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MCM

Mattern Capital Management Portfolio holdings

AUM $835M
1-Year Est. Return 3.68%
This Fund
S&P 500
This Quarter Est. Return
+3.11%
1 Year Est. Return
+3.68%
3 Year Est. Return
+30.74%
5 Year Est. Return
+44.06%
10 Year Est. Return
–
AUM
$832M
AUM Growth
+$47M
Cap. Flow
+$35M
Cap. Flow %
4.2%
Top 10 Hldgs %
16.64%
Holding
170
New
7
Increased
136
Reduced
11
Closed
–

Top Buys

Rank Stock Value
1
JBND icon
JPMorgan Active Bond ETF
JBND
+$5.52M
2
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$2.61M
3
ROP icon
Roper Technologies
ROP
+$1.39M
4
APH icon
Amphenol
APH
+$1.13M
5
QQQ icon
Invesco QQQ Trust
QQQ
+$1.03M

Top Sells

Rank Stock Value
1
UPS icon
United Parcel Service
UPS
+$451K
2
DFAT icon
Dimensional US Targeted Value ETF
DFAT
+$255K
3
COR icon
Cencora
COR
+$171K
4
QUAL icon
iShares MSCI USA Quality Factor ETF
QUAL
+$140K
5
VLUE icon
iShares MSCI USA Value Factor ETF
VLUE
+$56.4K

Sector Composition

Rank Sector Weight
1 Technology 17.7%
2 Financials 14.24%
3 Industrials 13.46%
4 Consumer Staples 11.05%
5 Healthcare 10.81%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MSFT icon
1
Microsoft
MSFT
$2.93T
$18.9M 2.28%
38,076
+644
+2% +$280K
AAPL icon
2
Apple
AAPL
$4.9T
$16.6M 1.99%
80,752
+3,068
+4% +$620K
WMT icon
3
Walmart Inc
WMT
$909B
$14.1M 1.7%
144,378
+3,172
+2% +$302K
COR icon
4
Cencora
COR
$59.9B
$14.1M 1.69%
46,977
-593
-1% -$171K
COST icon
5
Costco
COST
$417B
$14M 1.68%
14,118
+35
+0.2% +$34.8K
BRO icon
6
Brown & Brown
BRO
$23.5B
$13.2M 1.59%
119,198
+636
+0.5% +$71.5K
GWW icon
7
W.W. Grainger
GWW
$65.9B
$12.3M 1.48%
11,812
+64
+0.5% +$66.5K
AVGO icon
8
Broadcom
AVGO
$1.76T
$12.2M 1.46%
44,109
+1,867
+4% +$405K
LOW icon
9
Lowe's Companies
LOW
$117B
$11.8M 1.42%
53,392
+605
+1% +$135K
CSCO icon
10
Cisco
CSCO
$441B
$11.3M 1.36%
162,846
+395
+0.2% +$24.3K
PSX icon
11
Phillips 66
PSX
$82.9B
$11.2M 1.35%
94,198
+2,012
+2% +$225K
ADI icon
12
Analog Devices
ADI
$183B
$11.2M 1.34%
46,940
+913
+2% +$190K
SPGI icon
13
S&P Global
SPGI
$133B
$11.2M 1.34%
21,166
+258
+1% +$129K
LIN icon
14
Linde
LIN
$237B
$11.1M 1.33%
23,624
+121
+0.5% +$55.2K
AFL icon
15
Aflac
AFL
$63.5B
$11.1M 1.33%
105,059
+1,571
+2% +$165K
EMR icon
16
Emerson Electric
EMR
$78.2B
$10.6M 1.28%
79,821
+533
+0.7% +$61.1K
ADP icon
17
Automatic Data Processing
ADP
$102B
$10.6M 1.27%
34,325
+108
+0.3% +$33.2K
BLK icon
18
Blackrock
BLK
$166B
$10.6M 1.27%
10,080
+62
+0.6% +$58.6K
CB icon
19
Chubb
CB
$137B
$10.5M 1.26%
36,333
-49
-0.1% -$14.1K
GD icon
20
General Dynamics
GD
$99.7B
$10.4M 1.25%
35,597
+190
+0.5% +$52.3K
XYL icon
21
Xylem
XYL
$29.2B
$10.3M 1.24%
79,783
+1,006
+1% +$122K
TSCO icon
22
Tractor Supply
TSCO
$16B
$10.3M 1.24%
195,025
+1,985
+1% +$102K
SYK icon
23
Stryker
SYK
$123B
$10.3M 1.23%
25,964
+260
+1% +$97.3K
BR icon
24
Broadridge
BR
$17.3B
$10.3M 1.23%
42,259
+106
+0.3% +$25.2K
LHX icon
25
L3Harris
LHX
$52.5B
$10.1M 1.21%
40,302
+330
+0.8% +$75.8K
1
2 3 4 5

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Mattern Capital Management's Q2 2025 Portfolio in Review

As of Q2 2025, Mattern Capital Management held 170 positions worth $832M, up 6% from $785M the previous quarter. Its ten largest holdings account for 17% of the portfolio.

Mattern Capital Management deployed $35M of net new capital in Q2 2025, opening 7 new positions and adding to 136 existing holdings. Its largest new stake was JPMorgan Active Bond ETF: 104,228 shares worth $5.59M.

By sector, the portfolio is most concentrated in Technology at 18% of assets, up from 16% a quarter earlier, followed by Financials and Industrials.

On the sell side, the largest reduction was United Parcel Service, an estimated $451K trimmed.

  • Mattern Capital Management's largest Q2 2025 buy was JPMorgan Active Bond ETF: 104,228 shares worth $5.59M.
  • Mattern Capital Management added most to Roper Technologies in Q2 2025, an estimated $1.39M increase.
  • Mattern Capital Management's biggest Q2 2025 reduction was United Parcel Service, cutting an estimated $451K.
  • Mattern Capital Management's ten largest holdings make up 17% of its $832M portfolio in Q2 2025.
  • Mattern Capital Management opened 7 new positions and closed 0 in Q2 2025.
  • Mattern Capital Management's portfolio value rose 6% quarter-over-quarter to $832M.

Based on Mattern Capital Management's 13F filing for Q2 2025, filed 21 Jul 2025.