Carderock Capital Management
CHEVY CHASE, MDfiles as CARDEROCK CAPITAL MANAGEMENT INC
$456m in 67 US stocks at the end of 30 June 2026. The top 10 are 37.4% of the money. It changed about 11.5% of the portfolio this quarter.
Value
$456m
Stocks
67
Top 10 share
37.4%
Turnover
11.5%
What changed this quarter
New
Bought for the first time this quarter.
- EatonETN0.9% of the fund
- Arthur J. GallagherAJG0.8% of the fund
- WatersWAT0.6% of the fund
Added
Bought more of a stock they already held.
- HeicoHEI3.1% of the fund+7%
- MastercardMA2.7% of the fund+6%
- Monster BeverageMNST2.6% of the fund+7%
- NvidiaNVDA2.5% of the fund+5%
- Costco WholesaleCOST2.2% of the fund+11%
- Federal SignalFSS2.1% of the fund+119%
- W.W. GraingerGWW2.1% of the fund+12%
- Sherwin-WilliamsSHW1.9% of the fund+6%
- SterisSTE1.9% of the fund+3%
- LindeLIN1.8% of the fund+5%
- Motorola SolutionsMSI1.7% of the fund+7%
- AonAON1.7% of the fund+9%
- StrykerSYK1.5% of the fund+6%
- Waste ConnectionsWCN1.3% of the fund+4%
- TJX CompaniesTJX1.1% of the fund+23%
- WalmartWMT1.1% of the fund+12%
- WatscoWSO1.1% of the fund+216%
- Chipotle Mexican GrillCMG0.1% of the fund+120%
Cut
Sold some of their stake.
- Lam ResearchLRCX7.0% of the fund-23%
- AlphabetGOOGL4.4% of the fund-2%
- AmphenolAPH4.1% of the fund-6%
- Monolithic Power SystemsMPWR3.1% of the fund-12%
- Quanta ServicesPWR3.1% of the fund-14%
- Cadence Design SystemsCDNS2.1% of the fund-9%
- CintasCTAS1.6% of the fund-3%
- Air Products & ChemicalsAPD1.5% of the fund-5%
- S&P GlobalSPGI1.5% of the fund-28%
- Moody'sMCO1.4% of the fund-19%
- Automatic Data ProcessingADP1.2% of the fund-31%
- ExxonMobil HoldingsXOM0.2% of the fund-29%
- IntuitINTU0.2% of the fund-78%
- Church & DwightCHD0.2% of the fund-7%
- Marriott InternationalMAR0.1% of the fund-11%
- Leidos HoldingsLDOS0.1% of the fund-83%
- Berkshire HathawayBRK-B0.1% of the fund-20%
- ChevronCVX0.1% of the fund-14%
- JPMorgan ChaseJPM0.1% of the fund-27%
- WD 40WDFC<0.1% of the fund-25%
- DanaherDHR<0.1% of the fund-96%
Sold out
Sold their entire stake.
- Fair IsaacFICO-100%
- Johnson & JohnsonJNJ-100%
- General MillsGIS-100%
- Digital Realty TrustDLR-100%
- Honeywell InternationalHON-100%
- Bristol-Myers SquibbBMY-100%
- Ishares TRDVY-100%
- AccentureACN-100%
- RTXRTX-100%
Holdings
- Berkshire Hathaway INC DELBRK-A
- Share
- 0.5%
- Value
- $2m
- Shares
- 3
Held
- Ishares TRIYW
- Share
- 0.2%
- Value
- $725,161
- Shares
- 2,875
Held
- DNP Select Income FundDNP
- Share
- <0.1%
- Value
- $254,687
- Shares
- 23,604
Held
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| Lam ResearchLRCX | 7.0% | $32m | 73,797 | -23% |
| AlphabetGOOGL | 4.4% | $20m | 56,486 | -2% |
| AmphenolAPH | 4.1% | $19m | 106,575 | -6% |
| Eli LillyLLY | 3.4% | $15m | 12,818 | Held |
| AppleAAPL | 3.3% | $15m | 51,909 | Held |
| HeicoHEI | 3.1% | $14m | 40,081 | +7% |
| Monolithic Power SystemsMPWR | 3.1% | $14m | 10,301 | -12% |
| Quanta ServicesPWR | 3.1% | $14m | 19,621 | -14% |
| FortinetFTNT | 3.1% | $14m | 91,400 | Held |
| MastercardMA | 2.7% | $13m | 24,357 | +6% |
| Monster BeverageMNST | 2.6% | $12m | 124,341 | +7% |
| NvidiaNVDA | 2.5% | $11m | 56,544 | +5% |
| AmetekAME | 2.4% | $11m | 45,841 | Held |
| Parker-HannifinPH | 2.4% | $11m | 11,112 | Held |
| Thermo Fisher ScientificTMO | 2.3% | $10m | 20,860 | Held |
| MicrosoftMSFT | 2.2% | $10m | 27,435 | Held |
| Costco WholesaleCOST | 2.2% | $10m | 10,821 | +11% |
| Federal SignalFSS | 2.1% | $10m | 74,774 | +119% |
| W.W. GraingerGWW | 2.1% | $9m | 6,874 | +12% |
| Cadence Design SystemsCDNS | 2.1% | $9m | 24,899 | -9% |
| O'Reilly AutomotiveORLY | 2.0% | $9m | 101,093 | Held |
| Idexx LaboratoriesIDXX | 1.9% | $9m | 16,627 | Held |
| Sherwin-WilliamsSHW | 1.9% | $9m | 25,398 | +6% |
| SterisSTE | 1.9% | $8m | 40,090 | +3% |
| LindeLIN | 1.8% | $8m | 15,606 | +5% |
| Motorola SolutionsMSI | 1.7% | $8m | 19,069 | +7% |
| AonAON | 1.7% | $8m | 23,559 | +9% |
| CintasCTAS | 1.6% | $7m | 43,970 | -3% |
| Intuitive SurgicalISRG | 1.6% | $7m | 18,207 | Held |
| Home DepotHD | 1.6% | $7m | 20,032 | Held |
| Air Products & ChemicalsAPD | 1.5% | $7m | 23,505 | -5% |
| Arch Capital GroupACGL | 1.5% | $7m | 70,348 | Held |
| StrykerSYK | 1.5% | $7m | 21,642 | +6% |
| S&P GlobalSPGI | 1.5% | $7m | 16,357 | -28% |
| Illinois Tool WorksITW | 1.4% | $7m | 24,420 | Held |
| Moody'sMCO | 1.4% | $6m | 13,750 | -19% |
| Waste ConnectionsWCN | 1.3% | $6m | 35,027 | +4% |
| Ingersoll RandIR | 1.2% | $5m | 65,223 | Held |
| Automatic Data ProcessingADP | 1.2% | $5m | 23,646 | -31% |
| TJX CompaniesTJX | 1.1% | $5m | 34,486 | +23% |
| WalmartWMT | 1.1% | $5m | 44,837 | +12% |
| WatscoWSO | 1.1% | $5m | 11,519 | +216% |
| IntelINTC | 1.0% | $4m | 32,000 | Held |
| EatonETN | 0.9% | $4m | 9,160 | New |
| Arthur J. GallagherAJG | 0.8% | $4m | 16,330 | New |
| WatersWAT | 0.6% | $3m | 7,417 | New |
| Berkshire Hathaway INC DELBRK-A | 0.5% | $2m | 3 | Held |
| LoewsL | 0.3% | $1m | 12,000 | Held |
| ExxonMobil HoldingsXOM | 0.2% | $988,896 | 7,233 | -29% |
| IntuitINTU | 0.2% | $889,227 | 3,407 | -78% |
| Church & DwightCHD | 0.2% | $862,038 | 8,898 | -7% |
| Ishares TRIYW | 0.2% | $725,161 | 2,875 | Held |
| Marriott InternationalMAR | 0.1% | $673,733 | 1,818 | -11% |
| Leidos HoldingsLDOS | 0.1% | $643,665 | 6,251 | -83% |
| Darden RestaurantsDRI | 0.1% | $618,030 | 3,000 | Held |
| Berkshire HathawayBRK-B | 0.1% | $600,468 | 1,200 | -20% |
| ChevronCVX | 0.1% | $593,752 | 3,582 | -14% |
| JPMorgan ChaseJPM | 0.1% | $540,422 | 1,651 | -27% |
| Chipotle Mexican GrillCMG | 0.1% | $530,298 | 15,597 | +120% |
| Price T Rowe GroupTROW | <0.1% | $392,231 | 3,450 | Held |
| WD 40WDFC | <0.1% | $365,460 | 1,500 | -25% |
| PaychexPAYX | <0.1% | $290,074 | 2,950 | Held |
| CSXCSX | <0.1% | $270,921 | 5,700 | Held |
| DNP Select Income FundDNP | <0.1% | $254,687 | 23,604 | Held |
| Coca-ColaKO | <0.1% | $231,620 | 2,850 | Held |
| DanaherDHR | <0.1% | $210,671 | 1,106 | -96% |
| AutozoneAZO | <0.1% | $207,736 | 65 | Held |
Over time and by industry
Value over time
Jun '25
Dec '25
Jun '26
Value is up 16.8% since 30 June 2025.
Where the money is
Technology30.3%
Industrials20.7%
Health care13.2%
Financial services10.2%
Retail & consumer7.3%
Everyday goods6.2%
Materials5.3%
Media & telecom4.4%
Utilities1.3%
Energy0.3%
Other0.7%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.