Corundum Trust Company, INC
In its 13F for Q2 2026 (holdings as of June 30, 2026, filed July 29, 2026), Corundum Trust Company, INC reported 28 stock positions worth $37.4 million. Its top holding was 3M (MMM) at 17.0% of the portfolio, followed by iShares Core S&P Small-Cap E (IJR, 12.4%) and iShares Select Dividend ETF (DVY, 7.9%). Compared with Q1 2026, it opened 1 new position, sold out of 21, added to 2 and reduced 3. The biggest buy was iShares MSCI Eafe ETF (EFA, shares +0%) and the biggest sale an exit from Skeena Resources (SKE).
- Most Recent 13F
- Q2 2026
- Location
- SIOUX FALLS, SD
- CIK
- 0001987720
- Portfolio Value
- $37.4M (Q2 2026)
- SEC Filing
- 0001987720-26-000003 ↗ filed Jul 29, 2026
Holdings Value
Holdings 28 stocks · $37.4M
| MMM 3M Co. | 16.98% | 39,280 | $6.4M | No change |
| IJR iShares Core S&P Small-Cap E | 12.39% | 31,295 | $4.6M | Reduce -0.7% |
| DVY iShares Select Dividend ETF | 7.86% | 18,840 | $2.9M | Reduce -0.2% |
| IJK iShares S&P Mid-Cap 400 Grow | 7.01% | 22,354 | $2.6M | No change |
| IVV iShares Core S&P 500 ETF | 6.61% | 3,306 | $2.5M | No change |
| IJJ iShares S&P Mid-Cap 400 Valu | 5.19% | 13,166 | $1.9M | No change |
| AAPL Apple Inc. | 5.03% | 6,512 | $1.9M | No change |
| GOOG Alphabet Inc. Class C | 5.01% | 5,313 | $1.9M | Reduce -0.2% |
| MSFT Microsoft Corp. | 4.80% | 4,823 | $1.8M | No change |
| EFA iShares MSCI Eafe ETF | 3.51% | 12,656 | $1.3M | Add +0.0% |
| LLY Eli Lilly & Co. | 3.51% | 1,095 | $1.3M | No change |
| SPY SS SPDR S&P 500 ETF Trust-US | 2.46% | 1,233 | $921K | Add +0.1% |
| CSCO Cisco Systems Inc. | 2.43% | 7,756 | $911K | No change |
| JPM JPMorgan Chase & Co. | 2.16% | 2,476 | $810K | No change |
| SOLV Solventum Corp. | 2.03% | 9,831 | $758K | No change |
| VTHR Vanguard Russell 3000 | 1.67% | 1,892 | $627K | No change |
| UNH Unitedhealth Group Inc. | 1.66% | 1,499 | $623K | No change |
| C Citigroup Inc. | 1.24% | 3,315 | $464K | No change |
| IVW iShares S&P 500 Growth ETF | 1.14% | 3,110 | $428K | No change |
| AMZN Amazon.com Inc. | 1.08% | 1,703 | $406K | No change |
| UNP Union Pacific Corp. | 1.00% | 1,382 | $376K | No change |
| UGI Ugi Corp. | 0.90% | 9,773 | $338K | No change |
| EEM iShares MSCI Emerging Market | 0.88% | 4,810 | $329K | No change |
| BRK.B Berkshire Hathaway Inc. Class B | 0.87% | 653 | $327K | No change |
| IVE iShares S&P 500 Value ETF | 0.69% | 1,130 | $257K | No change |
| TMO Thermo Fisher Scientific Inc. | 0.67% | 500 | $251K | No change |
| MRK Merck & Co. Inc. | 0.63% | 1,824 | $234K | No change |
| BA The Boeing Co. | 0.55% | 958 | $207K | New |
Portfolio Sells Q1 2026 → Q2 2026
| SKE Skeena Resources Ltd. | Sold out | 0.00% | −3.75 |
| DiscoverySilverCorp | Sold out | 0.00% | −3.62 |
| GGPSF Greatland Resources Ltd. | Sold out | 0.00% | −2.55 |
| LUGDF Lundin Gold Inc. | Sold out | 0.00% | −1.91 |
| WDOFF Wesdome Gold Mines Ltd. | Sold out | 0.00% | −1.55 |
| AYA Aya Gold & Silver Inc. | Sold out | 0.00% | −1.40 |
| NGXXF Ngex Minerals Ltd. | Sold out | 0.00% | −1.34 |
| IUNSF iShares S&P/TSX Capped Energ | Sold out | 0.00% | −1.25 |
| FNV Franco-Nevada Corp. | Sold out | 0.00% | −1.13 |
| NEM Newmont Corp. | Sold out | 0.00% | −0.99 |
| AEM Agnico Eagle Mines Ltd. | Sold out | 0.00% | −0.93 |
| KGC Kinross Gold Corp. | Sold out | 0.00% | −0.70 |
| SNWGF Snowline Gold Corp. | Sold out | 0.00% | −0.61 |
| CAHPF Evolution Mining Ltd. | Sold out | 0.00% | −0.60 |
| AG First Majestic Silver Corp. | Sold out | 0.00% | −0.59 |
| GMINF G Mining Venture Corp. | Sold out | 0.00% | −0.56 |
| VZLA Vizsla Silver Corp. | Sold out | 0.00% | −0.53 |
| NESRF Northern Star Resources Ltd. | Sold out | 0.00% | −0.45 |
| SXGCF Southern Cross Gold Consolid | Sold out | 0.00% | −0.42 |
| RUPRF Rupert Resources Ltd. | Sold out | 0.00% | −0.35 |
| OGNNF Orogen Royalties Inc. | Sold out | 0.00% | −0.30 |
| DVY iShares Select Dividend ETF | Reduce -0.2% | 7.86% | +1.34 |
| GOOG Alphabet Inc. Class C | Reduce -0.2% | 5.01% | +1.52 |
| IJR iShares Core S&P Small-Cap E | Reduce -0.7% | 12.39% | +3.45 |
Portfolio Buys Q1 2026 → Q2 2026
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 28 | $37.4M | MMM, IJR, DVY, IJK, IVV |
| Q1 2026 | 48 | $43.8M | MMM, IJR, DVY, IJK, IVV |
| Q4 2025 | 51 | $43.9M | MMM, IJR, DVY, MSFT, IJK |
| Q3 2025 | 127 | $46.1M | MMM, IJR, DVY, MSFT, IJK |
| Q2 2025 | 50 | $37.9M | MMM, IJR, DVY, MSFT, IJK |
| Q1 2025 | 50 | $34.7M | MMM, IJR, DVY, MSFT, IJK |
| Q4 2024 | 49 | $33.3M | MMM, IJR, DVY, MSFT, IJK |
| Q3 2024 | 52 | $36.3M | MMM, IJR, DVY, MSFT, IJK |
| Q2 2024 | 55 | $34.4M | MMM, IJR, MSFT, AAPL, DVY |