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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
+3.11%
1 Year Est. Return
+4.87%
3 Year Est. Return
+31.49%
5 Year Est. Return
+42.28%
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
AVIG icon
76
Avantis Core Fixed Income ETF
AVIG
$1.94B
$5.9M 0.71%
141,794
+21,554
+18% +$883K
LLY icon
77
Eli Lilly
LLY
$1.08T
$5.64M 0.68%
7,240
+728
+11% +$566K
JBND icon
78
JPMorgan Active Bond ETF
JBND
$8.44B
$5.59M 0.67%
+104,228
New +$5.52M
ROP icon
79
Roper Technologies
ROP
$40.4B
$5.56M 0.67%
9,801
+2,453
+33% +$1.39M
MA icon
80
Mastercard
MA
$498B
$5.2M 0.63%
9,259
+1,716
+23% +$949K
BF.B icon
81
Brown-Forman Class B
BF.B
$13.5B
$5.08M 0.61%
188,788
+8,508
+5% +$273K
QQQ icon
82
Invesco QQQ Trust
QQQ
$436B
$3.96M 0.48%
7,177
+2,070
+41% +$1.03M
AMZN icon
83
Amazon
AMZN
$2.44T
$3.05M 0.37%
13,883
+2,536
+22% +$502K
DIA icon
84
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$45B
$2.77M 0.33%
+6,297
New +$2.61M
GOOG icon
85
Alphabet (Google) Class C
GOOG
$4.11T
$1.97M 0.24%
11,093
+5,143
+86% +$850K
IWD icon
86
iShares Russell 1000 Value ETF
IWD
$81.4B
$1.94M 0.23%
10,013
+1,142
+13% +$212K
VTEB icon
87
Vanguard Tax-Exempt Bond Index Fund
VTEB
$45.2B
$1.92M 0.23%
39,250
+2,369
+6% +$116K
DECK icon
88
Deckers Outdoor
DECK
$14.1B
$1.67M 0.2%
16,177
+374
+2% +$41.4K
NFLX icon
89
Netflix
NFLX
$307B
$1.64M 0.2%
12,280
+920
+8% +$104K
SPY icon
90
State Street SPDR S&P 500 ETF Trust
SPY
$771B
$1.58M 0.19%
2,565
+1,005
+64% +$574K
TSLA icon
91
Tesla
TSLA
$1.18T
$1.58M 0.19%
4,969
+655
+15% +$197K
AVLV icon
92
Avantis US Large Cap Value ETF
AVLV
$17.8B
$1.38M 0.17%
20,298
+697
+4% +$44.9K
SHY icon
93
iShares 1-3 Year Treasury Bond ETF
SHY
$25.4B
$1.35M 0.16%
16,345
+5,209
+47% +$430K
IWF icon
94
iShares Russell 1000 Growth ETF
IWF
$117B
$1.34M 0.16%
12,640
+2,700
+27% +$258K
VTI icon
95
Vanguard Total Stock Market ETF
VTI
$646B
$1.33M 0.16%
4,382
– –
TSM icon
96
TSMC
TSM
$1.94T
$1.33M 0.16%
5,866
+962
+20% +$178K
VNLA icon
97
Janus Henderson Short Duration Income ETF
VNLA
$3.34B
$1.33M 0.16%
26,989
+6,875
+34% +$337K
DLTR icon
98
Dollar Tree
DLTR
$24.8B
$1.3M 0.16%
13,132
+1,045
+9% +$90.2K
JPM icon
99
JPMorgan Chase
JPM
$916B
$1.3M 0.16%
4,469
+1,076
+32% +$275K
META icon
100
Meta Platforms (Facebook)
META
$1.49T
$1.29M 0.16%
1,751
+216
+14% +$133K
2 3
4
5 6

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NOCM
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OAM
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ACP
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BCM
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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.