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

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 $299.2M Q1 2026 Q2 2026: $337.1M Q2 2026

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%
PANW Palo Alto Networks Inc. 0.07% 1,366 $219K New
MRVL Marvell Technology Inc. 0.07% 2,194 $217K New
DFUV Dimensional US Marketwide Va 0.07% 4,331 $210K New
IJT iShares S&P Small-Cap 600 GR 0.07% 1,450 $210K No change
INTU Intuit Inc. 0.07% 478 $207K Reduce -12.8%
VLTO Veralto Corp. 0.07% 2,323 $205K Reduce -11.2%
SCHW Schwab (charles) Corp. 0.07% 2,175 $204K Reduce -12.7%
FUTO Futureone Inc. 0.00% 100,000 $0 No change

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

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