Corundum Group, Inc.
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed April 20, 2026), Corundum Group, Inc. reported 108 stock positions worth $299.2 million. Its top holding was iShares Russell 1000 Growth (IWF) at 12.2% of the portfolio, followed by iShares Russell 1000 Value E (IWD, 11.8%) and iShares MSCI Eafe ETF (EFA, 5.3%). Compared with Q4 2025, it opened 9 new positions, sold out of 14, added to 61 and reduced 30. The biggest buy was Exxon Mobil (XOM, shares +5%) and the biggest sale Microsoft (MSFT, shares −18%).
- Most Recent 13F
- Q2 2026
- Location
- COLORADO SPRINGS, CO
- CIK
- 0001486083
- Portfolio Value
- $299.2M (Q1 2026)
- SEC Filing
- 0001486083-26-000002 ↗ filed Apr 20, 2026
Holdings Value
Holdings 108 stocks · $299.2M
| IWF iShares Russell 1000 Growth | 12.17% | 85,429 | $36.4M | Add +12.2% |
| IWD iShares Russell 1000 Value E | 11.84% | 165,730 | $35.4M | Add +1.6% |
| EFA iShares MSCI Eafe ETF | 5.27% | 162,461 | $15.8M | Add +4.5% |
| MMM 3M Co. | 4.81% | 99,152 | $14.4M | Add +1.2% |
| LMT Lockheed Martin Corp. | 3.85% | 19,045 | $11.5M | Reduce -26.1% |
| IWO iShares Russell 2000 Growth | 3.70% | 35,314 | $11.1M | Add +3.0% |
| IWN iShares Russell 2000 Value E | 3.39% | 53,508 | $10.1M | Reduce -0.7% |
| IWS iShares Russell Mid-Cap Valu | 3.35% | 68,811 | $10.0M | Add +1.4% |
| IWP iShares Russell Mid-Cap Grow | 3.23% | 75,496 | $9.7M | Add +10.1% |
| SPY SS SPDR S&P 500 ETF Trust-US | 2.69% | 12,387 | $8.1M | Add +0.9% |
| LIN Linde PLC | 2.63% | 15,863 | $7.9M | Reduce -33.1% |
| SUSA iShares ESG Optimized MSCI U | 2.21% | 50,149 | $6.6M | Reduce -1.8% |
| AAPL Apple Inc. | 1.99% | 23,510 | $6.0M | Add +0.2% |
| MSFT Microsoft Corp. | 1.54% | 12,459 | $4.6M | Reduce -18.3% |
| VONV Vanguard Russell 1000 Value | 1.48% | 47,161 | $4.4M | Add +16.9% |
| GLD SPDR Gold Shares | 1.35% | 9,391 | $4.0M | Add +8.1% |
| IWB iShares Russell 1000 ETF | 1.28% | 10,723 | $3.8M | Add +21.9% |
| SPLV Invesco S&P 500 Low Volatili | 1.13% | 46,346 | $3.4M | Add +19.4% |
| IWM iShares Russell 2000 ETF | 1.13% | 13,630 | $3.4M | Add +26.0% |
| XOM Exxon Mobil Corp. | 1.05% | 18,605 | $3.2M | Add +4.8% |
| NVDA Nvidia Corp. | 0.99% | 16,961 | $3.0M | Add +2.9% |
| JPM JPMorgan Chase & Co. | 0.96% | 9,748 | $2.9M | Add +0.8% |
| GOOGL Alphabet Inc. Class A | 0.93% | 9,665 | $2.8M | Reduce -8.3% |
| GOOG Alphabet Inc. Class C | 0.86% | 8,973 | $2.6M | Add +2.6% |
| SPYM Ste STR SPDR PT S&P 500 ETF | 0.86% | 33,539 | $2.6M | Reduce -14.4% |
| FTGC First Trust Global Tactical | 0.80% | 83,201 | $2.4M | Add +18.1% |
| XLU St Sr Utl SL SE SPDR ETF-Usd | 0.80% | 51,948 | $2.4M | Add +21.7% |
| CAT Caterpillar Inc. | 0.80% | 3,359 | $2.4M | Add +5.7% |
| VOO Vanguard S&P 500 ETF | 0.79% | 3,944 | $2.4M | Add +39.4% |
| IVW iShares S&P 500 Growth ETF | 0.78% | 20,500 | $2.3M | Reduce -3.2% |
| AVGO Broadcom Inc. | 0.71% | 6,820 | $2.1M | Add +5.1% |
| NUSC Nuveen ESG Small-Cap ETF | 0.68% | 45,349 | $2.0M | Reduce -1.7% |
| JNJ Johnson & Johnson | 0.64% | 7,778 | $1.9M | Add +6.0% |
| IJH iShares Core S&P Midcap ETF | 0.62% | 27,655 | $1.9M | Reduce -6.8% |
| V Visa Inc. Class A | 0.60% | 5,906 | $1.8M | Add +33.7% |
| AMZN Amazon.com Inc. | 0.59% | 8,450 | $1.8M | Reduce -6.9% |
| ABBV Abbvie Inc. | 0.59% | 8,055 | $1.8M | Reduce -3.1% |
| GS Goldman Sachs Group Inc. | 0.53% | 1,887 | $1.6M | Add +10.5% |
| CSCO Cisco Systems Inc. | 0.52% | 20,198 | $1.6M | Add +9.7% |
| BMY Bristol-Myers Squibb Co. | 0.52% | 25,726 | $1.6M | Add +8.8% |
| LLY Eli Lilly & Co. | 0.51% | 1,671 | $1.5M | Add +10.5% |
| ECL Ecolab Inc. | 0.50% | 5,655 | $1.5M | Add +11.2% |
| COST Costco Wholesale Corp. | 0.49% | 1,479 | $1.5M | Reduce -7.3% |
| USB US Bancorp | 0.48% | 27,816 | $1.4M | Add +9.8% |
| WMT Walmart Inc. | 0.48% | 11,554 | $1.4M | Add +9.5% |
| DUK Duke Energy Corp. | 0.47% | 10,767 | $1.4M | Add +172.9% |
| WM Waste Management Inc. | 0.46% | 5,950 | $1.4M | Add +11.3% |
| HD Home Depot Inc. | 0.45% | 4,053 | $1.3M | Add +13.6% |
| INTC Intel Corp. | 0.44% | 29,772 | $1.3M | Add +9.9% |
| AMGN Amgen Inc. | 0.43% | 3,637 | $1.3M | Add +10.9% |
| MRK Merck & Co. Inc. | 0.42% | 10,498 | $1.3M | Add +9.8% |
| IVE iShares S&P 500 Value ETF | 0.42% | 5,970 | $1.3M | Reduce -5.5% |
| MA Mastercard Inc. Class A | 0.41% | 2,480 | $1.2M | Add +51.2% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.41% | 2,552 | $1.2M | Add +1.5% |
| BAC Bank of America Corp. filed as BANK AMERICA CORP | 0.40% | 24,638 | $1.2M | Add +15.3% |
| ORCL Oracle Corp. | 0.40% | 8,119 | $1.2M | Add +19.4% |
| CVX Chevron Corp. | 0.39% | 5,673 | $1.2M | Add +20.4% |
| MCD McDonald's Corp. | 0.35% | 3,336 | $1.0M | Reduce -15.6% |
| ABT Abbott Laboratories | 0.34% | 9,924 | $1.0M | Add +3.2% |
| FDX FedEx Corp. | 0.32% | 2,688 | $957K | Add +24.4% |
| PFE Pfizer Inc. | 0.31% | 32,794 | $921K | Add +1.1% |
| KO The Coca-Cola Co. | 0.31% | 12,036 | $915K | Add +13.7% |
| IJR iShares Core S&P Small-Cap E | 0.30% | 7,334 | $912K | Reduce -3.3% |
| MDT Medtronic PLC | 0.30% | 10,313 | $894K | Add +26.2% |
| ADP Automatic Data Processing | 0.29% | 4,290 | $872K | Add +56.7% |
| VZ Verizon Communications Inc. | 0.28% | 16,822 | $844K | New |
| HON Honeywell International Inc. | 0.28% | 3,723 | $842K | Add +6.4% |
| PG The Procter & Gamble Co. | 0.28% | 5,769 | $833K | Add +33.9% |
| XEL Xcel Energy Inc. | 0.25% | 9,585 | $761K | Add +34.6% |
| DIS The Walt Disney Co. filed as DISNEY WALT CO | 0.25% | 7,742 | $746K | Add +24.5% |
| UPS United Parcel Service Class B | 0.24% | 7,347 | $723K | New |
| IJK iShares S&P Mid-Cap 400 Grow | 0.24% | 7,000 | $704K | Reduce -2.8% |
| SOLV Solventum Corp. | 0.18% | 8,214 | $536K | Reduce -0.2% |
| LRGE Clearbridge Large Cap Growth | 0.16% | 6,389 | $480K | Add +0.4% |
| GE General Electric filed as GE AEROSPACE | 0.15% | 1,539 | $437K | Reduce -4.9% |
| TSM Taiwan Semiconductor-SP ADR | 0.15% | 1,290 | $436K | Reduce -5.0% |
| TXN Texas Instruments Inc. | 0.14% | 2,178 | $423K | Add +2.2% |
| QQQ Invesco QQQ Trust Series 1 | 0.14% | 706 | $407K | No change |
| DFAT Dimensional US Target Value | 0.13% | 6,081 | $380K | New |
| TSCO Tractor Supply Company | 0.12% | 7,925 | $359K | No change |
| ANET Arista Networks Inc. | 0.12% | 2,915 | $358K | No change |
| MU Micron Technology Inc. | 0.12% | 1,048 | $354K | Reduce -41.2% |
| SNPE Xtrckr S&P 500 Scor&scrn ETF | 0.12% | 5,799 | $345K | No change |
| NUDM Nuveen ESG Intl Devel MRK Eq | 0.10% | 8,395 | $303K | Add +0.6% |
| DHR Danaher Corp. | 0.10% | 1,573 | $298K | Add +10.5% |
| DFUS Dimensional US Eq MKT ETF | 0.10% | 4,054 | $287K | New |
| ISRG Intuitive Surgical Inc. | 0.09% | 571 | $263K | Add +8.3% |
| MPWR Monolithic Power Systems Inc. | 0.09% | 237 | $259K | Reduce -16.6% |
| PGR Progressive Corp. | 0.08% | 1,275 | $253K | Reduce -26.6% |
| VUSB Vanguard Ultra Short Bond Et | 0.08% | 5,069 | $252K | No change |
| QUAL iShares MSCI USA Quality Fac | 0.08% | 1,300 | $249K | Reduce -34.8% |
| SGOV iShares 0-3 Month Treasury B | 0.08% | 2,406 | $242K | New |
| AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO | 0.08% | 1,105 | $239K | Add +13.0% |
| VUG Vanguard Mrngstar GR ETF-Sui | 0.08% | 547 | $239K | No change |
| VO Vngrd Mrngstr MD-Cap ETF-Usd | 0.08% | 830 | $238K | Reduce -6.7% |
| SPOT Spotify Technology SA | 0.08% | 487 | $236K | New |
| RSG Republic Services Inc. | 0.08% | 1,070 | $234K | Reduce -37.6% |
| CDNS Cadence Design SYS Inc. | 0.08% | 809 | $225K | Reduce -6.9% |
| UBER Uber Technologies Inc. | 0.07% | 3,121 | $224K | Add +10.9% |
| KKR KKR & Co. Inc. | 0.07% | 2,410 | $223K | Add +20.0% |
Portfolio Sells Q4 2025 → Q1 2026
| MSFT Microsoft Corp. | Reduce -18.3% | 1.54% | −0.93 |
| LIN Linde PLC | Reduce -33.1% | 2.63% | −0.77 |
| IVV iShares Core S&P 500 ETF | Sold out | 0.00% | −0.37 |
| LMT Lockheed Martin Corp. | Reduce -26.1% | 3.85% | −0.33 |
| PH Parker Hannifin Corp. | Sold out | 0.00% | −0.21 |
| CLX Clorox Company | Sold out | 0.00% | −0.20 |
| SPYM Ste STR SPDR PT S&P 500 ETF | Reduce -14.4% | 0.86% | −0.20 |
| GOOGL Alphabet Inc. Class A | Reduce -8.3% | 0.93% | −0.18 |
| CTVA Corteva Inc. | Sold out | 0.00% | −0.18 |
| SUSA iShares ESG Optimized MSCI U | Reduce -1.8% | 2.21% | −0.17 |
| TT Trane Technologies PLC | Sold out | 0.00% | −0.14 |
| TJX TJX Companies Inc. | Sold out | 0.00% | −0.12 |
| AMZN Amazon.com Inc. | Reduce -6.9% | 0.59% | −0.12 |
| IVW iShares S&P 500 Growth ETF | Reduce -3.2% | 0.78% | −0.10 |
| META Meta Platforms Inc. Class A | Sold out | 0.00% | −0.08 |
| ICE Intercontinental Exchange Inc. | Sold out | 0.00% | −0.08 |
| GD General Dynamics Corp. | Sold out | 0.00% | −0.08 |
| NOW ServiceNow Inc. | Sold out | 0.00% | −0.08 |
| WST West Pharmaceutical Services | Sold out | 0.00% | −0.08 |
| MCK McKesson Corp. | Sold out | 0.00% | −0.07 |
| UNH Unitedhealth Group Inc. | Sold out | 0.00% | −0.07 |
| MCD McDonald's Corp. | Reduce -15.6% | 0.35% | −0.06 |
| INTU Intuit Inc. | Reduce -12.8% | 0.07% | −0.05 |
| MU Micron Technology Inc. | Reduce -41.2% | 0.12% | −0.05 |
| ABBV Abbvie Inc. | Reduce -3.1% | 0.59% | −0.05 |
| QUAL iShares MSCI USA Quality Fac | Reduce -34.8% | 0.08% | −0.05 |
| PGR Progressive Corp. | Reduce -26.6% | 0.08% | −0.05 |
| RSG Republic Services Inc. | Reduce -37.6% | 0.08% | −0.04 |
| SOLV Solventum Corp. | Reduce -0.2% | 0.18% | −0.04 |
| IJH iShares Core S&P Midcap ETF | Reduce -6.8% | 0.62% | −0.03 |
| IVE iShares S&P 500 Value ETF | Reduce -5.5% | 0.42% | −0.03 |
| TMC TMC the Metals Co. Inc. | Sold out | 0.00% | −0.02 |
| GE General Electric | Reduce -4.9% | 0.15% | −0.02 |
| VLTO Veralto Corp. | Reduce -11.2% | 0.07% | −0.02 |
| CDNS Cadence Design SYS Inc. | Reduce -6.9% | 0.08% | −0.02 |
| SCHW Schwab (charles) Corp. | Reduce -12.7% | 0.07% | −0.02 |
| NUSC Nuveen ESG Small-Cap ETF | Reduce -1.7% | 0.68% | −0.01 |
| VO Vngrd Mrngstr MD-Cap ETF-Usd | Reduce -6.7% | 0.08% | −0.01 |
| IJR iShares Core S&P Small-Cap E | Reduce -3.3% | 0.30% | −0.00 |
| MPWR Monolithic Power Systems Inc. | Reduce -16.6% | 0.09% | +0.00 |
| IJK iShares S&P Mid-Cap 400 Grow | Reduce -2.8% | 0.24% | +0.00 |
| TSM Taiwan Semiconductor-SP ADR | Reduce -5.0% | 0.15% | +0.01 |
| COST Costco Wholesale Corp. | Reduce -7.3% | 0.49% | +0.03 |
| IWN iShares Russell 2000 Value E | Reduce -0.7% | 3.39% | +0.11 |
Portfolio Buys Q4 2025 → Q1 2026
| XOM Exxon Mobil Corp. | Add +4.8% | 1.05% | +0.34 |
| IWD iShares Russell 1000 Value E | Add +1.6% | 11.84% | +0.33 |
| DUK Duke Energy Corp. | Add +172.9% | 0.47% | +0.32 |
| VZ Verizon Communications Inc. | New | 0.28% | +0.28 |
| EFA iShares MSCI Eafe ETF | Add +4.5% | 5.27% | +0.26 |
| FTGC First Trust Global Tactical | Add +18.1% | 0.80% | +0.25 |
| UPS United Parcel Service Class B | New | 0.24% | +0.24 |
| IWM iShares Russell 2000 ETF | Add +26.0% | 1.13% | +0.24 |
| VONV Vanguard Russell 1000 Value | Add +16.9% | 1.48% | +0.23 |
| SPLV Invesco S&P 500 Low Volatili | Add +19.4% | 1.13% | +0.20 |
| GLD SPDR Gold Shares | Add +8.1% | 1.35% | +0.20 |
| VOO Vanguard S&P 500 ETF | Add +39.4% | 0.79% | +0.19 |
| XLU St Sr Utl SL SE SPDR ETF-Usd | Add +21.7% | 0.80% | +0.19 |
| CAT Caterpillar Inc. | Add +5.7% | 0.80% | +0.18 |
| IWB iShares Russell 1000 ETF | Add +21.9% | 1.28% | +0.18 |
| CVX Chevron Corp. | Add +20.4% | 0.39% | +0.15 |
| IWS iShares Russell Mid-Cap Valu | Add +1.4% | 3.35% | +0.14 |
| DFAT Dimensional US Target Value | New | 0.13% | +0.13 |
| JNJ Johnson & Johnson | Add +6.0% | 0.64% | +0.13 |
| FDX FedEx Corp. | Add +24.4% | 0.32% | +0.11 |
| INTC Intel Corp. | Add +9.9% | 0.44% | +0.10 |
| MA Mastercard Inc. Class A | Add +51.2% | 0.41% | +0.10 |
| DFUS Dimensional US Eq MKT ETF | New | 0.10% | +0.10 |
| BMY Bristol-Myers Squibb Co. | Add +8.8% | 0.52% | +0.09 |
| WMT Walmart Inc. | Add +9.5% | 0.48% | +0.09 |
| MRK Merck & Co. Inc. | Add +9.8% | 0.42% | +0.08 |
| IWF iShares Russell 1000 Growth | Add +12.2% | 12.17% | +0.08 |
| IWP iShares Russell Mid-Cap Grow | Add +10.1% | 3.23% | +0.08 |
| SGOV iShares 0-3 Month Treasury B | New | 0.08% | +0.08 |
| SPOT Spotify Technology SA | New | 0.08% | +0.08 |
| XEL Xcel Energy Inc. | Add +34.6% | 0.25% | +0.08 |
| V Visa Inc. Class A | Add +33.7% | 0.60% | +0.08 |
| PANW Palo Alto Networks Inc. | New | 0.07% | +0.07 |
| MRVL Marvell Technology Inc. | New | 0.07% | +0.07 |
| PG The Procter & Gamble Co. | Add +33.9% | 0.28% | +0.07 |
| DFUV Dimensional US Marketwide Va | New | 0.07% | +0.07 |
| AMGN Amgen Inc. | Add +10.9% | 0.43% | +0.07 |
| WM Waste Management Inc. | Add +11.3% | 0.46% | +0.06 |
| KO The Coca-Cola Co. | Add +13.7% | 0.31% | +0.06 |
| ADP Automatic Data Processing | Add +56.7% | 0.29% | +0.06 |
| ECL Ecolab Inc. | Add +11.2% | 0.50% | +0.05 |
| HON Honeywell International Inc. | Add +6.4% | 0.28% | +0.05 |
| CSCO Cisco Systems Inc. | Add +9.7% | 0.52% | +0.05 |
| PFE Pfizer Inc. | Add +1.1% | 0.31% | +0.04 |
| MDT Medtronic PLC | Add +26.2% | 0.30% | +0.04 |
| HD Home Depot Inc. | Add +13.6% | 0.45% | +0.03 |
| GS Goldman Sachs Group Inc. | Add +10.5% | 0.53% | +0.03 |
| USB US Bancorp | Add +9.8% | 0.48% | +0.03 |
| TXN Texas Instruments Inc. | Add +2.2% | 0.14% | +0.02 |
| DIS The Walt Disney Co. | Add +24.5% | 0.25% | +0.01 |
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 |