
10
Cresud
CRESY
$770M
$770M $10.85 1%
MATW icon
11
Matthews International
MATW
$594M
$594M $19.02 0.21%
TRC icon
12
Tejon Ranch
TRC
$448M
$448M $16.59 1.47%
BOC icon
13
Boston Omaha
BOC
$384M
$384M $12.76 0.55%
FBYD icon
14
Falcon's Beyond
FBYD
$373M
$373M $7.70 0.26%
NNBR icon
15
NN Inc
NNBR
$356M
$356M $3.80 8.26%
FIP icon
16
FTAI Infrastructure
FIP
$332M
$332M $2.81 5.24%
RCMT icon
17
RCM Technologies
RCMT
$257M
$257M $36.15 1.77%
BOOM icon
18
DMC Global
BOOM
$159M
$159M $7.73 44.5%
TUSK icon
19
Mammoth Energy Services
TUSK
$136M
$136M $2.82 0.35%
AIAI icon
20
AIAI Holdings
AIAI
$94.2M
$94.2M $1.33 21.8%
AIRT icon
21
Air T
AIRT
$72.8M
$72.8M $26.98 4.49%
HHS icon
22
Harte-Hanks
HHS
$29.8M
$29.8M $4 1.01%
GNTA icon
23
Genenta Science
GNTA
$29.2M
$29.2M $0.6050 2.14%
NXAT
24
Nexus Advanced Technologies Inc. Ordinary Shares
NXAT
$1.27M
$1.27M $0.3911 8.49%

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 24 Conglomerates industry stocks tracked by Wall St. Rank, worth a combined $191B.

The largest by market cap are 3M (MMM) at $89.1B, Honeywell (HON) at $69.5B and Valmont Industries (VMI) at $8.32B.

Among institutional investors, 3M (MMM) drew the most net new fund positions in Q2 2026: 199 funds opened new positions, taking total fund holders up 75 (3.4%) quarter-over-quarter.

  • Combined market cap: $191B across 24 stocks.
  • Largest constituent: 3M (MMM), $89.1B market cap.
  • Most net new fund positions in Q2 2026: 3M (MMM), +75 holders.

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