Corundum Group, Inc.

In its 13F for Q2 2026 (holdings as of June 30, 2026, filed August 7, 2026), Corundum Group, Inc. reported 112 stock positions worth $337.1 million. Its top holding was iShares Russell 1000 Growth (IWF) at 12.6% of the portfolio, followed by iShares Russell 1000 Value E (IWD, 12.0%) and iShares MSCI Eafe ETF (EFA, 5.1%). Compared with Q1 2026, it opened 8 new positions, sold out of 6, added to 62 and reduced 30. The biggest buy was Intel (INTC, shares +0%) and the biggest sale Linde (LIN, shares −12%).

Most Recent 13F
Q2 2026
Location
COLORADO SPRINGS, CO
CIK
0001486083
Portfolio Value
$337.1M (Q2 2026)
SEC Filing
0001486083-26-000003 ↗ filed Aug 7, 2026

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $207.3M Q1 2024 Q2 2024: $256.0M Q2 2024 Q3 2024: $219.2M Q3 2024 Q4 2024: $267.8M Q4 2024 Q1 2025: $208.5M Q1 2025 Q2 2025: $226.2M Q2 2025 Q3 2025: $243.4M Q3 2025 Q4 2025: $298.0M Q4 2025 Q1 2026: $299.2M Q1 2026 Q2 2026: $337.1M $337.1M Q2 2026

Holdings 112 stocks · $337.1M
IWF iShares Russell 1000 Growth 12.59% 341,716 $42.4M No change
IWD iShares Russell 1000 Value E 12.02% 167,207 $40.5M Add +0.9%
EFA iShares MSCI Eafe ETF 5.08% 164,969 $17.1M Add +1.5%
MMM 3M Co. 4.77% 99,383 $16.1M Add +0.2%
IWO iShares Russell 2000 Growth 4.06% 34,722 $13.7M Reduce -1.7%
IWN iShares Russell 2000 Value E 3.48% 53,073 $11.7M Reduce -0.8%
IWP iShares Russell Mid-Cap Grow 3.31% 76,317 $11.2M Add +1.1%
IWS iShares Russell Mid-Cap Valu 3.02% 61,801 $10.2M Reduce -10.2%
LMT Lockheed Martin Corp. 2.88% 19,045 $9.7M No change
SPY SS SPDR S&P 500 ETF Trust-US 2.78% 12,537 $9.4M Add +1.2%
SUSA iShares ESG Optimized MSCI U 2.19% 47,936 $7.4M Reduce -4.4%
LIN Linde PLC 2.14% 13,913 $7.2M Reduce -12.3%
AAPL Apple Inc. 2.10% 24,451 $7.1M Add +4.0%
VONV Vanguard Russell 1000 Value 1.51% 47,826 $5.1M Add +1.4%
MSFT Microsoft Corp. 1.38% 12,510 $4.7M Add +0.4%
IWB iShares Russell 1000 ETF 1.33% 10,981 $4.5M Add +2.4%
IWM iShares Russell 2000 ETF 1.25% 14,006 $4.2M Add +2.8%
INTC Intel Corp. 1.24% 29,853 $4.2M Add +0.3%
CAT Caterpillar Inc. 1.05% 3,337 $3.6M Reduce -0.7%
SPLV Invesco S&P 500 Low Volatili 1.05% 47,322 $3.5M Add +2.1%
NVDA Nvidia Corp. 1.04% 17,476 $3.5M Add +3.0%
GOOGL Alphabet Inc. Class A 1.03% 9,763 $3.5M Add +1.0%
GLD SPDR Gold Shares 1.03% 9,401 $3.5M Add +0.1%
GOOG Alphabet Inc. Class C 1.00% 9,510 $3.4M Add +6.0%
SPYM Ste STR SPDR PT S&P 500 ETF 0.97% 37,204 $3.3M Add +10.9%
JPM JPMorgan Chase & Co. 0.95% 9,835 $3.2M Add +0.9%
VOO Vanguard S&P 500 ETF 0.85% 4,152 $2.9M Add +5.3%
IVW iShares S&P 500 Growth ETF 0.83% 20,435 $2.8M Reduce -0.3%
XOM Exxonmobil Holdings Corp. 0.76% 18,821 $2.6M Add +1.2%
AVGO Broadcom Inc. 0.76% 6,786 $2.6M Reduce -0.5%
XLU St Sr Utl SL SE SPDR ETF-Usd 0.72% 53,375 $2.4M Add +2.8%
CSCO Cisco Systems Inc. 0.70% 20,236 $2.4M Add +0.2%
FTGC First Trust Global Tactical 0.68% 84,182 $2.3M Add +1.2%
NUSC Nuveen ESG Small-Cap ETF 0.67% 43,317 $2.3M Reduce -4.5%
IJH iShares Core S&P Midcap ETF 0.62% 27,055 $2.1M Reduce -2.2%
AMZN Amazon.com Inc. 0.61% 8,601 $2.0M Add +1.8%
V Visa Inc. Class A 0.61% 5,950 $2.0M Add +0.8%
LLY Eli Lilly & Co. 0.60% 1,681 $2.0M Add +0.6%
ABBV Abbvie Inc. 0.60% 8,000 $2.0M Reduce -0.7%
JNJ Johnson & Johnson 0.58% 7,755 $2.0M Reduce -0.3%
GS Goldman Sachs Group Inc. 0.57% 1,897 $1.9M Add +0.5%
USB US Bancorp 0.50% 28,013 $1.7M Add +0.7%
ECL Ecolab Inc. 0.47% 5,646 $1.6M Reduce -0.2%
BMY Bristol-Myers Squibb Co. 0.44% 25,813 $1.5M Add +0.3%
HD Home Depot Inc. 0.43% 4,102 $1.4M Add +1.2%
BAC Bank of America Corp. 0.42% 24,897 $1.4M Add +1.1%
COST Costco Wholesale Corp. 0.42% 1,507 $1.4M Add +1.9%
MRK Merck & Co. Inc. 0.41% 10,703 $1.4M Add +1.9%
DUK Duke Energy Corp. 0.40% 10,621 $1.3M Reduce -1.4%
WM Waste Management Inc. 0.40% 6,016 $1.3M Add +1.1%
WMT Walmart Inc. 0.40% 11,835 $1.3M Add +2.4%
AMGN Amgen Inc. 0.40% 3,678 $1.3M Add +1.1%
IVE iShares S&P 500 Value ETF 0.39% 5,790 $1.3M Reduce -3.0%
BRK.B Berkshire Hathaway Inc. Class B 0.38% 2,589 $1.3M Add +1.4%
MA Mastercard Inc. Class A 0.38% 2,508 $1.3M Add +1.1%
ORCL Oracle Corp. 0.36% 8,301 $1.2M Add +2.2%
MU Micron Technology Inc. 0.36% 1,038 $1.2M Reduce -0.9%
KO The Coca-Cola Co. 0.30% 12,485 $1.0M Add +3.7%
BA The Boeing Co. 0.30% 4,610 $998K New
META Meta Platforms Inc. Class A 0.29% 1,745 $983K New
ADP Automatic Data Processing 0.29% 4,347 $974K Add +1.3%
CVX Chevron Corp. 0.29% 5,873 $974K Add +3.5%
MCD McDonald's Corp. 0.27% 3,408 $921K Add +2.2%
ABT Abbott Laboratories 0.26% 9,802 $889K Reduce -1.2%
PG The Procter & Gamble Co. 0.26% 5,954 $873K Add +3.2%
FDX FedEx Corp. 0.26% 2,782 $871K Add +3.5%
MDT Medtronic PLC 0.25% 10,694 $837K Add +3.7%
PFE Pfizer Inc. 0.24% 34,264 $825K Add +4.5%
UPS United Parcel Service Class B 0.24% 7,593 $816K Add +3.4%
XEL Xcel Energy Inc. 0.24% 9,911 $796K Add +3.4%
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.23% 8,097 $779K Add +4.6%
VZ Verizon Communications Inc. 0.22% 17,599 $745K Add +4.6%
ANET Arista Networks Inc. 0.22% 4,356 $740K Add +49.4%
IJK iShares S&P Mid-Cap 400 Grow 0.22% 6,265 $736K Reduce -10.5%
TXN Texas Instruments Inc. 0.19% 2,128 $634K Reduce -2.3%
SOLV Solventum Corp. 0.19% 8,214 $634K No change
GE General Electric filed as GE AEROSPACE 0.17% 1,548 $579K Add +0.6%
TSM Taiwan Semiconductor-SP ADR 0.17% 1,174 $561K Reduce -9.0%
LRGE Clearbridge Large Cap Growth 0.16% 6,389 $547K No change
QQQ Invesco QQQ Trust Series 1 0.15% 706 $520K No change
HONA Honeywell Aerospace Inc. 0.15% 2,247 $497K Add +20.7%
HON Honeywell International Inc. 0.13% 1,976 $442K Add +6.2%
IJR iShares Core S&P Small-Cap E 0.12% 2,840 $421K Reduce -61.3%
SNPE Xtrckr S&P 500 Scor&scrn ETF 0.12% 5,852 $403K Add +0.9%
PANW Palo Alto Networks Inc. 0.10% 1,015 $346K Reduce -25.7%
DFAT Dimensional US Target Value 0.10% 4,908 $343K Reduce -19.3%
NUDM Nuveen ESG Intl Devel MRK Eq 0.10% 8,456 $338K Add +0.7%
DFUS Dimensional US Eq MKT ETF 0.10% 4,054 $332K No change
DHR Danaher Corp. 0.09% 1,640 $312K Add +4.3%
CDNS Cadence Design SYS Inc. 0.09% 795 $298K Reduce -1.7%
QUAL iShares MSCI USA Quality Fac 0.08% 1,300 $285K No change
MRVL Marvell Technology Inc. 0.08% 950 $283K Reduce -56.7%
VUG Vanguard Mrngstar GR ETF-Sui 0.08% 3,282 $283K No change
SPOT Spotify Technology SA 0.08% 606 $278K Add +24.4%
PGR Progressive Corp. 0.08% 1,265 $276K Reduce -0.8%
VO Vngrd Mrngstr MD-Cap ETF-Usd 0.08% 3,320 $267K No change
VUSB Vanguard Ultra Short Bond Et 0.07% 5,069 $252K No change
WST West Pharmaceutical Services 0.07% 701 $252K New
UBER Uber Technologies Inc. 0.07% 3,445 $249K Add +10.4%
ISRG Intuitive Surgical Inc. 0.07% 624 $248K Add +9.3%

Show all 112 holdings

Portfolio Sells Q1 2026 → Q2 2026
LIN Linde PLC Reduce -12.3% 2.14% −0.49
IWS iShares Russell Mid-Cap Valu Reduce -10.2% 3.02% −0.33
IJR iShares Core S&P Small-Cap E Reduce -61.3% 0.12% −0.18
TSCO Tractor Supply Company Sold out 0.00% −0.12
SGOV iShares 0-3 Month Treasury B Sold out 0.00% −0.08
ABT Abbott Laboratories Reduce -1.2% 0.26% −0.08
KKR KKR & Co. Inc. Sold out 0.00% −0.07
DUK Duke Energy Corp. Reduce -1.4% 0.40% −0.07
IJT iShares S&P Small-Cap 600 GR Sold out 0.00% −0.07
INTU Intuit Inc. Sold out 0.00% −0.07
VLTO Veralto Corp. Sold out 0.00% −0.07
JNJ Johnson & Johnson Reduce -0.3% 0.58% −0.05
ECL Ecolab Inc. Reduce -0.2% 0.47% −0.04
IVE iShares S&P 500 Value ETF Reduce -3.0% 0.39% −0.03
DFAT Dimensional US Target Value Reduce -19.3% 0.10% −0.03
MPWR Monolithic Power Systems Inc. Reduce -32.5% 0.07% −0.02
SUSA iShares ESG Optimized MSCI U Reduce -4.4% 2.19% −0.02
IJK iShares S&P Mid-Cap 400 Grow Reduce -10.5% 0.22% −0.02
NUSC Nuveen ESG Small-Cap ETF Reduce -4.5% 0.67% −0.01
RSG Republic Services Inc. Reduce -0.8% 0.07% −0.01
FDXF FedEx Freight Holding Co. Reduce -0.3% 0.06% −0.01
AJG Arthur J Gallagher & Co. Reduce -2.4% 0.07% −0.01
IJH iShares Core S&P Midcap ETF Reduce -2.2% 0.62% −0.01
PGR Progressive Corp. Reduce -0.8% 0.08% −0.00
MRVL Marvell Technology Inc. Reduce -56.7% 0.08% +0.01
ABBV Abbvie Inc. Reduce -0.7% 0.60% +0.01
CDNS Cadence Design SYS Inc. Reduce -1.7% 0.09% +0.01
TSM Taiwan Semiconductor-SP ADR Reduce -9.0% 0.17% +0.02
PANW Palo Alto Networks Inc. Reduce -25.7% 0.10% +0.03
TXN Texas Instruments Inc. Reduce -2.3% 0.19% +0.05
AVGO Broadcom Inc. Reduce -0.5% 0.76% +0.05
IVW iShares S&P 500 Growth ETF Reduce -0.3% 0.83% +0.06
IWN iShares Russell 2000 Value E Reduce -0.8% 3.48% +0.09
MU Micron Technology Inc. Reduce -0.9% 0.36% +0.24
CAT Caterpillar Inc. Reduce -0.7% 1.05% +0.26
IWO iShares Russell 2000 Growth Reduce -1.7% 4.06% +0.35

Portfolio Buys Q1 2026 → Q2 2026
INTC Intel Corp. Add +0.3% 1.24% +0.80
BA The Boeing Co. New 0.30% +0.30
META Meta Platforms Inc. Class A New 0.29% +0.29
IWD iShares Russell 1000 Value E Add +0.9% 12.02% +0.19
CSCO Cisco Systems Inc. Add +0.2% 0.70% +0.18
GOOG Alphabet Inc. Class C Add +6.0% 1.00% +0.14
IWM iShares Russell 2000 ETF Add +2.8% 1.25% +0.12
SPYM Ste STR SPDR PT S&P 500 ETF Add +10.9% 0.97% +0.11
GOOGL Alphabet Inc. Class A Add +1.0% 1.03% +0.11
AAPL Apple Inc. Add +4.0% 2.10% +0.10
ANET Arista Networks Inc. Add +49.4% 0.22% +0.10
SPY SS SPDR S&P 500 ETF Trust-US Add +1.2% 2.78% +0.08
LLY Eli Lilly & Co. Add +0.6% 0.60% +0.08
IWP iShares Russell Mid-Cap Grow Add +1.1% 3.31% +0.08
WST West Pharmaceutical Services New 0.07% +0.07
CTAS Cintas Corp. New 0.07% +0.07
DDOG Datadog Inc. Class A New 0.07% +0.07
VEA Vanguard Ftse Developed ETF New 0.06% +0.06
MDY State Street SPDR S&P Midcap New 0.06% +0.06
MTN Vail Resorts Inc. New 0.06% +0.06
VOO Vanguard S&P 500 ETF Add +5.3% 0.85% +0.06
IWB iShares Russell 1000 ETF Add +2.4% 1.33% +0.06
NVDA Nvidia Corp. Add +3.0% 1.04% +0.05
GS Goldman Sachs Group Inc. Add +0.5% 0.57% +0.04
VONV Vanguard Russell 1000 Value Add +1.4% 1.51% +0.03
GE General Electric Add +0.6% 0.17% +0.03
AMZN Amazon.com Inc. Add +1.8% 0.61% +0.02
BAC Bank of America Corp. Add +1.1% 0.42% +0.02
USB US Bancorp Add +0.7% 0.50% +0.02
HONA Honeywell Aerospace Inc. Add +20.7% 0.15% +0.01
V Visa Inc. Class A Add +0.8% 0.61% +0.01
SNPE Xtrckr S&P 500 Scor&scrn ETF Add +0.9% 0.12% +0.00
SPOT Spotify Technology SA Add +24.4% 0.08% +0.00
UPS United Parcel Service Class B Add +3.4% 0.24% +0.00
NUDM Nuveen ESG Intl Devel MRK Eq Add +0.7% 0.10% −0.00
UBER Uber Technologies Inc. Add +10.4% 0.07% −0.00
ADP Automatic Data Processing Add +1.3% 0.29% −0.00
JPM JPMorgan Chase & Co. Add +0.9% 0.95% −0.00
SCHW Schwab (charles) Corp. Add +8.5% 0.06% −0.00
KO The Coca-Cola Co. Add +3.7% 0.30% −0.01
DHR Danaher Corp. Add +4.3% 0.09% −0.01
MRK Merck & Co. Inc. Add +1.9% 0.41% −0.01
ISRG Intuitive Surgical Inc. Add +9.3% 0.07% −0.01
HD Home Depot Inc. Add +1.2% 0.43% −0.02
DIS The Walt Disney Co. Add +4.6% 0.23% −0.02
XEL Xcel Energy Inc. Add +3.4% 0.24% −0.02
PG The Procter & Gamble Co. Add +3.2% 0.26% −0.02
BRK.B Berkshire Hathaway Inc. Class B Add +1.4% 0.38% −0.02
MA Mastercard Inc. Class A Add +1.1% 0.38% −0.03
AMGN Amgen Inc. Add +1.1% 0.40% −0.03

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 112$337.1MIWF, IWD, EFA, MMM, IWO
Q1 2026 108$299.2MIWF, IWD, EFA, MMM, LMT
Q4 2025 113$298.0MIWF, IWD, MMM, EFA, LMT
Q3 2025 103$243.4MIWF, IWD, MMM, EFA, IWO
Q2 2025 103$226.2MIWF, IWD, MMM, EFA, IWO
Q1 2025 98$208.5MIWF, IWD, MMM, EFA, SUSA
Q4 2024 100$267.8MIWF, IWD, SPY, MMM, EFA
Q3 2024 100$219.2MIWF, IWD, MMM, EFA, IWO
Q2 2024 101$256.0MIWF, IWD, SPY, EFA, MMM
Q1 2024 98$207.3MIWF, IWD, MMM, EFA, IWO