Wallace Weitz Weitz Investment Management
Wallace Weitz founded Weitz Investment Management and built a long career as a patient, research-driven value investor. The firm is known for concentrated equity portfolios, conservative balance-sheet analysis, and multi-year holding periods. Weitz’s letters and process notes are frequently recommended to investors learning classic U.S. value management.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$12.5M |
| 2 |
Accenture
ACN
|
+$9.36M |
| 3 |
Mercado Libre
MELI
|
+$8.88M |
| 4 |
CDW
CDW
|
+$6.06M |
| 5 |
Gartner
IT
|
+$5.67M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Oracle
ORCL
|
+$25.5M |
| 2 |
Perimeter Solutions
PRM
|
+$23M |
| 3 |
Visa
V
|
+$9.52M |
| 4 |
Mastercard
MA
|
+$5.27M |
| 5 |
Meta Platforms (Facebook)
META
|
+$5.21M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Financials | 21.97% |
| 2 | Technology | 16.78% |
| 3 | Communication Services | 16.67% |
| 4 | Healthcare | 16.2% |
| 5 | Industrials | 13.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1
Berkshire Hathaway Class B
BRK.B
$1.06T
| $144M | 7.83% |
286,850
| – | – |
|
2
Alphabet (Google) Class C
GOOG
$4.18T
| $107M | 5.82% |
440,600
-5,000
| -1% | -$1.05M |
|
3
Danaher
DHR
$154B
| $104M | 5.67% |
526,950
| – | – |
|
|
4
Visa
V
$693B
| $92.4M | 5.01% |
270,580
-27,495
| -9% | -$9.52M |
|
|
5
Mastercard
MA
$509B
| $88.7M | 4.81% |
155,900
-9,170
| -6% | -$5.27M |
|
|
6
Meta Platforms (Facebook)
META
$1.4T
| $79.8M | 4.33% |
108,710
-7,000
| -6% | -$5.21M |
|
|
7
Microsoft
MSFT
$3.59T
| $79.8M | 4.33% |
153,975
+24,500
| +19% | +$12.5M |
|
8
Aon
AON
$75.3B
| $76.1M | 4.13% |
213,450
| – | – |
|
9
Thermo Fisher Scientific
TMO
$233B
| $73M | 3.96% |
150,450
| – | – |
|
10
IDEX
IEX
$17.3B
| $66.2M | 3.59% |
406,475
+250
| +0.1% | +$42.2K |
|
11
Vulcan Materials
VMC
$35.8B
| $65.4M | 3.55% |
212,700
+800
| +0.4% | +$227K |
|
12
CoStar Group
CSGP
$13.1B
| $60.7M | 3.3% |
719,850
-45,750
| -6% | -$4.04M |
|
13
Equifax
EFX
$22.6B
| $55.1M | 2.99% |
214,600
+4,250
| +2% | +$1.07M |
|
14
Amazon
AMZN
$2.79T
| $48.9M | 2.65% |
222,500
| – | – |
|
15
Global Payments
GPN
$24.7B
| $45.7M | 2.48% |
550,000
-10,000
| -2% | -$842K |
|
16
Bio-Techne
TECH
$11.3B
| $44.6M | 2.42% |
802,150
| – | – |
|
17
HEICO Corp Class A
HEI.A
$36.5B
| $41.4M | 2.24% |
162,779
-121
| -0.1% | -$30.2K |
|
18
Labcorp
LH
$27.3B
| $40.1M | 2.18% |
139,750
-1,425
| -1% | -$382K |
|
|
19
Accenture
ACN
$113B
| $39.6M | 2.15% |
160,550
+35,900
| +29% | +$9.36M |
|
20
Idexx Laboratories
IDXX
$43.9B
| $36.3M | 1.97% |
56,800
-3,500
| -6% | -$2.12M |
|
21
Analog Devices
ADI
$182B
| $34.2M | 1.86% |
139,300
-1,700
| -1% | -$409K |
|
22
SiriusXM
SIRI
$9.67B
| $32.2M | 1.75% |
1,384,000
| – | – |
|
|
LBRDK
23
DELISTED
Liberty Broadband Class C
LBRDK
| $31.8M | 1.73% |
500,500
| – | – |
|
24
Texas Instruments
TXN
$241B
| $30.2M | 1.64% |
164,575
| – | – |
|
25
Old Dominion Freight Line
ODFL
$42.8B
| $29.4M | 1.59% |
208,500
| – | – |
|
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Wallace Weitz's Q3 2025 Portfolio in Review
As of Q3 2025, Wallace Weitz held 49 positions worth $1.84B, down 0.91% from $1.86B the previous quarter. Its ten largest holdings account for 49% of the portfolio.
Wallace Weitz's Q3 2025 filing shows 4 new, 10 increased, 12 reduced and 1 closed positions. Its largest new stake was Mercado Libre: 3,700 shares worth $8.65M. The largest sale was Oracle, an estimated $25.5M.
By sector, the portfolio is most concentrated in Financials at 22% of assets, down from 22% a quarter earlier, followed by Technology and Communication Services.
- Wallace Weitz's largest Q3 2025 buy was Mercado Libre: 3,700 shares worth $8.65M.
- Wallace Weitz added most to Microsoft in Q3 2025, an estimated $12.5M increase.
- Wallace Weitz's biggest Q3 2025 reduction was Oracle, cutting an estimated $25.5M.
- Wallace Weitz fully exited Ralliant Corp in Q3 2025, selling an estimated $735K.
- Wallace Weitz's ten largest holdings make up 49% of its $1.84B portfolio in Q3 2025.
- Wallace Weitz opened 4 new positions and closed 1 in Q3 2025.
- Wallace Weitz's portfolio value fell 0.91% quarter-over-quarter to $1.84B.
Based on Weitz Investment Management's 13F filing for Q3 2025, filed 10 Nov 2025.