Corundum Trust Company, INC
BankCIK
1987720
Location
SIOUX FALLS, SD
Portfolio Value
Micro
$7,364,897
Diversification
Moderately concentrated
Filing Date
Global Rank
#8,420
/ 8,700
▲ 148
Top Industry
Consumer Electronics
25.6%
Period ended 2 months ago
Filed Jul 29, 2026 · 46d
11 quarters · since Jun 2023
Portfolio Concentration
10 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Top Position
25.6%
−14.1 pts
Top 5
79.7%
+11.0 pts
Top 10
100.0%
+18.7 pts
HHI
1,726
Moderately concentrated−200
Portfolio Trend
11 quarters · across all stocks
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 50.0% | $3,683,387 |
| Healthcare | 21.2% | $1,564,055 |
| Financial Services | 10.7% | $790,721 |
| Industrials | 7.9% | $583,282 |
| Consumer Cyclical | 5.5% | $405,893 |
| Utilities | 4.6% | $337,559 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increasedNo qualifying positions this quarter.
Trimmed
Positions the filer reducedNo qualifying positions this quarter.
New Positions
Positions the filer opened this quarter
1 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| BA | Boeing Co | 958 | $207,378 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
20 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| AAXJ | iShares MSCI All Country Asia ex Japan ETF | 106,091 | $14,745,850 | |
| MMM | 3M Co | 39,280 | $5,704,634 | |
| SKE | Skeena Resources Ltd | 55,250 | $1,642,030 | |
| GOOGL | Alphabet Inc. | 5,325 | $1,527,529 | |
| SPY | Spdr S&P 500 ETF Trust | 1,232 | $801,218 | |
| JPM | Jpmorgan Chase & Co | 2,476 | $728,340 | |
| SOLV | Solventum Corp | 9,831 | $641,964 | |
| AYA | Aya Gold & Silver Inc. | 40,000 | $612,000 | |
| CSCO | Cisco Systems, Inc. | 7,756 | $601,788 | |
| BNDW | Vanguard Total World Bond ETF | 1,892 | $544,082 | |
| FNV | FRANCO NEVADA Corp | 2,000 | $494,100 | |
| NEM | NEWMONT Corp /DE/ | 4,000 | $433,000 | |
| AEM | Agnico Eagle Mines Ltd | 2,000 | $405,960 | |
| UNH | Unitedhealth Group Inc | 1,499 | $405,614 | |
| KGC | Kinross Gold Corp | 10,000 | $305,200 | |
| BKF | iShares MSCI BIC ETF | 4,810 | $273,159 | |
| AG | First Majestic Silver Corp | 12,000 | $257,760 | |
| VZLA | Vizsla Silver Corp. | 70,250 | $231,825 | |
| MRK | Merck & Co., Inc. | 1,824 | $219,408 | |
| SXGCF | Southern Cross Gold Consolidated Ltd. | 30,000 | $191,100 | |
| No positions match the current search. | ||||
10 tracked positions ·
$7,364,897 total
· filing declares
28 positions · $37,448,699
· as of Jun 30, 2026
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| AAPL |
Apple Inc.
Technology
|
Held | 6,512 | $1,884,312 | 25.59% | |
| MSFT |
Microsoft Corp
Technology
|
Held | 4,823 | $1,799,075 | 24.43% | |
| LLY |
ELI LILLY & Co
Healthcare
|
Held | 1,095 | $1,313,375 | 17.83% | |
| C |
Citigroup Inc
Financial Services
|
Held | 3,315 | $463,967 | 6.30% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
Held | 1,703 | $405,893 | 5.51% | |
| UNP |
Union Pacific Corp
Industrials
|
Held | 1,382 | $375,904 | 5.10% | |
| UGI |
Ugi Corp /Pa/
Utilities
|
Held | 9,773 | $337,559 | 4.58% | |
| BRK-B |
Berkshire Hathaway Inc
Financial Services
|
Held | 653 | $326,754 | 4.44% | |
| TMO |
Thermo Fisher Scientific Inc.
Healthcare
|
Held | 500 | $250,680 | 3.40% | |
| BA |
Boeing Co
Industrials
|
NEW | 958 | $207,378 | 2.82% |
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.