Corundum Group, Inc.
In its 13F for Q4 2025 (holdings as of December 31, 2025, filed January 12, 2026), Corundum Group, Inc. reported 113 stock positions worth $298.0 million. Its top holding was iShares Russell 1000 Growth (IWF) at 12.1% of the portfolio, followed by iShares Russell 1000 Value E (IWD, 11.5%) and 3M (MMM, 5.3%). Compared with Q3 2025, it opened 16 new positions, sold out of 6, added to 45 and reduced 43. The biggest buy was a new position in Lockheed Martin (LMT) and the biggest sale iShares ESG Optimized MSCI U (SUSA, shares −19%).
- Most Recent 13F
- Q2 2026
- Location
- COLORADO SPRINGS, CO
- CIK
- 0001486083
- Portfolio Value
- $298.0M (Q4 2025)
- SEC Filing
- 0001486083-26-000001 ↗ filed Jan 12, 2026
Holdings Value
Holdings 113 stocks · $298.0M
| IWF iShares Russell 1000 Growth | 12.09% | 76,132 | $36.0M | Add +17.5% |
| IWD iShares Russell 1000 Value E | 11.51% | 163,052 | $34.3M | Add +32.9% |
| MMM 3M Co. | 5.26% | 97,999 | $15.7M | Add +0.2% |
| EFA iShares MSCI Eafe ETF | 5.01% | 155,518 | $14.9M | Add +21.0% |
| LMT Lockheed Martin Corp. | 4.18% | 25,760 | $12.5M | New |
| IWO iShares Russell 2000 Growth | 3.72% | 34,285 | $11.1M | Add +18.6% |
| LIN Linde PLC | 3.39% | 23,722 | $10.1M | New |
| IWN iShares Russell 2000 Value E | 3.28% | 53,869 | $9.8M | Add +23.5% |
| IWS iShares Russell Mid-Cap Valu | 3.21% | 67,887 | $9.6M | Add +30.3% |
| IWP iShares Russell Mid-Cap Grow | 3.15% | 68,587 | $9.4M | Add +26.9% |
| SPY SS SPDR S&P 500 ETF Trust-US | 2.81% | 12,277 | $8.4M | Add +3.0% |
| MSFT Microsoft Corp. | 2.48% | 15,256 | $7.4M | Add +2.2% |
| SUSA iShares ESG Optimized MSCI U | 2.39% | 51,082 | $7.1M | Reduce -18.9% |
| AAPL Apple Inc. | 2.14% | 23,469 | $6.4M | Add +0.1% |
| VONV Vanguard Russell 1000 Value | 1.25% | 40,341 | $3.7M | Reduce -4.0% |
| GLD SPDR Gold Shares | 1.16% | 8,687 | $3.4M | Reduce -5.1% |
| GOOGL Alphabet Inc. Class A | 1.11% | 10,542 | $3.3M | Reduce -4.3% |
| IWB iShares Russell 1000 ETF | 1.10% | 8,798 | $3.3M | Add +3.2% |
| SPYM Ste STR SPDR PT S&P 500 ETF | 1.05% | 39,180 | $3.1M | Add +1030.1% |
| JPM JPMorgan Chase & Co. | 1.05% | 9,675 | $3.1M | Reduce -1.5% |
| NVDA Nvidia Corp. | 1.03% | 16,478 | $3.1M | Add +0.5% |
| SPLV Invesco S&P 500 Low Volatili | 0.93% | 38,807 | $2.8M | Reduce -3.3% |
| GOOG Alphabet Inc. Class C | 0.92% | 8,742 | $2.7M | Reduce -0.6% |
| IWM iShares Russell 2000 ETF | 0.89% | 10,821 | $2.7M | Add +4.4% |
| IVW iShares S&P 500 Growth ETF | 0.88% | 21,180 | $2.6M | Add +3.3% |
| AVGO Broadcom Inc. | 0.75% | 6,489 | $2.2M | Add +15.4% |
| XOM Exxon Mobil Corp. | 0.72% | 17,746 | $2.1M | Add +5.2% |
| AMZN Amazon.com Inc. | 0.70% | 9,080 | $2.1M | Add +1.3% |
| NUSC Nuveen ESG Small-Cap ETF | 0.69% | 46,136 | $2.1M | Reduce -20.0% |
| IJH iShares Core S&P Midcap ETF | 0.66% | 29,675 | $2.0M | Reduce -2.0% |
| ABBV Abbvie Inc. | 0.64% | 8,311 | $1.9M | Add +10.8% |
| XLU St Sr Utl SL SE SPDR ETF-Usd | 0.61% | 42,691 | $1.8M | Reduce -6.5% |
| CAT Caterpillar Inc. | 0.61% | 3,178 | $1.8M | Reduce -4.0% |
| VOO Vanguard S&P 500 ETF | 0.60% | 2,830 | $1.8M | Add +1.8% |
| FTGC First Trust Global Tactical | 0.55% | 70,451 | $1.6M | Reduce -4.3% |
| LLY Eli Lilly & Co. | 0.55% | 1,512 | $1.6M | Reduce -6.3% |
| V Visa Inc. Class A | 0.52% | 4,416 | $1.5M | Reduce -16.8% |
| JNJ Johnson & Johnson | 0.51% | 7,335 | $1.5M | Reduce -0.4% |
| GS Goldman Sachs Group Inc. | 0.50% | 1,707 | $1.5M | Reduce -6.2% |
| CSCO Cisco Systems Inc. | 0.48% | 18,420 | $1.4M | Reduce -6.1% |
| COST Costco Wholesale Corp. | 0.46% | 1,596 | $1.4M | Add +18.7% |
| USB US Bancorp | 0.45% | 25,346 | $1.4M | Reduce -7.5% |
| IVE iShares S&P 500 Value ETF | 0.45% | 6,320 | $1.3M | Add +5.9% |
| ECL Ecolab Inc. | 0.45% | 5,085 | $1.3M | Reduce -0.4% |
| ORCL Oracle Corp. | 0.44% | 6,799 | $1.3M | Reduce -18.3% |
| BMY Bristol-Myers Squibb Co. | 0.43% | 23,634 | $1.3M | Reduce -7.1% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.42% | 2,515 | $1.3M | Reduce -3.6% |
| HD Home Depot Inc. | 0.41% | 3,568 | $1.2M | Reduce -7.9% |
| MCD McDonald's Corp. | 0.41% | 3,953 | $1.2M | Add +9.3% |
| ABT Abbott Laboratories | 0.40% | 9,619 | $1.2M | Add +10.3% |
| BAC Bank of America Corp. filed as BANK AMERICA CORP | 0.39% | 21,373 | $1.2M | Reduce -11.8% |
| WMT Walmart Inc. | 0.39% | 10,551 | $1.2M | Add +2.7% |
| WM Waste Management Inc. | 0.39% | 5,345 | $1.2M | Reduce -6.8% |
| IVV iShares Core S&P 500 ETF | 0.37% | 1,618 | $1.1M | New |
| AMGN Amgen Inc. | 0.36% | 3,279 | $1.1M | Reduce -7.0% |
| MRK Merck & Co. Inc. | 0.34% | 9,557 | $1.0M | Reduce -1.9% |
| INTC Intel Corp. | 0.34% | 27,080 | $999K | Add +0.4% |
| MA Mastercard Inc. Class A | 0.31% | 1,640 | $936K | Reduce -30.0% |
| IJR iShares Core S&P Small-Cap E | 0.31% | 7,580 | $911K | Reduce -7.7% |
| PFE Pfizer Inc. | 0.27% | 32,437 | $808K | Reduce -0.8% |
| MDT Medtronic PLC | 0.26% | 8,173 | $785K | Reduce -3.0% |
| KO The Coca-Cola Co. | 0.25% | 10,585 | $740K | Add +3.5% |
| CVX Chevron Corp. | 0.24% | 4,713 | $718K | Add +2.7% |
| DIS The Walt Disney Co. filed as DISNEY WALT CO | 0.24% | 6,217 | $707K | Reduce -0.5% |
| ADP Automatic Data Processing | 0.24% | 2,738 | $704K | Reduce -18.4% |
| IJK iShares S&P Mid-Cap 400 Grow | 0.23% | 7,200 | $698K | Add +2.9% |
| HON Honeywell International Inc. | 0.23% | 3,498 | $682K | Add +17.8% |
| SOLV Solventum Corp. | 0.22% | 8,227 | $652K | No change |
| FDX FedEx Corp. | 0.21% | 2,161 | $624K | Add +4.5% |
| PG The Procter & Gamble Co. | 0.21% | 4,308 | $617K | Reduce -26.1% |
| PH Parker Hannifin Corp. | 0.21% | 696 | $612K | New |
| CLX Clorox Company | 0.20% | 6,000 | $605K | New |
| CTVA Corteva Inc. | 0.18% | 7,898 | $529K | New |
| XEL Xcel Energy Inc. | 0.18% | 7,120 | $526K | Add +0.5% |
| LRGE Clearbridge Large Cap Growth | 0.18% | 6,363 | $524K | No change |
| MU Micron Technology Inc. | 0.17% | 1,783 | $509K | Reduce -5.1% |
| GE General Electric filed as GE AEROSPACE | 0.17% | 1,618 | $498K | Add +13.8% |
| DUK Duke Energy Corp. | 0.16% | 3,945 | $462K | Reduce -59.1% |
| QQQ Invesco QQQ Trust Series 1 | 0.15% | 706 | $434K | Reduce -1.3% |
| TT Trane Technologies PLC | 0.14% | 1,062 | $413K | New |
| TSM Taiwan Semiconductor-SP ADR | 0.14% | 1,358 | $413K | Add +53.1% |
| TSCO Tractor Supply Company | 0.13% | 7,925 | $396K | No change |
| QUAL iShares MSCI USA Quality Fac | 0.13% | 1,994 | $396K | No change |
| PGR Progressive Corp. | 0.13% | 1,736 | $395K | Add +83.7% |
| ANET Arista Networks Inc. | 0.13% | 2,915 | $382K | Reduce -20.3% |
| TXN Texas Instruments Inc. | 0.12% | 2,132 | $370K | Reduce -0.1% |
| RSG Republic Services Inc. | 0.12% | 1,715 | $363K | Add +1.9% |
| INTU Intuit Inc. | 0.12% | 548 | $363K | Add +36.7% |
| SNPE Xtrckr S&P 500 Scor&scrn ETF | 0.12% | 5,799 | $362K | New |
| TJX TJX Companies Inc. filed as TJX COS INC NEW | 0.12% | 2,303 | $354K | New |
| DHR Danaher Corp. | 0.11% | 1,423 | $326K | New |
| NUDM Nuveen ESG Intl Devel MRK Eq | 0.10% | 8,348 | $302K | Add +2.4% |
| ISRG Intuitive Surgical Inc. | 0.10% | 527 | $298K | New |
| CDNS Cadence Design SYS Inc. | 0.09% | 869 | $272K | Add +43.6% |
| VUG Vanguard Mrngstar GR ETF-Sui | 0.09% | 547 | $267K | No change |
| VLTO Veralto Corp. | 0.09% | 2,617 | $261K | Add +2.4% |
| VO Vngrd Mrngstr MD-Cap ETF-Usd | 0.09% | 890 | $258K | No change |
| MPWR Monolithic Power Systems Inc. | 0.09% | 284 | $257K | Add +11.8% |
| KKR KKR & Co. Inc. | 0.09% | 2,009 | $256K | New |
| AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO | 0.08% | 978 | $253K | Add +43.8% |
Portfolio Sells Q3 2025 → Q4 2025
| SUSA iShares ESG Optimized MSCI U | Reduce -18.9% | 2.39% | −1.12 |
| ORCL Oracle Corp. | Reduce -18.3% | 0.44% | −0.52 |
| NUSC Nuveen ESG Small-Cap ETF | Reduce -20.0% | 0.69% | −0.35 |
| DUK Duke Energy Corp. | Reduce -59.1% | 0.16% | −0.34 |
| VONV Vanguard Russell 1000 Value | Reduce -4.0% | 1.25% | −0.29 |
| VZ Verizon Communications Inc. | Sold out | 0.00% | −0.28 |
| SPLV Invesco S&P 500 Low Volatili | Reduce -3.3% | 0.93% | −0.28 |
| TGT Target Corp. | Sold out | 0.00% | −0.25 |
| FTGC First Trust Global Tactical | Reduce -4.3% | 0.55% | −0.23 |
| MA Mastercard Inc. Class A | Reduce -30.0% | 0.31% | −0.23 |
| HD Home Depot Inc. | Reduce -7.9% | 0.41% | −0.23 |
| JPM JPMorgan Chase & Co. | Reduce -1.5% | 1.05% | −0.23 |
| V Visa Inc. Class A | Reduce -16.8% | 0.52% | −0.22 |
| XLU St Sr Utl SL SE SPDR ETF-Usd | Reduce -6.5% | 0.61% | −0.21 |
| UPS United Parcel Service Class B | Sold out | 0.00% | −0.20 |
| GLD SPDR Gold Shares | Reduce -5.1% | 1.16% | −0.18 |
| ADP Automatic Data Processing | Reduce -18.4% | 0.24% | −0.17 |
| PG The Procter & Gamble Co. | Reduce -26.1% | 0.21% | −0.16 |
| IJH iShares Core S&P Midcap ETF | Reduce -2.0% | 0.66% | −0.16 |
| FISV Fiserv Inc. | Sold out | 0.00% | −0.13 |
| ECL Ecolab Inc. | Reduce -0.4% | 0.45% | −0.13 |
| WM Waste Management Inc. | Reduce -6.8% | 0.39% | −0.13 |
| BAC Bank of America Corp. | Reduce -11.8% | 0.39% | −0.12 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -3.6% | 0.42% | −0.11 |
| IJR iShares Core S&P Small-Cap E | Reduce -7.7% | 0.31% | −0.10 |
| MTN Vail Resorts Inc. | Sold out | 0.00% | −0.09 |
| GS Goldman Sachs Group Inc. | Reduce -6.2% | 0.50% | −0.09 |
| ANET Arista Networks Inc. | Reduce -20.3% | 0.13% | −0.09 |
| USB US Bancorp | Reduce -7.5% | 0.45% | −0.09 |
| MCHP Microchip Technology Inc. | Sold out | 0.00% | −0.09 |
| IJT iShares S&P Small-Cap 600 GR | Reduce -44.2% | 0.07% | −0.08 |
| CSCO Cisco Systems Inc. | Reduce -6.1% | 0.48% | −0.08 |
| PFE Pfizer Inc. | Reduce -0.8% | 0.27% | −0.07 |
| MDT Medtronic PLC | Reduce -3.0% | 0.26% | −0.07 |
| DIS The Walt Disney Co. | Reduce -0.5% | 0.24% | −0.06 |
| JNJ Johnson & Johnson | Reduce -0.4% | 0.51% | −0.05 |
| AMGN Amgen Inc. | Reduce -7.0% | 0.36% | −0.05 |
| BMY Bristol-Myers Squibb Co. | Reduce -7.1% | 0.43% | −0.04 |
| META Meta Platforms Inc. Class A | Reduce -7.8% | 0.08% | −0.04 |
| CAT Caterpillar Inc. | Reduce -4.0% | 0.61% | −0.04 |
| TXN Texas Instruments Inc. | Reduce -0.1% | 0.12% | −0.04 |
| QQQ Invesco QQQ Trust Series 1 | Reduce -1.3% | 0.15% | −0.03 |
| UNH Unitedhealth Group Inc. | Reduce -5.9% | 0.07% | −0.03 |
| ICE Intercontinental Exchange Inc. | Reduce -0.7% | 0.08% | −0.02 |
| MRK Merck & Co. Inc. | Reduce -1.9% | 0.34% | +0.00 |
| GOOGL Alphabet Inc. Class A | Reduce -4.3% | 1.11% | +0.01 |
| LLY Eli Lilly & Co. | Reduce -6.3% | 0.55% | +0.04 |
| GOOG Alphabet Inc. Class C | Reduce -0.6% | 0.92% | +0.04 |
| MU Micron Technology Inc. | Reduce -5.1% | 0.17% | +0.04 |
Portfolio Buys Q3 2025 → Q4 2025
| LMT Lockheed Martin Corp. | New | 4.18% | +4.18 |
| LIN Linde PLC | New | 3.39% | +3.39 |
| IWD iShares Russell 1000 Value E | Add +32.9% | 11.51% | +1.24 |
| SPYM Ste STR SPDR PT S&P 500 ETF | Add +1030.1% | 1.05% | +0.94 |
| IVV iShares Core S&P 500 ETF | New | 0.37% | +0.37 |
| IWS iShares Russell Mid-Cap Valu | Add +30.3% | 3.21% | +0.22 |
| PH Parker Hannifin Corp. | New | 0.21% | +0.21 |
| CLX Clorox Company | New | 0.20% | +0.20 |
| CTVA Corteva Inc. | New | 0.18% | +0.18 |
| TT Trane Technologies PLC | New | 0.14% | +0.14 |
| SNPE Xtrckr S&P 500 Scor&scrn ETF | New | 0.12% | +0.12 |
| TJX TJX Companies Inc. | New | 0.12% | +0.12 |
| DHR Danaher Corp. | New | 0.11% | +0.11 |
| IWN iShares Russell 2000 Value E | Add +23.5% | 3.28% | +0.11 |
| ISRG Intuitive Surgical Inc. | New | 0.10% | +0.10 |
| KKR KKR & Co. Inc. | New | 0.09% | +0.09 |
| SCHW Schwab (charles) Corp. | New | 0.08% | +0.08 |
| GD General Dynamics Corp. | New | 0.08% | +0.08 |
| EFA iShares MSCI Eafe ETF | Add +21.0% | 5.01% | +0.08 |
| WST West Pharmaceutical Services | New | 0.08% | +0.08 |
| MCK McKesson Corp. | New | 0.07% | +0.07 |
| PGR Progressive Corp. | Add +83.7% | 0.13% | +0.04 |
| TSM Taiwan Semiconductor-SP ADR | Add +53.1% | 0.14% | +0.04 |
| INTU Intuit Inc. | Add +36.7% | 0.12% | +0.01 |
| FDX FedEx Corp. | Add +4.5% | 0.21% | +0.01 |
| CDNS Cadence Design SYS Inc. | Add +43.6% | 0.09% | +0.00 |
| AJG Arthur J Gallagher & Co. | Add +43.8% | 0.08% | −0.00 |
| GE General Electric | Add +13.8% | 0.17% | −0.01 |
| AVGO Broadcom Inc. | Add +15.4% | 0.75% | −0.01 |
| MPWR Monolithic Power Systems Inc. | Add +11.8% | 0.09% | −0.01 |
| IWP iShares Russell Mid-Cap Grow | Add +26.9% | 3.15% | −0.01 |
| UBER Uber Technologies Inc. | Add +17.6% | 0.08% | −0.02 |
| NOW ServiceNow Inc. | Add +14.7% | 0.08% | −0.02 |
| VLTO Veralto Corp. | Add +2.4% | 0.09% | −0.02 |
| NUDM Nuveen ESG Intl Devel MRK Eq | Add +2.4% | 0.10% | −0.02 |
| HON Honeywell International Inc. | Add +17.8% | 0.23% | −0.03 |
| KO The Coca-Cola Co. | Add +3.5% | 0.25% | −0.03 |
| INTC Intel Corp. | Add +0.4% | 0.34% | −0.04 |
| RSG Republic Services Inc. | Add +1.9% | 0.12% | −0.04 |
| WMT Walmart Inc. | Add +2.7% | 0.39% | −0.04 |
| IJK iShares S&P Mid-Cap 400 Grow | Add +2.9% | 0.23% | −0.04 |
| MCD McDonald's Corp. | Add +9.3% | 0.41% | −0.05 |
| COST Costco Wholesale Corp. | Add +18.7% | 0.46% | −0.05 |
| CVX Chevron Corp. | Add +2.7% | 0.24% | −0.05 |
| IVE iShares S&P 500 Value ETF | Add +5.9% | 0.45% | −0.06 |
| XEL Xcel Energy Inc. | Add +0.5% | 0.18% | −0.06 |
| XOM Exxon Mobil Corp. | Add +5.2% | 0.72% | −0.07 |
| ABT Abbott Laboratories | Add +10.3% | 0.40% | −0.08 |
| ABBV Abbvie Inc. | Add +10.8% | 0.64% | −0.08 |
| IWO iShares Russell 2000 Growth | Add +18.6% | 3.72% | −0.08 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 112 | $337.1M | IWF, IWD, EFA, MMM, IWO |
| Q1 2026 | 108 | $299.2M | IWF, IWD, EFA, MMM, LMT |
| Q4 2025 | 113 | $298.0M | IWF, IWD, MMM, EFA, LMT |
| Q3 2025 | 103 | $243.4M | IWF, IWD, MMM, EFA, IWO |
| Q2 2025 | 103 | $226.2M | IWF, IWD, MMM, EFA, IWO |
| Q1 2025 | 98 | $208.5M | IWF, IWD, MMM, EFA, SUSA |
| Q4 2024 | 100 | $267.8M | IWF, IWD, SPY, MMM, EFA |
| Q3 2024 | 100 | $219.2M | IWF, IWD, MMM, EFA, IWO |
| Q2 2024 | 101 | $256.0M | IWF, IWD, SPY, EFA, MMM |
| Q1 2024 | 98 | $207.3M | IWF, IWD, MMM, EFA, IWO |