Corundum Group, Inc.
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$299.2M
Q ending 2026-03-31
Prior quarter
$298.0M
Q ending 2025-12-31
Change
+0.4% QoQ · +43.5% YoY
Positions
108
reported holdings
Largest positions
Top 100 of 108 reported positions by value, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Ishares Russell 1000 Growth Et | IWF | Shares | $36.4M | 85K |
| Ishares Russell 1000 Value Etf | IWD | Shares | $35.4M | 166K |
| Ishares Msci Eafe Etf | EFA | Shares | $15.8M | 162K |
| 3M Company | Shares | $14.4M | 99K | |
| Lockheed Martin Corp | LMT | Shares | $11.5M | 19K |
| Ishares Russell 2000 Growth Et | IWO | Shares | $11.1M | 35K |
| Ishares Russell 2000 Value Etf | IWN | Shares | $10.1M | 54K |
| Ishares Russell Mid Cap Value | IWS | Shares | $10.0M | 69K |
| Ishares Russell Mid Cap Growth | IWP | Shares | $9.7M | 75K |
| State Street Spdr S&P 500 Etf | Shares | $8.1M | 12K | |
| Linde Plc Ordinary Shares | Shares | $7.9M | 16K | |
| Ishares Trust Ishares Esg Opti | SUSA | Shares | $6.6M | 50K |
| Apple Inc | AAPL | Shares | $6.0M | 24K |
| Microsoft Corp | MSFT | Shares | $4.6M | 12K |
| Vanguard Russell 1000 Value Et | Shares | $4.4M | 47K | |
| Spdr Gold Shares Etf | Shares | $4.0M | 9K | |
| Ishares Russell 1000 Etf | IWB | Shares | $3.8M | 11K |
| Invesco Exchange Traded Fd Tr | Shares | $3.4M | 46K | |
| Ishares Russell 2000 Etf | IWM | Shares | $3.4M | 14K |
| Exxon Mobil Corp | Shares | $3.2M | 19K | |
| Nvidia Corp | Shares | $3.0M | 17K | |
| Jpmorgan Chase & Co | Shares | $2.9M | 10K | |
| Alphabet Inc Class A Common St | Shares | $2.8M | 10K | |
| Alphabet Inc Class C Capital S | Shares | $2.6M | 9K | |
| Spdr Series Trust State Street | Shares | $2.6M | 34K | |
| First Trust Global Tactical Co | Shares | $2.4M | 83K | |
| Select Sector Spdr Trust State | Shares | $2.4M | 52K | |
| Caterpillar Inc | CAT | Shares | $2.4M | 3K |
| Vanguard S&P 500 Etf | VOO | Shares | $2.4M | 4K |
| Ishares S&P 500 Growth Etf | IVW | Shares | $2.3M | 21K |
| Broadcom Inc Common Stock | Shares | $2.1M | 7K | |
| Nushares Etf Tr Small Cap Etf | Shares | $2.0M | 45K | |
| Johnson & Johnson Common Stock | JNJ | Shares | $1.9M | 8K |
| Ishares Core S&P Mid Cap Etf | IJH | Shares | $1.9M | 28K |
| Visa Inc Cl A Common Stock | Shares | $1.8M | 6K | |
| Amazon.Com Inc | AMZN | Shares | $1.8M | 8K |
| Abbvie Inc | Shares | $1.8M | 8K | |
| Goldman Sachs Group Inc | Shares | $1.6M | 2K | |
| Cisco Systems Inc | Shares | $1.6M | 20K | |
| Bristol Myers Squibb Co | BMY | Shares | $1.6M | 26K |
| Eli Lilly & Co | LLY | Shares | $1.5M | 2K |
| Ecolab Inc | ECL | Shares | $1.5M | 6K |
| Costco Wholesale Corp-New | Shares | $1.5M | 1K | |
| Us Bancorp Del Com | USB | Shares | $1.4M | 28K |
| Walmart Inc Common Stock | WMT | Shares | $1.4M | 12K |
| Duke Energy Corporation Holdin | Shares | $1.4M | 11K | |
| Waste Management Inc Del | Shares | $1.4M | 6K | |
| Home Depot Inc | HD | Shares | $1.3M | 4K |
| Intel Corp | INTC | Shares | $1.3M | 30K |
| Amgen Inc | AMGN | Shares | $1.3M | 4K |
| Merck & Co Inc | Shares | $1.3M | 10K | |
| Ishares S&P 500 Value Etf | IVE | Shares | $1.3M | 6K |
| Mastercard Incorporated | Shares | $1.2M | 2K | |
| Berkshire Hathaway Class B | BRK/B | Shares | $1.2M | 3K |
| Bank Of America Corp | BAC | Shares | $1.2M | 25K |
| Oracle Corporation | Shares | $1.2M | 8K | |
| Chevron Corporation | CVX | Shares | $1.2M | 6K |
| Mcdonalds Corp | MCD | Shares | $1.0M | 3K |
| Abbott Laboratories | ABT | Shares | $1.0M | 10K |
| Fedex Corp | Shares | $957K | 3K | |
| Pfizer Inc | PFE | Shares | $921K | 33K |
| Coca Cola Company (The) | KO | Shares | $915K | 12K |
| Ishares Core S&P Small Cap Etf | IJR | Shares | $912K | 7K |
| Medtronic Plc Com | Shares | $894K | 10K | |
| Automatic Data Processing Inc | ADP | Shares | $872K | 4K |
| Verizon Communications | Shares | $844K | 17K | |
| Honeywell Intl Inc | HONGBP | Shares | $842K | 4K |
| Procter & Gamble Co | PG | Shares | $833K | 6K |
| Xcel Energy Inc Common Stock | Shares | $761K | 10K | |
| Walt Disney Co | DIS | Shares | $746K | 8K |
| United Parcel Svc Inc Cl B | UPS | Shares | $723K | 7K |
| Ishares S&P Mid Cap 400 Growth | IJK | Shares | $704K | 7K |
| Solventum Corporation Common S | Shares | $536K | 8K | |
| Legg Mason Etf Invt Tr Clearbr | LRGE | Shares | $480K | 6K |
| Ge Aerospace Common Stock | GE | Shares | $437K | 2K |
| Taiwan Semiconductor Mfg Co Lt | TSM | Shares | $436K | 1K |
| Texas Instruments Incorporated | TXN | Shares | $423K | 2K |
| Invesco Qqq Tr Unit Ser 1 | Shares | $407K | 706 | |
| Dimensional Etf Trust Dimensio | Shares | $380K | 6K | |
| Tractor Supply Co | TSCO | Shares | $359K | 8K |
| Arista Networks Inc Common Sto | ANET | Shares | $358K | 3K |
| Micron Technology Inc | MU | Shares | $354K | 1K |
| Dbx Etf Trust Xtrackers S&P 50 | SNPE | Shares | $345K | 6K |
| Nuveen Esg International Devel | Shares | $303K | 8K | |
| Danaher Corporation | DHR | Shares | $298K | 2K |
| Dimensional Etf Trust Dimensio | Shares | $287K | 4K | |
| Intuitive Surgical Inc Com | Shares | $263K | 571 | |
| Monolithic Power Sys Inc | MPWR | Shares | $259K | 237 |
| Progressive Corp-Ohio | PGR | Shares | $253K | 1K |
| Vanguard Bd Index Fds Vanguard | Shares | $252K | 5K | |
| Ishares Trust Ishares Msci Usa | Shares | $249K | 1K | |
| Ishares Trust Ishares 0 3 Mont | Shares | $242K | 2K | |
| Gallagher Arthur J & Co | AJG | Shares | $239K | 1K |
| Vanguard Index Funds Vanguard | VUG | Shares | $239K | 547 |
| Vanguard Index Funds Vanguard | VO | Shares | $238K | 830 |
| Spotify Technology S A Shs Spo | Shares | $236K | 487 | |
| Republic Services Inc | RSG | Shares | $234K | 1K |
| Cadence Design Systems Inc | CDNS | Shares | $225K | 809 |
| Uber Technologies Inc Common S | Shares | $224K | 3K | |
| Kkr & Co Inc Common Stock | Shares | $223K | 2K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.