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Conglomerates
Stocks Ranked by
Market Capitalization

Name Market cap Price Price
change %
MMM icon
1
3M
MMM
$91.8B
$91.8B $177.95 2.48%
HON icon
2
Honeywell
HON
$76.4B
$76.4B $241.12 2.4%
VMI icon
3
Valmont Industries
VMI
$8.86B
$8.86B $456.29 5.07%
BBUC
4
Brookfield Business Corp Class A Subordinate Voting Shares
BBUC
$6.59B
$6.59B $31.89 0.6%
GHC icon
5
Graham Holdings Company
GHC
$5.31B
$5.31B $1,233.96 1.68%
PAM icon
6
Pampa Energía
PAM
$4.57B
$4.57B $85.01 0.14%
OTTR icon
7
Otter Tail
OTTR
$3.81B
$3.81B $90.77 3.01%
DLX icon
8
Deluxe
DLX
$1.25B
$1.25B $27.20 0.11%
TTI icon
9
TETRA Technologies
TTI
$1.08B
$1.08B $7.31 0.97%
MATW icon
10
Matthews International
MATW
$887M
$887M $28.42 1.49%
CRESY
11
Cresud
CRESY
$806M
$806M $11.36 0.26%
CODI icon
12
Compass Diversified
CODI
$752M
$752M $10 3.19%
FBYD icon
13
Falcon's Beyond
FBYD
$503M
$503M $10.27 2.19%
TRC icon
14
Tejon Ranch
TRC
$460M
$460M $17.04 1.5%
FIP icon
15
FTAI Infrastructure
FIP
$447M
$447M $3.78 7.35%
BOC icon
16
Boston Omaha
BOC
$436M
$436M $14.42 0.07%
AIAI
17
AIAI Holdings
AIAI
$326M
$326M $4.63 16%
NNBR icon
18
NN Inc
NNBR
$237M
$237M $3.08 9.14%
RCMT icon
19
RCM Technologies
RCMT
$202M
$202M $28.50 1.25%
TUSK icon
20
Mammoth Energy Services
TUSK
$122M
$122M $2.54 2.31%
BOOM icon
21
DMC Global
BOOM
$111M
$111M $5.42 0.73%
STRR
22
Star Equity Holdings
STRR
$40.1M
$40.1M $10.87 0.74%
HHS icon
23
Harte-Hanks
HHS
$16.4M
$16.4M $2.21 0.45%

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 $205B.

The largest by market cap are 3M (MMM) at $91.8B, Honeywell (HON) at $76.4B and Valmont Industries (VMI) at $8.86B.

Among institutional investors, Honeywell (HON) drew the most net new fund positions in Q1 2026: 298 funds opened new positions, taking total fund holders up 111 (4.1%) quarter-over-quarter.

  • Combined market cap: $205B across 23 stocks.
  • Largest constituent: 3M (MMM), $91.8B market cap.
  • Most net new fund positions in Q1 2026: Honeywell (HON), +111 holders.

Market caps and prices updated daily; fund activity based on aggregated SEC 13F filings for Q1 2026.