Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| Lam Research Corp.COM NEW | COM NEW | $32M | 7.0% |
| Alphabet Inc.CAP STK CL A | CAP STK CL A | $20.2M | 4.4% |
| Amphenol Corp.CL A | CL A | $18.8M | 4.1% |
| Eli Lilly & COCOM | COM | $15.4M | 3.4% |
| Apple Inc.COM | COM | $15M | 3.3% |
| Heico Corp. NewCOM | COM | $14.3M | 3.1% |
| Monolithic Pwr Sys Inc.COM | COM | $14.2M | 3.1% |
| Quanta Svcs Inc.COM | COM | $14.1M | 3.1% |
| Fortinet Inc.COM | COM | $14M | 3.1% |
| Mastercard IncorporatedCL A | CL A | $12.5M | 2.7% |
| Monster Beverage Corp. NewCOM | COM | $12M | 2.6% |
| Nvidia CorporationCOM | COM | $11.3M | 2.5% |
| Ametek Inc.COM | COM | $11.1M | 2.4% |
| Parker-hannifin Corp.COM | COM | $10.9M | 2.4% |
| Thermo Fisher Scientific Inc.COM | COM | $10.5M | 2.3% |
| Microsoft Corp.COM | COM | $10.2M | 2.2% |
| Costco Wholesale CorporationCOM | COM | $10.1M | 2.2% |
| Federal Signal Corp.COM | COM | $9.61M | 2.1% |
| WW Grainger Inc.COM | COM | $9.35M | 2.1% |
| Cadence Design System Inc.COM | COM | $9.35M | 2.1% |
| Oreilly Automotive Inc.COM | COM | $9.31M | 2.0% |
| Idexx Labs Inc.COM | COM | $8.75M | 1.9% |
| Sherwin Williams COCOM | COM | $8.75M | 1.9% |
| Steris PLCSHS USD | SHS USD | $8.44M | 1.9% |
| Linde PLCSHS | SHS | $8.1M | 1.8% |
| Motorola Solutions Inc.COM NEW | COM NEW | $7.92M | 1.7% |
| Aon PLCSHS CL A | SHS CL A | $7.81M | 1.7% |
| Cintas Corp.COM | COM | $7.48M | 1.6% |
| Intuitive Surgical Inc.COM NEW | COM NEW | $7.24M | 1.6% |
| Home Depot Inc.COM | COM | $7.06M | 1.6% |
| Air Products And Chemicals ICOM | COM | $6.89M | 1.5% |
| Arch Cap Group LtdORD | ORD | $6.83M | 1.5% |
| Stryker CorporationCOM | COM | $6.81M | 1.5% |
| S&P Global Inc.COM | COM | $6.66M | 1.5% |
| Illinois Tool Wks Inc.COM | COM | $6.6M | 1.4% |
| Moodys Corp.COM | COM | $6.23M | 1.4% |
| Waste Connections Inc.COM | COM | $5.84M | 1.3% |
| Ingersoll Rand Inc.COM | COM | $5.35M | 1.2% |
| Automatic Data Processing INCOM | COM | $5.3M | 1.2% |
| TJX Cos Inc. NewCOM | COM | $5.22M | 1.1% |
| Walmart Inc.COM | COM | $5.08M | 1.1% |
| Watsco Inc.COM | COM | $4.8M | 1.1% |
| Intel Corp.COM | COM | $4.47M | 1.0% |
| Eaton Corp. PLCSHS | SHS | $3.9M | 0.9% |
| Gallagher Arthur J & COCOM | COM | $3.75M | 0.8% |
| Waters Corp.COM | COM | $2.78M | 0.6% |
| Berkshire Hathaway Inc. DelCL A | CL A | $2.25M | 0.5% |
| Loews Corp.COM | COM | $1.36M | 0.3% |
| Exxon Mobil Corp.COM | COM | $989K | 0.2% |
| IntuitCOM | COM | $889K | 0.2% |
- Class
- COM NEW
- Share
- 7.0%
- Class
- CAP STK CL A
- Share
- 4.4%
- Class
- CL A
- Share
- 4.1%
- Class
- COM
- Share
- 3.4%
- Class
- COM
- Share
- 3.3%
- Class
- COM
- Share
- 3.1%
- Class
- COM
- Share
- 3.1%
- Class
- COM
- Share
- 3.1%
- Class
- COM
- Share
- 3.1%
- Class
- CL A
- Share
- 2.7%
- Class
- COM
- Share
- 2.6%
- Class
- COM
- Share
- 2.5%
- Class
- COM
- Share
- 2.4%
- Class
- COM
- Share
- 2.4%
- Class
- COM
- Share
- 2.3%
- Class
- COM
- Share
- 2.2%
- Class
- COM
- Share
- 2.2%
- Class
- COM
- Share
- 2.1%
- Class
- COM
- Share
- 2.1%
- Class
- COM
- Share
- 2.1%
- Class
- COM
- Share
- 2.0%
- Class
- COM
- Share
- 1.9%
- Class
- COM
- Share
- 1.9%
- Class
- SHS USD
- Share
- 1.9%
- Class
- SHS
- Share
- 1.8%
- Class
- COM NEW
- Share
- 1.7%
- Class
- SHS CL A
- Share
- 1.7%
- Class
- COM
- Share
- 1.6%
- Class
- COM NEW
- Share
- 1.6%
- Class
- COM
- Share
- 1.6%
- Class
- COM
- Share
- 1.5%
- Class
- ORD
- Share
- 1.5%
- Class
- COM
- Share
- 1.5%
- Class
- COM
- Share
- 1.5%
- Class
- COM
- Share
- 1.4%
- Class
- COM
- Share
- 1.4%
- Class
- COM
- Share
- 1.3%
- Class
- COM
- Share
- 1.2%
- Class
- COM
- Share
- 1.2%
- Class
- COM
- Share
- 1.1%
- Class
- COM
- Share
- 1.1%
- Class
- COM
- Share
- 1.1%
- Class
- COM
- Share
- 1.0%
- Class
- SHS
- Share
- 0.9%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.6%
- Class
- CL A
- Share
- 0.5%
- Class
- COM
- Share
- 0.3%
- Class
- COM
- Share
- 0.2%
- Class
- COM
- Share
- 0.2%
The share class is shown on a wider screen.
The 50 largest of 67 positions by value, with holdings of the same security combined. The 67 largest are in this firm's machine-readable record. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 1168889
- File number
- 028-10166
- Options
- 0 call, 0 put
- In the 25 largest
- 69.8%
- Prior quarter
- $405M at 31 March 2026
- Positions opened
- 3
- Positions closed
- 9
Common questions
What are Carderock Capital Management’s 13F holdings worth?
$456 million across 67 positions for the quarter ended 30 June 2026.
What is Carderock Capital Management’s largest 13F holding?
LAM RESEARCH CORP (COM NEW) was the largest position at $32 million, or 7.0% of reported 13F value, as of 30 June 2026.
How concentrated is Carderock Capital Management’s 13F portfolio?
The ten largest positions accounted for 37.4% of reported value and the twenty-five largest for 69.8%, across 67 positions as of 30 June 2026.
Does Form 13F show everything Carderock Capital Management manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does Carderock Capital Management file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.