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MCM

Mattern Capital Management Portfolio holdings

AUM $857M
1-Year Est. Return 4.87%
This Fund
S&P 500
This Quarter Est. Return
+4.29%
1 Year Est. Return
+4.87%
3 Year Est. Return
+31.49%
5 Year Est. Return
+42.28%
10 Year Est. Return
–
AUM
$857M
AUM Growth
+$21.9M
Cap. Flow
+$7M
Cap. Flow %
0.82%
Top 10 Hldgs %
17.02%
Holding
173
New
3
Increased
92
Reduced
44
Closed
7

Top Buys

Rank Stock Value
1
JPM icon
JPMorgan Chase
JPM
+$8.23M
2
TSCO icon
Tractor Supply
TSCO
+$3M
3
ZTS icon
Zoetis
ZTS
+$2.8M
4
NKE icon
Nike
NKE
+$2.56M
5
BDX icon
Becton Dickinson
BDX
+$2.1M

Top Sells

Rank Stock Value
1
PSX icon
Phillips 66
PSX
+$8.9M
2
PPG icon
PPG Industries
PPG
+$7.89M
3
CBSH icon
Commerce Bancshares
CBSH
+$6.72M
4
MKC icon
McCormick & Company Non-Voting
MKC
+$6.24M
5
FRT icon
Federal Realty Investment Trust
FRT
+$4.51M

Sector Composition

Rank Sector Weight
1 Technology 21.32%
2 Financials 14.51%
3 Healthcare 12.76%
4 Industrials 12.12%
5 Utilities 8.75%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
VTI icon
101
Vanguard Morningstar Total Stock Market ETF
VTI
$690B
$1.55M 0.18%
4,179
-203
-5% -$72.6K
AXP icon
102
American Express
AXP
$223B
$1.52M 0.18%
4,491
+669
+18% +$214K
WSO icon
103
Watsco Inc
WSO
$13B
$1.5M 0.17%
3,594
-20
-0.6% -$8.04K
CVX icon
104
Chevron
CVX
$415B
$1.47M 0.17%
8,871
-1,777
-17% -$331K
AVUV icon
105
Avantis US Small Cap Value ETF
AVUV
$31.6B
$1.46M 0.17%
11,671
+3,501
+43% +$418K
MCO icon
106
Moody's
MCO
$87.3B
$1.43M 0.17%
3,166
+605
+24% +$272K
META icon
107
Meta Platforms (Facebook)
META
$1.56T
$1.42M 0.17%
2,526
+215
+9% +$131K
VEA icon
108
Vanguard FTSE Developed Markets ETF
VEA
$239B
$1.35M 0.16%
18,878
– –
DECK icon
109
Deckers Outdoor
DECK
$11.5B
$1.31M 0.15%
13,197
+448
+4% +$47.2K
DFIV icon
110
Dimensional International Value ETF
DFIV
$22.5B
$1.3M 0.15%
24,079
+8,770
+57% +$482K
ULTA icon
111
Ulta Beauty
ULTA
$23.8B
$1.26M 0.15%
2,801
+354
+14% +$180K
O icon
112
Realty Income
O
$58.4B
$1.24M 0.14%
20,005
-71,831
-78% -$4.48M
DFAT icon
113
Dimensional US Targeted Value ETF
DFAT
$14.6B
$1.21M 0.14%
17,319
+4,773
+38% +$319K
IT icon
114
Gartner
IT
$12.3B
$1.16M 0.13%
8,917
+171
+2% +$25.8K
JTEK icon
115
JPMorgan US Tech Leaders ETF
JTEK
$4.49B
$1.14M 0.13%
10,242
+3,074
+43% +$305K
MRSH
116
Marsh
MRSH
$89.9B
$1.07M 0.13%
6,427
+935
+17% +$156K
ORLY icon
117
O'Reilly Automotive
ORLY
$70.7B
$1.06M 0.12%
11,510
+2,849
+33% +$260K
DFEV icon
118
Dimensional Emerging Markets Value ETF
DFEV
$2.17B
$974K 0.11%
22,817
+8,040
+54% +$329K
QUAL icon
119
iShares MSCI USA Quality Factor ETF
QUAL
$47.7B
$963K 0.11%
4,388
-247
-5% -$51.8K
QCOM icon
120
Qualcomm
QCOM
$180B
$960K 0.11%
5,195
+7
+0.1% +$1.31K
TSLA icon
121
Tesla
TSLA
$1.49T
$938K 0.11%
2,231
+2
+0.1% +$795
DLTR icon
122
Dollar Tree
DLTR
$24.6B
$932K 0.11%
7,707
+854
+12% +$88.8K
DG icon
123
Dollar General
DG
$29B
$812K 0.09%
7,056
+1,340
+23% +$152K
CSGP icon
124
CoStar Group
CSGP
$12.8B
$806K 0.09%
28,450
+8,705
+44% +$299K
IVV icon
125
iShares Core S&P 500 ETF
IVV
$892B
$771K 0.09%
1,030
– –
3 4
5
6 7

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PFA
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AIMC
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SFO
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QIM
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Mattern Capital Management's Q2 2026 Portfolio in Review

As of Q2 2026, Mattern Capital Management held 173 positions worth $857M, up 2.6% from $835M the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Mattern Capital Management's Q2 2026 filing shows 3 new, 92 increased, 44 reduced and 7 closed positions. Its largest new stake was Advanced Micro Devices: 491 shares worth $285K. The largest sale was Phillips 66, an estimated $8.9M.

By sector, the portfolio is most concentrated in Technology at 21% of assets, up from 20% a quarter earlier, followed by Financials and Healthcare.

  • Mattern Capital Management's largest Q2 2026 buy was Advanced Micro Devices: 491 shares worth $285K.
  • Mattern Capital Management added most to JPMorgan Chase in Q2 2026, an estimated $8.23M increase.
  • Mattern Capital Management's biggest Q2 2026 reduction was Phillips 66, cutting an estimated $8.9M.
  • Mattern Capital Management fully exited McCormick & Company Non-Voting in Q2 2026, selling an estimated $6.24M.
  • Mattern Capital Management's ten largest holdings make up 17% of its $857M portfolio in Q2 2026.
  • Mattern Capital Management opened 3 new positions and closed 7 in Q2 2026.
  • Mattern Capital Management's portfolio value rose 2.6% quarter-over-quarter to $857M.

Based on Mattern Capital Management's 13F filing for Q2 2026, filed 24 Jul 2026.