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Corundum Group, Inc. — 13F Holdings & Portfolio

CIK 1486083 · latest 13F-HR filed 2026-08-07

Backtest portfolio

Corundum Group, Inc. manages $337.1M in 13F-reported U.S. long-equity assets across 112 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are IWF (12.59%), IWD (12.02%), EFA (5.08%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 12 new positions, exited 8, added to 61, and trimmed 15.

AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.

Filer Information
Address
1 S. NEVADA AVE
STE. 200
COLORADO SPRINGS, CO 80903
Phone
(719) 228-1080
Filing Manager
Corundum Group, Inc.
COLORADO SPRINGS, CO
Signatory
Justin A. Leveille
Vice President of Operations
Loading holdings…
AUM

$337.1M

Long-equity book

Holdings

112

Distinct positions

Period

2026-06-30

Filed 2026-08-07

Q/Q Activity

+12 / −8 / ↑61 / ↓15

vs 2026-03-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • ISHARES RUSSELL 1000 GROWTH ET$6.0M +16.5%
  • ISHARES RUSSELL 1000 VALUE ETF$5.1M +14.5%
  • INTEL CORP$2.9M +217.3%
  • ISHARES RUSSELL 2000 GROWTH ET$2.6M +23.4%
  • 3M COMPANY$1.7M +11.7%
Show all 61 →

Top Trims

  • LOCKHEED MARTIN CORP-$1.8M -15.7%
  • LINDE PLC ORDINARY SHARES-$644.2K -8.2%
  • SPDR GOLD SHARES ETF-$577.7K -14.3%
  • ISHARES CORE S&P SMALL CAP ETF-$490.5K -53.8%
  • CHEVRON CORPORATION-$200.2K -17.1%
Show all 15 →

New Positions

  • EXXONMOBIL HOLDINGS CORPORATIO$2.6M
  • BOEING CO$997.9K
  • META PLATFORMS INC CLASS A COM$982.9K
  • HONEYWELL AEROSPACE INC COMMON$496.8K
  • HONEYWELL INTERNATIONAL INC CO$442.4K
Show all 12 →

Exited Positions

  • EXXON MOBIL CORP$3.2M
  • HONEYWELL INTL INC$841.5K
  • TRACTOR SUPPLY CO$359.0K
  • ISHARES TRUST ISHARES 0 3 MONT$242.2K
  • KKR & CO INC COMMON STOCK$222.9K
Show all 8 →
All Holdings

Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).

# Issuer Symbol CUSIP Value Weight Shares Type
1 ISHARES RUSSELL 1000 GROWTH ET IWF 464287614 $42.4M 12.59% 341,716 SH
2 ISHARES RUSSELL 1000 VALUE ETF IWD 464287598 $40.5M 12.02% 167,207 SH
3 ISHARES MSCI EAFE ETF EFA 464287465 $17.1M 5.08% 164,969 SH
4 3M COMPANY MMM 88579Y101 $16.1M 4.77% 99,383 SH
5 ISHARES RUSSELL 2000 GROWTH ET IWO 464287648 $13.7M 4.06% 34,722 SH
6 ISHARES RUSSELL 2000 VALUE ETF IWN 464287630 $11.7M 3.48% 53,073 SH
7 ISHARES RUSSELL MID CAP GROWTH IWP 464287481 $11.2M 3.31% 76,317 SH
8 ISHARES RUSSELL MID CAP VALUE IWS 464287473 $10.2M 3.02% 61,801 SH
9 LOCKHEED MARTIN CORP LMT 539830109 $9.7M 2.88% 19,045 SH
10 STATE STREET SPDR S&P 500 ETF SPY 78462F103 $9.4M 2.78% 12,537 SH
11 ISHARES TRUST ISHARES ESG OPTI SUSA 464288802 $7.4M 2.19% 47,936 SH
12 LINDE PLC ORDINARY SHARES LIN G54950103 $7.2M 2.14% 13,913 SH
13 APPLE INC AAPL 037833100 $7.1M 2.10% 24,451 SH
14 VANGUARD RUSSELL 1000 VALUE ET VONV 92206C714 $5.1M 1.51% 47,826 SH
15 MICROSOFT CORP MSFT 594918104 $4.7M 1.38% 12,510 SH
16 ISHARES RUSSELL 1000 ETF IWB 464287622 $4.5M 1.33% 10,981 SH
17 ISHARES RUSSELL 2000 ETF IWM 464287655 $4.2M 1.25% 14,006 SH
18 INTEL CORP INTC 458140100 $4.2M 1.24% 29,853 SH
19 CATERPILLAR INC CAT 149123101 $3.6M 1.05% 3,337 SH
20 INVESCO EXCHANGE TRADED FD TR SPLV 46138E354 $3.5M 1.05% 47,322 SH
21 NVIDIA CORP NVDA 67066G104 $3.5M 1.04% 17,476 SH
22 ALPHABET INC CLASS A COMMON ST GOOGL 02079K305 $3.5M 1.03% 9,763 SH
23 SPDR GOLD SHARES ETF GLD 78463V107 $3.5M 1.03% 9,401 SH
24 ALPHABET INC CLASS C CAPITAL S GOOG 02079K107 $3.4M 1.00% 9,510 SH
25 SPDR SERIES TRUST STATE STREET SPYM 78464A854 $3.3M 0.97% 37,204 SH
26 JPMORGAN CHASE & CO JPM 46625H100 $3.2M 0.95% 9,835 SH
27 VANGUARD S&P 500 ETF VOO 922908363 $2.9M 0.85% 4,152 SH
28 ISHARES S&P 500 GROWTH ETF IVW 464287309 $2.8M 0.83% 20,435 SH
29 EXXONMOBIL HOLDINGS CORPORATIO XOM 30233Q108 $2.6M 0.76% 18,821 SH
30 BROADCOM INC COMMON STOCK AVGO 11135F101 $2.6M 0.76% 6,786 SH
31 SELECT SECTOR SPDR TRUST STATE XLU 81369Y886 $2.4M 0.72% 53,375 SH
32 CISCO SYSTEMS INC CSCO 17275R102 $2.4M 0.71% 20,236 SH
33 FIRST TRUST GLOBAL TACTICAL CO FTGC 33739H101 $2.3M 0.68% 84,182 SH
34 NUSHARES ETF TR SMALL CAP ETF NUSC 67092P607 $2.3M 0.67% 43,317 SH
35 ISHARES CORE S&P MID CAP ETF IJH 464287507 $2.1M 0.62% 27,055 SH
36 AMAZON.COM INC AMZN 023135106 $2.0M 0.61% 8,601 SH
37 VISA INC CL A COMMON STOCK V 92826C839 $2.0M 0.61% 5,950 SH
38 ELI LILLY & CO LLY 532457108 $2.0M 0.60% 1,681 SH
39 ABBVIE INC ABBV 00287Y109 $2.0M 0.60% 8,000 SH
40 JOHNSON & JOHNSON COMMON STOCK JNJ 478160104 $2.0M 0.58% 7,755 SH
41 GOLDMAN SACHS GROUP INC GS 38141G104 $1.9M 0.57% 1,897 SH
42 US BANCORP DEL COM USB 902973304 $1.7M 0.50% 28,013 SH
43 ECOLAB INC ECL 278865100 $1.6M 0.47% 5,646 SH
44 BRISTOL MYERS SQUIBB CO BMY 110122108 $1.5M 0.44% 25,813 SH
45 HOME DEPOT INC HD 437076102 $1.4M 0.43% 4,102 SH
46 BANK OF AMERICA CORP BAC 060505104 $1.4M 0.42% 24,897 SH
47 COSTCO WHOLESALE CORP-NEW COST 22160K105 $1.4M 0.42% 1,507 SH
48 MERCK & CO INC MRK 58933Y105 $1.4M 0.41% 10,703 SH
49 DUKE ENERGY CORPORATION HOLDIN DUK 26441C204 $1.3M 0.40% 10,621 SH
50 WASTE MANAGEMENT INC DEL WM 94106L109 $1.3M 0.40% 6,016 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-07 $337.1M 112 0001486083-26-000003
2026-03-31 2026-04-20 $299.2M 108 0001486083-26-000002
2025-12-31 2026-01-12 $298.0M 113 0001486083-26-000001