Corundum Group, Inc.
•CIK: 1486083•Filing: Q4 2025
**Corundum Group, Inc.** manages $298M across a diversified portfolio of 112 positions. The fund exhibits notable concentration in the iShares Russell 1000 Growth ETF (IWF) at $36.0M and iShares Russell 1000 Value ETF (IWD) at $34.3M. Further significant allocations include MMM ($15.7M) and EFA ($14.9M), suggesting a tactical tilt across growth, value, and international exposure. This structure indicates a systematic approach to capturing broad market factor premiums.
Total AUM
$298.0M
QoQ Performance
+22.4%
Positions
111
Top 10 Concentration
54.8%
Latest Filing
Q4 2025
Top Holdings Allocation
IWF
IWD
3M C
EFA
IWF12.1%
IWD11.5%
3M5.3%
EFA5.0%
LMT4.2%
IWO3.7%
LINDE3.4%
IWN3.3%
📈 Biggest Buys
📉 Biggest Sells
SUSA
ISHARES TRUST ISHARES ESG OPTI
-18.9%
2.4% of portfolio
—
DUKE ENERGY CORPORATION HOLDIN
-59.1%
0.2% of portfolio
—
NUSHARES ETF TR SMALL CAP ETF
-20.0%
0.7% of portfolio
—
MASTERCARD INCORPORATED
-30.0%
0.3% of portfolio
—
VISA INC CL A COMMON STOCK
-16.8%
0.5% of portfolio
Sector Breakdown
Other79.1%
Technology7.3%
Industrial5.2%
Healthcare3.7%
Consumer1.9%
ETF1.0%
Financial0.9%
Materials0.4%
🚪 Exited Positionssold since Q3 2025
—
VERIZON COMMUNICATIONS
SOLD
$693.1K
—
TARGET CORP
SOLD
$605.9K
—
VAIL RESORTS INC
SOLD
$224.4K
+1 more exited positions
Changes from Q3 2025
NEW16 new positions
↑46 increased
↓42 decreased
Historical Filings
Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023