Corundum Trust Company, INC
BankClone Performance
Aug 2023–Jul 2026 · vs SPYHypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.
Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 10 quarters. Past performance does not predict future results.
Portfolio Concentration
25 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Portfolio Trend
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Industrials | 31.0% | $6,039,934 |
| Technology | 20.7% | $4,039,797 |
| Basic Materials | 20.3% | $3,960,975 |
| Healthcare | 12.9% | $2,519,899 |
| Financial Services | 7.3% | $1,417,211 |
| Unclassified | 4.1% | $801,218 |
| Utilities | 1.8% | $355,932 |
| Consumer Cyclical | 1.8% | $354,683 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | +570 | 1,232 | $801,218 | |
| AAPL | Apple Inc. | +323 | 6,512 | $1,652,680 | |
| MMM | 3M Co | +125 | 39,280 | $5,704,634 | |
| CSCO | Cisco Systems, Inc. | +104 | 7,756 | $601,788 | |
| JPM | Jpmorgan Chase & Co | +34 | 2,476 | $728,340 | |
| AMZN | Amazon Com Inc | +31 | 1,703 | $354,683 | |
| MSFT | Microsoft Corp | +29 | 4,823 | $1,785,329 | |
| LLY | ELI LILLY & Co | +19 | 1,095 | $1,007,148 | |
| BRK-B | Berkshire Hathaway Inc | +15 | 653 | $312,917 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| SKE | Skeena Resources Ltd | −8,500 | 55,250 | $1,642,030 | |
| No positions match the current search. | |||||
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| MMM |
3M Co
Industrials
|
Added | 39,280 | $5,704,634 | 29.27% | |
| MSFT |
Microsoft Corp
Technology
|
Added | 4,823 | $1,785,329 | 9.16% | |
| AAPL |
Apple Inc.
Technology
|
Added | 6,512 | $1,652,680 | 8.48% | |
| SKE |
Skeena Resources Ltd
Basic Materials
|
Reduced | 55,250 | $1,642,030 | 8.43% | |
| LLY |
ELI LILLY & Co
Healthcare
|
Added | 1,095 | $1,007,148 | 5.17% | |
| SPY |
Spdr S&P 500 ETF Trust
|
Added | 1,232 | $801,218 | 4.11% | |
| JPM |
Jpmorgan Chase & Co
Financial Services
|
Added | 2,476 | $728,340 | 3.74% | |
| SOLV |
Solventum Corp
Healthcare
|
Held | 9,831 | $641,964 | 3.29% | |
| CSCO |
Cisco Systems, Inc.
Technology
|
Added | 7,756 | $601,788 | 3.09% | |
| FNV |
FRANCO NEVADA Corp
Basic Materials
|
Held | 2,000 | $494,100 | 2.54% | |
| NEM |
NEWMONT Corp /DE/
Basic Materials
|
Held | 4,000 | $433,000 | 2.22% | |
| AEM |
Agnico Eagle Mines Ltd
Basic Materials
|
Held | 2,000 | $405,960 | 2.08% | |
| UNH |
Unitedhealth Group Inc
Healthcare
|
Held | 1,499 | $405,614 | 2.08% | |
| C |
Citigroup Inc
Financial Services
|
Held | 3,315 | $375,954 | 1.93% | |
| UGI |
Ugi Corp /Pa/
Utilities
|
NEW | 9,773 | $355,932 | 1.83% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Added | 1,703 | $354,683 | 1.82% | |
| UNP |
Union Pacific Corp
Industrials
|
Held | 1,382 | $335,300 | 1.72% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Added | 653 | $312,917 | 1.61% | |
| KGC |
Kinross Gold Corp
Basic Materials
|
Held | 10,000 | $305,200 | 1.57% | |
| AG |
First Majestic Silver Corp
Basic Materials
|
Held | 12,000 | $257,760 | 1.32% | |
| TMO |
Thermo Fisher Scientific Inc.
Healthcare
|
Held | 500 | $245,765 | 1.26% | |
| VZLA |
Vizsla Silver Corp.
Basic Materials
|
Held | 70,250 | $231,825 | 1.19% | |
| MRK |
Merck & Co., Inc.
Healthcare
|
NEW | 1,824 | $219,408 | 1.13% | |
| SXGCF |
Southern Cross Gold Consolidated Ltd.
Basic Materials
|
Held | 30,000 | $191,100 | 0.98% | |
| AYA |
Aya Gold & Silver Inc.
Basic Materials
|
Held | 40,000 | $0 | 0.00% |
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.