# Corundum Trust Company, INC

> Institutional holdings reported to the SEC as of Q2 2026 on Form 13F. CIK 1987720. Source: https://holderbook.com/funds/1987720-corundum-trust-company-inc/

- Reported value: $37.4M
- Positions: 28
- Weight of the ten largest: 74.4%
- Filed: 2026-07-29

A 13F reports long US equity positions only. Short positions, bonds, foreign listings, private holdings and cash are not visible, so this is not the manager's whole book.

## Holdings

| Security | Ticker | Value | Shares | Weight | Quarters held |
|---|---|---|---|---|---|
| 3M CO | [MMM](https://holderbook.com/stocks/MMM/) | $6.4M | 39,280 | 17.0% | 11 |
| ISHARES TR | [IJR](https://holderbook.com/stocks/IJR/) | $4.6M | 31,295 | 12.4% | 11 |
| ISHARES TR | [DVY](https://holderbook.com/stocks/DVY/) | $2.9M | 18,840 | 7.9% | 11 |
| ISHARES TR | [IJK](https://holderbook.com/stocks/IJK/) | $2.6M | 22,354 | 7.0% | 11 |
| ISHARES TR | [IVV](https://holderbook.com/stocks/IVV/) | $2.5M | 3,306 | 6.6% | 11 |
| ISHARES TR | [IJJ](https://holderbook.com/stocks/IJJ/) | $1.9M | 13,166 | 5.2% | 11 |
| APPLE INC | [AAPL](https://holderbook.com/stocks/AAPL/) | $1.9M | 6,512 | 5.0% | 11 |
| ALPHABET INC | [GOOG](https://holderbook.com/stocks/GOOG/) | $1.9M | 5,313 | 5.0% | 11 |
| MICROSOFT CORP | [MSFT](https://holderbook.com/stocks/MSFT/) | $1.8M | 4,823 | 4.8% | 11 |
| ISHARES TR | [EFA](https://holderbook.com/stocks/EFA/) | $1.3M | 12,656 | 3.5% | 11 |
| ELI LILLY & CO | [LLY](https://holderbook.com/stocks/LLY/) | $1.3M | 1,095 | 3.5% | 11 |
| STATE STR SPDR S&P 500 ETF T | [SPY](https://holderbook.com/stocks/SPY/) | $920.8K | 1,233 | 2.5% | 11 |
| CISCO SYS INC | [CSCO](https://holderbook.com/stocks/CSCO/) | $911.0K | 7,756 | 2.4% | 11 |
| JPMORGAN CHASE & CO | [JPM](https://holderbook.com/stocks/JPM/) | $810.5K | 2,476 | 2.2% | 11 |
| SOLVENTUM CORP | [SOLV](https://holderbook.com/stocks/SOLV/) | $758.5K | 9,831 | 2.0% | 9 |
| VANGUARD SCOTTSDALE FDS | [VTHR](https://holderbook.com/stocks/VTHR/) | $627.1K | 1,892 | 1.7% | 11 |
| UNITEDHEALTH GROUP INC | [UNH](https://holderbook.com/stocks/UNH/) | $623.0K | 1,499 | 1.7% | 11 |
| CITIGROUP INC | [C](https://holderbook.com/stocks/C/) | $464.0K | 3,315 | 1.2% | 9 |
| ISHARES TR | [IVW](https://holderbook.com/stocks/IVW/) | $427.7K | 3,110 | 1.1% | 2 |
| AMAZON COM INC | [AMZN](https://holderbook.com/stocks/AMZN/) | $405.9K | 1,703 | 1.1% | 11 |
| UNION PAC CORP | [UNP](https://holderbook.com/stocks/UNP/) | $375.9K | 1,382 | 1.0% | 11 |
| UGI CORP NEW | [UGI](https://holderbook.com/stocks/UGI/) | $337.6K | 9,773 | 0.9% | 2 |
| ISHARES TR | [EEM](https://holderbook.com/stocks/EEM/) | $329.1K | 4,810 | 0.9% | 9 |
| BERKSHIRE HATHAWAY INC DEL | [BRKB](https://holderbook.com/stocks/BRKB/) | $326.8K | 653 | 0.9% | 11 |
| ISHARES TR | [IVE](https://holderbook.com/stocks/IVE/) | $256.6K | 1,130 | 0.7% | 2 |
| THERMO FISHER SCIENTIFIC INC | [TMO](https://holderbook.com/stocks/TMO/) | $250.7K | 500 | 0.7% | 11 |
| MERCK & CO INC | [MRK](https://holderbook.com/stocks/MRK/) | $234.4K | 1,824 | 0.6% | 2 |
| BOEING CO | [BA](https://holderbook.com/stocks/BA/) | $207.4K | 958 | 0.6% | 1 |

## What the disclosed book did

Not the fund's return. This is the change in value of the positions disclosed on Form 13F, had they been left untouched, against SPY over the same quarter ends.

| Quarter | Book | Market | Difference | Priced |
|---|---|---|---|---|
| Q2 2026 | +11.4% | +14.8% | -3.5% | 83% |
| Q1 2026 | -3.3% | -4.6% | +1.3% | 83% |
| Q4 2025 | +5.7% | +2.4% | +3.4% | 88% |
| Q3 2025 | +8.6% | +7.8% | +0.8% | 87% |
| Q2 2025 | +6.8% | +10.5% | -3.6% | 91% |
| Q1 2025 | +0.0% | -4.6% | +4.6% | 93% |
| Q4 2024 | -1.6% | +2.1% | -3.8% | 93% |
| Q3 2024 | +10.5% | +5.4% | +5.1% | 93% |

## Quarter by quarter

| Quarter | Value | Positions |
|---|---|---|
| Q2 2026 | $37.4M | 28 |
| Q1 2026 | $43.8M | 48 |
| Q4 2025 | $43.9M | 51 |
| Q3 2025 | $46.1M | 127 |
| Q2 2025 | $37.9M | 50 |
| Q1 2025 | $34.7M | 50 |
| Q4 2024 | $33.3M | 49 |
| Q3 2024 | $36.3M | 52 |
| Q2 2024 | $34.4M | 54 |
| Q3 2023 | $33.5M | 37 |
| Q2 2023 | $36.6M | 39 |