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Corundum Group Portfolio holdings

AUM $299M
1-Year Est. Return 20.66%
This Fund
S&P 500
This Quarter Est. Return
+8.02%
1 Year Est. Return
+20.66%
3 Year Est. Return
+65.83%
5 Year Est. Return
+65.99%
10 Year Est. Return
–
AUM
$243M
AUM Growth
+$17.2M
Cap. Flow
+$440K
Cap. Flow %
0.18%
Top 10 Hldgs %
53.98%
Holding
106
New
3
Increased
31
Reduced
52
Closed
3

Top Buys

Rank Stock Value
1
IWD icon
iShares Russell 1000 Value ETF
IWD
+$1.3M
2
VZ icon
Verizon
VZ
+$683K
3
IWS icon
iShares Russell Mid-Cap Value ETF
IWS
+$287K
4
TSM icon
TSMC
TSM
+$217K
5
AJG icon
Arthur J. Gallagher & Co
AJG
+$205K

Top Sells

Rank Stock Value
1
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$479K
2
SOLV icon
Solventum
SOLV
+$259K
3
TMO icon
Thermo Fisher Scientific
TMO
+$223K
4
MRVL icon
Marvell Technology
MRVL
+$216K
5
NFLX icon
Netflix
NFLX
+$201K

Sector Composition

Rank Sector Weight
1 Technology 11.26%
2 Industrials 8.52%
3 Financials 5.04%
4 Healthcare 4.49%
5 Communication Services 2.68%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AJG icon
101
Arthur J. Gallagher & Co
AJG
$63.7B
$211K 0.09%
+680
New +$205K
TMC icon
102
TMC The Metals Company
TMC
$1.59B
$66.9K 0.03%
10,500
– –
MRVL icon
103
Marvell Technology
MRVL
$174B
– –
-2,792
Closed -$216K
NFLX icon
104
Netflix
NFLX
$292B
– –
-1,500
Closed -$201K
TMO icon
105
Thermo Fisher Scientific
TMO
$211B
– –
-549
Closed -$223K
1 2 3 4
5

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KEM
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Corundum Group's Q3 2025 Portfolio in Review

As of Q3 2025, Corundum Group held 106 positions worth $243M, up 7.6% from $226M the previous quarter. Its ten largest holdings account for 54% of the portfolio.

Corundum Group's Q3 2025 filing shows 3 new, 31 increased, 52 reduced and 3 closed positions. Its largest new stake was Verizon: 15,771 shares worth $693K. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $479K.

By sector, the portfolio is most concentrated in Technology at 11% of assets, up from 11% a quarter earlier, followed by Industrials and Financials.

  • Corundum Group's largest Q3 2025 buy was Verizon: 15,771 shares worth $693K.
  • Corundum Group added most to iShares Russell 1000 Value ETF in Q3 2025, an estimated $1.3M increase.
  • Corundum Group's biggest Q3 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $479K.
  • Corundum Group fully exited Thermo Fisher Scientific in Q3 2025, selling an estimated $223K.
  • Corundum Group's ten largest holdings make up 54% of its $243M portfolio in Q3 2025.
  • Corundum Group opened 3 new positions and closed 3 in Q3 2025.
  • Corundum Group's portfolio value rose 7.6% quarter-over-quarter to $243M.

Based on Corundum Group's 13F filing for Q3 2025, filed 24 Oct 2025.