Corundum Group, Inc.
CIK
1486083
Location
COLORADO SPRINGS, CO
Portfolio Value
Small
$120,900,201
Diversification
Diversified
Filing Date
Global Rank
#5,277
/ 8,603
▲ 73
· as of Mar 2026
Top Industry
Conglomerates
14.1%
3Y Alpha vs SPY
-1.8%
Period ended 3 months ago
Filed Apr 20, 2026 · 3mo
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+68.4%
SPY
+76.0%
Annualised alpha
-1.8%
Max drawdown
−16.3%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
71 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
11.9%
−0.5 pts
Top 5
39.5%
−3.1 pts
Top 10
53.8%
−4.0 pts
HHI
435
Diversified−45
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Industrials | 27.2% | $32,910,719 |
| Technology | 19.5% | $23,516,585 |
| Healthcare | 10.9% | $13,224,045 |
| Unclassified | 10.3% | $12,504,103 |
| Financial Services | 10.2% | $12,278,176 |
| Basic Materials | 7.7% | $9,368,583 |
| Consumer Defensive | 3.9% | $4,658,261 |
| Communication Services | 3.8% | $4,606,055 |
| Consumer Cyclical | 3.7% | $4,488,669 |
| Utilities | 1.8% | $2,171,262 |
| Energy | 1.0% | $1,173,743 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased
25 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| DUK | Duke Energy CORP | +6,822 | 10,767 | $1,409,830 | |
| BAC | Bank Of America Corp /De/ | +3,265 | 24,638 | $1,201,102 | |
| INTC | Intel Corp | +2,692 | 29,772 | $1,313,838 | |
| USB | US Bancorp De | +2,470 | 27,816 | $1,446,710 | |
| XEL | Xcel Energy Inc | +2,465 | 9,585 | $761,432 | |
| MDT | Medtronic plc | +2,140 | 10,313 | $893,621 | |
| BMY | Bristol Myers Squibb Co | +2,092 | 25,726 | $1,560,281 | |
| CSCO | Cisco Systems, Inc. | +1,778 | 20,198 | $1,567,162 | |
| ADP | Automatic Data Processing Inc | +1,552 | 4,290 | $871,642 | |
| DIS | Walt Disney Co | +1,525 | 7,742 | $746,173 | |
| V | Visa Inc. | +1,490 | 5,906 | $1,785,029 | |
| PG | PROCTER & GAMBLE Co | +1,461 | 5,769 | $833,274 | |
| KO | Coca Cola Co | +1,451 | 12,036 | $915,337 | |
| ORCL | Oracle Corp | +1,320 | 8,119 | $1,194,386 | |
| MMM | 3M Co | +1,153 | 99,152 | $14,399,844 | |
| WMT | Walmart Inc. | +1,003 | 11,554 | $1,435,931 | |
| CVX | Chevron Corp | +960 | 5,673 | $1,173,743 | |
| MRK | Merck & Co., Inc. | +941 | 10,498 | $1,262,804 | |
| MA | Mastercard Inc | +840 | 2,480 | $1,239,156 | |
| GLD | Spdr Gold Trust | +704 | 9,391 | $4,040,853 | |
| WM | Waste Management Inc | +605 | 5,950 | $1,367,250 | |
| ECL | Ecolab Inc. | +570 | 5,655 | $1,504,343 | |
| FDX | Fedex Corp | +527 | 2,688 | $771,484 | |
| HD | Home Depot, Inc. | +485 | 4,053 | $1,332,991 | |
| NVDA | Nvidia Corp | +483 | 16,961 | $2,957,998 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced
19 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| LIN | Linde PLC | −7,859 | 15,863 | $7,864,240 | |
| LMT | Lockheed Martin Corp | −6,715 | 19,045 | $11,510,607 | |
| MSFT | Microsoft Corp | −2,797 | 12,459 | $4,611,948 | |
| GOOGL | Alphabet Inc. | −877 | 9,665 | $2,779,267 | |
| MU | Micron Technology Inc | −735 | 1,048 | $354,056 | |
| RSG | Republic Services, Inc. | −645 | 1,070 | $234,351 | |
| AMZN | Amazon Com Inc | −630 | 8,450 | $1,759,881 | |
| MCD | Mcdonalds Corp | −617 | 3,336 | $1,036,795 | |
| PGR | Progressive Corp/Oh/ | −461 | 1,275 | $252,756 | |
| SCHW | Schwab Charles Corp | −315 | 2,175 | $204,406 | |
| VLTO | Veralto Corp | −294 | 2,323 | $205,399 | |
| ABBV | AbbVie Inc. | −256 | 8,055 | $1,751,881 | |
| COST | Costco Wholesale Corp /New | −117 | 1,479 | $1,473,719 | |
| GE | General Electric Co | −79 | 1,539 | $436,722 | |
| INTU | Intuit Inc. | −70 | 478 | $206,677 | |
| TSM | Taiwan Semiconductor Manufacturing Co Ltd | −68 | 1,290 | $435,955 | |
| CDNS | Cadence Design Systems Inc | −60 | 809 | $224,796 | |
| MPWR | Monolithic Power Systems Inc | −47 | 237 | $259,123 | |
| SOLV | Solventum Corp | −13 | 8,214 | $536,374 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
5 positions
Sold Out
Positions the filer fully exited
13 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| PH | Parker-Hannifin Corp | 696 | $611,756 | |
| CLX | Clorox Co /De/ | 6,000 | $604,980 | |
| CTVA | Corteva, Inc. | 7,898 | $529,402 | |
| TT | Trane Technologies plc | 1,062 | $413,330 | |
| TJX | Tjx Companies Inc /De/ | 2,303 | $353,763 | |
| META | Meta Platforms, Inc. | 379 | $250,174 | |
| ICE | Intercontinental Exchange, Inc. | 1,487 | $240,834 | |
| GD | General Dynamics Corp | 708 | $238,355 | |
| NOW | ServiceNow, Inc. | 1,537 | $235,453 | |
| WST | West Pharmaceutical Services Inc | 851 | $234,144 | |
| MCK | Mckesson Corp | 262 | $214,915 | |
| UNH | Unitedhealth Group Inc | 637 | $210,280 | |
| TMC | TMC the metals Co Inc. | 10,500 | $64,785 | |
| No positions match the current search. | ||||
71 positions ·
$120,900,201 total
· as of Mar 31, 2026
All sectors
Basic Materials
Communication Services
Consumer Cyclical
Consumer Defensive
Energy
Financial Services
Healthcare
Industrials
Technology
Utilities
Showing 1–50
of 71 positions by value
· page 1 of 2
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| MMM |
3M Co
Industrials
|
Added | 99,152 | $14,399,844 | 11.91% | |
| LMT |
Lockheed Martin Corp
Industrials
|
Reduced | 19,045 | $11,510,607 | 9.52% | |
| SPY |
Spdr S&P 500 ETF Trust
|
Added | 12,387 | $8,055,761 | 6.66% | |
| LIN |
Linde PLC
Basic Materials
|
Reduced | 15,863 | $7,864,240 | 6.50% | |
| AAPL |
Apple Inc.
Technology
|
Added | 23,510 | $5,966,602 | 4.94% | |
| MSFT |
Microsoft Corp
Technology
|
Reduced | 12,459 | $4,611,948 | 3.81% | |
| GLD |
Spdr Gold Trust
|
Added | 9,391 | $4,040,853 | 3.34% | |
| NVDA |
Nvidia Corp
Technology
|
Added | 16,961 | $2,957,998 | 2.45% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
Added | 9,748 | $2,867,471 | 2.37% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 9,665 | $2,779,267 | 2.30% | |
| CAT |
Caterpillar Inc
Industrials
|
Added | 3,359 | $2,379,717 | 1.97% | |
| AVGO |
Broadcom Inc.
Technology
|
Added | 6,820 | $2,110,858 | 1.75% | |
| JNJ |
Johnson & Johnson
Healthcare
|
Added | 7,778 | $1,901,254 | 1.57% | |
| V |
Visa Inc.
Financial Services
|
Added | 5,906 | $1,785,029 | 1.48% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Reduced | 8,450 | $1,759,881 | 1.46% | |
| ABBV |
AbbVie Inc.
Healthcare
|
Reduced | 8,055 | $1,751,881 | 1.45% | |
| GS |
Goldman Sachs Group Inc
Financial Services
|
Added | 1,887 | $1,596,383 | 1.32% | |
| CSCO |
Cisco Systems, Inc.
Technology
|
Added | 20,198 | $1,567,162 | 1.30% | |
| BMY |
Bristol Myers Squibb Co
Healthcare
|
Added | 25,726 | $1,560,281 | 1.29% | |
| LLY |
ELI LILLY & Co
Healthcare
|
Added | 1,671 | $1,536,935 | 1.27% | |
| ECL |
Ecolab Inc.
Basic Materials
|
Added | 5,655 | $1,504,343 | 1.24% | |
| COST |
Costco Wholesale Corp /New
Consumer Defensive
|
Reduced | 1,479 | $1,473,719 | 1.22% | |
| USB |
US Bancorp De
Financial Services
|
Added | 27,816 | $1,446,710 | 1.20% | |
| WMT |
Walmart Inc.
Consumer Defensive
|
Added | 11,554 | $1,435,931 | 1.19% | |
| DUK |
Duke Energy CORP
Utilities
|
Added | 10,767 | $1,409,830 | 1.17% | |
| WM |
Waste Management Inc
Industrials
|
Added | 5,950 | $1,367,250 | 1.13% | |
| HD |
Home Depot, Inc.
Consumer Cyclical
|
Added | 4,053 | $1,332,991 | 1.10% | |
| INTC |
Intel Corp
Technology
|
Added | 29,772 | $1,313,838 | 1.09% | |
| AMGN |
Amgen Inc
Healthcare
|
Added | 3,637 | $1,279,678 | 1.06% | |
| MRK |
Merck & Co., Inc.
Healthcare
|
Added | 10,498 | $1,262,804 | 1.04% | |
| MA |
Mastercard Inc
Financial Services
|
Added | 2,480 | $1,239,156 | 1.02% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Added | 2,552 | $1,222,918 | 1.01% | |
| BAC |
Bank Of America Corp /De/
Financial Services
|
Added | 24,638 | $1,201,102 | 0.99% | |
| ORCL |
Oracle Corp
Technology
|
Added | 8,119 | $1,194,386 | 0.99% | |
| CVX |
Chevron Corp
Energy
|
Added | 5,673 | $1,173,743 | 0.97% | |
| MCD |
Mcdonalds Corp
Consumer Cyclical
|
Reduced | 3,336 | $1,036,795 | 0.86% | |
| ABT |
Abbott Laboratories
Healthcare
|
Added | 9,924 | $1,018,897 | 0.84% | |
| PFE |
Pfizer Inc
Healthcare
|
Added | 32,794 | $920,855 | 0.76% | |
| KO |
Coca Cola Co
Consumer Defensive
|
Added | 12,036 | $915,337 | 0.76% | |
| MDT |
Medtronic plc
Healthcare
|
Added | 10,313 | $893,621 | 0.74% | |
| HON |
Honeywell International Inc
Industrials
|
Added | 3,723 | $882,548 | 0.73% | |
| ADP |
Automatic Data Processing Inc
Technology
|
Added | 4,290 | $871,642 | 0.72% | |
| VZ |
Verizon Communications Inc
Communication Services
|
NEW | 16,822 | $844,464 | 0.70% | |
| PG |
PROCTER & GAMBLE Co
Consumer Defensive
|
Added | 5,769 | $833,274 | 0.69% | |
| FDX |
Fedex Corp
Industrials
|
Added | 2,688 | $771,484 | 0.64% | |
| XEL |
Xcel Energy Inc
Utilities
|
Added | 9,585 | $761,432 | 0.63% | |
| DIS |
Walt Disney Co
Communication Services
|
Added | 7,742 | $746,173 | 0.62% | |
| UPS |
United Parcel Service Inc
Industrials
|
NEW | 7,347 | $722,797 | 0.60% | |
| SOLV |
Solventum Corp
Healthcare
|
Reduced | 8,214 | $536,374 | 0.44% | |
| GE |
General Electric Co
Industrials
|
Reduced | 1,539 | $436,722 | 0.36% |