Corundum Trust Company, INC
CIK 0001987720
Annualised vol
8.20016%
Beta
0.351429
HHI
757.188513
Top-10 weight
74.418206%
VaR 95%
0.761682%
VaR 99%
1.485326%
Max drawdown
13.703009%
Matched value
42.634504%
Returns of reported holdings
Loading returns…
Position changes vs prior quarter
What the latest 13F shows bought and sold against the quarter before, by share count.
| Ticker | Change | Shares now | Shares before | Share change % | Value now ($) |
|---|---|---|---|---|---|
| MMM | UNCHANGED | 39,280 | 39,280 | 0.0% | 6,359,825 |
| AAPL | UNCHANGED | 6,512 | 6,512 | 0.0% | 1,884,312 |
| MSFT | UNCHANGED | 4,823 | 4,823 | 0.0% | 1,799,075 |
| LLY | UNCHANGED | 1,095 | 1,095 | 0.0% | 1,313,376 |
| CSCO | UNCHANGED | 7,756 | 7,756 | 0.0% | 911,020 |
| JPM | UNCHANGED | 2,476 | 2,476 | 0.0% | 810,469 |
| UNH | UNCHANGED | 1,499 | 1,499 | 0.0% | 623,029 |
| C | UNCHANGED | 3,315 | 3,315 | 0.0% | 463,967 |
| AMZN | UNCHANGED | 1,703 | 1,703 | 0.0% | 405,893 |
| UNP | UNCHANGED | 1,382 | 1,382 | 0.0% | 375,904 |
| BRK-B | UNCHANGED | 653 | 653 | 0.0% | 326,755 |
| TMO | UNCHANGED | 500 | 500 | 0.0% | 250,680 |
| MRK | UNCHANGED | 1,824 | 1,824 | 0.0% | 234,384 |
| BA | NEW | 958 | - | - | 207,378 |
| SKE | CLOSED OUT | 0 | 55,250 | -100.0% | 0 |
| AYA | CLOSED OUT | 0 | 40,000 | -100.0% | 0 |
| NGXXF | CLOSED OUT | 0 | 32,500 | -100.0% | 0 |
| AG | CLOSED OUT | 0 | 12,000 | -100.0% | 0 |
| KGC | CLOSED OUT | 0 | 10,000 | -100.0% | 0 |
| AEM | CLOSED OUT | 0 | 2,000 | -100.0% | 0 |
| FNV | CLOSED OUT | 0 | 2,000 | -100.0% | 0 |
Holdings (latest quarter)
| Ticker | Change | Issuer | Class | CUSIP | Value ($) | Weight % | Shares |
|---|---|---|---|---|---|---|---|
| MMM | UNCHANGED | 3M COMPANY | CS | 88579y101 | 6,359,825 | 16.98 | 39280.0 |
| - | ISHARES CORE S&P SMALL CAP ETF | CS | 464287804 | 4,641,361 | 12.39 | 31295.0 | |
| - | ISHARES SELECT DIVIDEND ETF | CS | 464287168 | 2,944,692 | 7.86 | 18840.0 | |
| - | ISHARES S&P MID CAP 400 GROWTH | CS | 464287606 | 2,626,595 | 7.01 | 22354.0 | |
| - | ISHARES CORE S&P 500 ETF | CS | 464287200 | 2,475,830 | 6.61 | 3306.0 | |
| - | ISHARES S&P MID CAP 400 VALUE | CS | 464287705 | 1,945,013 | 5.19 | 13166.0 | |
| AAPL | UNCHANGED | APPLE INC | CS | 037833100 | 1,884,312 | 5.03 | 6512.0 |
| - | ALPHABET INC CLASS C CAPITAL S | CS | 02079k107 | 1,877,242 | 5.01 | 5313.0 | |
| MSFT | UNCHANGED | MICROSOFT CORP | CS | 594918104 | 1,799,075 | 4.8 | 4823.0 |
| - | ISHARES MSCI EAFE ETF | CS | 464287465 | 1,314,705 | 3.51 | 12656.0 | |
| LLY | UNCHANGED | ELI LILLY & CO | CS | 532457108 | 1,313,376 | 3.51 | 1095.0 |
| - | STATE STREET SPDR S&P 500 ETF | CS | 78462f103 | 920,767 | 2.46 | 1233.0 | |
| CSCO | UNCHANGED | CISCO SYSTEMS INC | CS | 17275r102 | 911,020 | 2.43 | 7756.0 |
| JPM | UNCHANGED | JPMORGAN CHASE & CO | CS | 46625h100 | 810,469 | 2.16 | 2476.0 |
| - | SOLVENTUM CORPORATION COMMON S | CS | 83444m101 | 758,462 | 2.03 | 9831.0 | |
| - | VANGUARD RUSSELL 3000 ETF | CS | 92206c599 | 627,058 | 1.67 | 1892.0 | |
| UNH | UNCHANGED | UNITEDHEALTH GROUP INC | CS | 91324p102 | 623,029 | 1.66 | 1499.0 |
| C | UNCHANGED | CITIGROUP INC COM | CS | 172967424 | 463,967 | 1.24 | 3315.0 |
| - | ISHARES S&P 500 GROWTH ETF | CS | 464287309 | 427,718 | 1.14 | 3110.0 | |
| AMZN | UNCHANGED | AMAZON.COM INC | CS | 023135106 | 405,893 | 1.08 | 1703.0 |
| UNP | UNCHANGED | UNION PACIFIC CORP | CS | 907818108 | 375,904 | 1.0 | 1382.0 |
| - | UGI CORPORATION | CS | 902681105 | 337,559 | 0.9 | 9773.0 | |
| - | ISHARES MSCI EMERGING MARKETS | CS | 464287234 | 329,052 | 0.88 | 4810.0 | |
| BRK-B | UNCHANGED | BERKSHIRE HATHAWAY CLASS B | CS | 084670702 | 326,755 | 0.87 | 653.0 |
| - | ISHARES S&P 500 VALUE ETF | CS | 464287408 | 256,578 | 0.69 | 1130.0 | |
| TMO | UNCHANGED | THERMO FISHER SCIENTIFIC INC | CS | 883556102 | 250,680 | 0.67 | 500.0 |
| MRK | UNCHANGED | MERCK & CO INC | CS | 58933y105 | 234,384 | 0.63 | 1824.0 |
| BA | NEW | BOEING CO | CS | 097023105 | 207,378 | 0.55 | 958.0 |
Quarterly portfolios
| Period | Filed | Value ($) | Positions | Vol % | Beta | Max DD % |
|---|---|---|---|---|---|---|
| 2026-06-30 | 2026-07-29 | 37,448,699 | 28 | 8.20016 | 0.351429 | 13.703009 |
| 2026-03-31 | 2026-04-15 | 43,794,214 | 48 | 6.539099 | 0.268546 | 9.887236 |
| 2025-12-31 | 2026-01-20 | 43,927,571 | 51 | 7.215727 | 0.30345 | 10.970099 |
| 2025-09-30 | 2025-10-24 | 46,101,854 | 127 | 7.531784 | 0.329115 | 12.113818 |
| 2025-03-31 | 2025-04-24 | 34,697,973 | 50 | 8.204117 | 0.351925 | 13.159475 |
| 2024-12-31 | 2025-01-17 | 33,307,960 | 49 | 8.380563 | 0.371644 | 13.004506 |