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Port Capital Portfolio holdings

AUM $2.25B
1-Year Est. Return 13.28%
This Fund
S&P 500
This Quarter Est. Return
+3.29%
1 Year Est. Return
+13.28%
3 Year Est. Return
+65.31%
5 Year Est. Return
+99.15%
10 Year Est. Return
–
AUM
$2.4B
AUM Growth
+$47.8M
Cap. Flow
+$3.09M
Cap. Flow %
0.13%
Top 10 Hldgs %
48.08%
Holding
89
New
4
Increased
32
Reduced
27
Closed
5

Top Buys

Rank Stock Value
1
SPGI icon
S&P Global
SPGI
+$25.7M
2
ORI icon
Old Republic International
ORI
+$18.7M
3
ATMU icon
Atmus Filtration Technologies
ATMU
+$18.1M
4
HEI.A icon
HEICO Corp Class A
HEI.A
+$1.3M
5
RBC icon
RBC Bearings
RBC
+$1.28M

Top Sells

Rank Stock Value
1
ONTO icon
Onto Innovation
ONTO
+$15.8M
2
SIGI icon
Selective Insurance
SIGI
+$13.5M
3
IEX icon
IDEX
IEX
+$12.1M
4
APH icon
Amphenol
APH
+$10.2M
5
ROP icon
Roper Technologies
ROP
+$5.53M

Sector Composition

Rank Sector Weight
1 Industrials 37.77%
2 Financials 25.34%
3 Technology 18.32%
4 Materials 7.86%
5 Consumer Discretionary 7.34%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
IBM icon
51
IBM
IBM
$211B
$971K 0.04%
3,441
– –
TXN icon
52
Texas Instruments
TXN
$252B
$962K 0.04%
5,234
– –
JNJ icon
53
Johnson & Johnson
JNJ
$618B
$942K 0.04%
5,079
– –
ARCC icon
54
Ares Capital
ARCC
$13.5B
$878K 0.04%
43,000
– –
TEL icon
55
TE Connectivity
TEL
$59.6B
$858K 0.04%
3,910
-69
-2% -$13.8K
BRK.B icon
56
Berkshire Hathaway Class B
BRK.B
$1.1T
$822K 0.03%
1,636
+107
+7% +$51.8K
ABT icon
57
Abbott
ABT
$183B
$790K 0.03%
5,900
– –
SPDW icon
58
State Street SPDR Portfolio Developed World ex-US ETF
SPDW
$40.2B
$770K 0.03%
18,000
– –
MAR icon
59
Marriott International
MAR
$98.3B
$757K 0.03%
2,907
– –
PBR.A icon
60
Petrobras Class A
PBR.A
$111B
$738K 0.03%
62,467
– –
MRK icon
61
Merck
MRK
$322B
$650K 0.03%
7,745
– –
IWS icon
62
iShares Russell Mid-Cap Value ETF
IWS
$15.6B
$644K 0.03%
4,609
+13
+0.3% +$1.78K
MCD icon
63
McDonald's
MCD
$192B
$620K 0.03%
2,039
+25
+1% +$7.61K
VT icon
64
Vanguard Total World Stock ETF
VT
$77.1B
$595K 0.02%
4,316
– –
RYAN icon
65
Ryan Specialty Holdings
RYAN
$5.72B
$564K 0.02%
10,000
– –
TMO icon
66
Thermo Fisher Scientific
TMO
$213B
$550K 0.02%
1,134
-17
-1% -$7.91K
EPD icon
67
Enterprise Products Partners
EPD
$82.3B
$477K 0.02%
15,250
– –
EL icon
68
Estee Lauder
EL
$30.4B
$472K 0.02%
5,351
-227
-4% -$20.2K
ITW icon
69
Illinois Tool Works
ITW
$82.6B
$411K 0.02%
1,578
– –
BX icon
70
Blackstone
BX
$102B
$405K 0.02%
2,370
-60
-2% -$10.3K
UL icon
71
Unilever
UL
$137B
$385K 0.02%
5,778
– –
COP icon
72
ConocoPhillips
COP
$147B
$376K 0.02%
3,977
-275
-6% -$26K
COST icon
73
Costco
COST
$422B
$348K 0.01%
376
-12
-3% -$11.5K
PSX icon
74
Phillips 66
PSX
$84.9B
$342K 0.01%
2,518
– –
META icon
75
Meta Platforms (Facebook)
META
$1.42T
$320K 0.01%
436
-22
-5% -$16.4K
1 2
3
4

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Port Capital's Q3 2025 Portfolio in Review

As of Q3 2025, Port Capital held 89 positions worth $2.4B, up 2% from $2.35B the previous quarter. Its ten largest holdings account for 48% of the portfolio.

Port Capital's Q3 2025 filing shows 4 new, 32 increased, 27 reduced and 5 closed positions. Its largest new stake was S&P Global: 47,910 shares worth $23.3M. The largest sale was Onto Innovation, an estimated $15.8M.

By sector, the portfolio is most concentrated in Industrials at 38% of assets, down from 39% a quarter earlier, followed by Financials and Technology.

  • Port Capital's largest Q3 2025 buy was S&P Global: 47,910 shares worth $23.3M.
  • Port Capital added most to HEICO Corp Class A in Q3 2025, an estimated $1.3M increase.
  • Port Capital's biggest Q3 2025 reduction was IDEX, cutting an estimated $12.1M.
  • Port Capital fully exited Onto Innovation in Q3 2025, selling an estimated $15.8M.
  • Port Capital's ten largest holdings make up 48% of its $2.4B portfolio in Q3 2025.
  • Port Capital opened 4 new positions and closed 5 in Q3 2025.
  • Port Capital's portfolio value rose 2% quarter-over-quarter to $2.4B.

Based on Port Capital's 13F filing for Q3 2025, filed 14 Nov 2025.