Carderock Capital Management Inc.
In its 13F for Q1 2024 (holdings as of March 31, 2024, filed April 23, 2024), Carderock Capital Management Inc. reported 68 stock positions worth $356.8 million. Its top holding was Microsoft (MSFT) at 3.7% of the portfolio, followed by Mastercard Class A (MA, 3.5%) and Parker Hannifin (PH, 3.2%). Compared with Q4 2023, it opened 13 new positions, sold out of 6, added to 12 and reduced 37. The biggest buy was a new position in Chipotle Mexican Grill (CMG) and the biggest sale an exit from Verisign (VRSN).
- Most Recent 13F
- Q2 2026
- Location
- CHEVY CHASE, MD
- CIK
- 0001168889
- Portfolio Value
- $356.8M (Q1 2024)
- SEC Filing
- 0001168889-24-000002 ↗ filed Apr 23, 2024
Holdings Value
Holdings 68 stocks · $356.8M
| MSFT Microsoft Corp. | 3.65% | 30,963 | $13.0M | Reduce -9.8% |
| MA Mastercard Inc. Class A | 3.48% | 25,817 | $12.4M | Reduce -18.7% |
| PH Parker Hannifin Corp. | 3.19% | 20,461 | $11.4M | Reduce -11.8% |
| CTAS Cintas Corp. | 3.07% | 15,949 | $11.0M | Reduce -8.3% |
| LRCX Lam Research Corp. | 2.85% | 10,483 | $10.2M | Reduce -20.3% |
| CDNS Cadence Design SYS Inc. | 2.80% | 32,095 | $10.0M | Reduce -13.3% |
| AAPL Apple Inc. | 2.77% | 57,633 | $9.9M | Reduce -25.4% |
| GOOGL Alphabet Inc. Class A | 2.76% | 65,293 | $9.9M | Reduce -17.0% |
| APH Amphenol Corp. Class A | 2.74% | 84,650 | $9.8M | Reduce -4.3% |
| SHW The Sherwin-Williams Co. | 2.58% | 26,514 | $9.2M | Reduce -6.7% |
| FTNT Fortinet Inc. | 2.56% | 133,657 | $9.1M | Reduce -10.3% |
| ACGL Arch Capital Group Ltd. | 2.43% | 93,965 | $8.7M | Add +2.5% |
| ORLY O'reilly Automotive Inc. | 2.43% | 7,665 | $8.7M | Reduce -9.5% |
| AME Ametek Inc. | 2.36% | 46,129 | $8.4M | Reduce -5.8% |
| FISV Fiserv Inc. | 2.36% | 52,649 | $8.4M | Reduce -3.3% |
| SPGI S&P Global Inc. | 2.31% | 19,337 | $8.2M | Reduce -11.8% |
| ADP Automatic Data Processing | 2.21% | 31,539 | $7.9M | Reduce -1.2% |
| ACN Accenture PLC Class A | 2.18% | 22,448 | $7.8M | Reduce -4.2% |
| ROP Roper Technologies Inc. | 2.18% | 13,857 | $7.8M | Reduce -12.6% |
| WST West Pharmaceutical Services | 2.18% | 19,624 | $7.8M | Add +50.6% |
| IDXX Idexx Laboratories Inc. | 2.16% | 14,291 | $7.7M | Reduce -12.9% |
| MCO Moody's Corp. | 2.16% | 19,628 | $7.7M | Add +1.5% |
| COST Costco Wholesale Corp. | 2.16% | 10,529 | $7.7M | Reduce -5.3% |
| HD Home Depot Inc. | 2.15% | 19,955 | $7.7M | Add +3.9% |
| ITW Illinois Tool Works | 2.05% | 27,288 | $7.3M | Reduce -15.6% |
| INTU Intuit Inc. | 2.02% | 11,071 | $7.2M | Add +4.5% |
| PWR Quanta Services Inc. | 2.01% | 27,649 | $7.2M | Reduce -19.9% |
| WCN Waste Connections Inc. | 2.00% | 41,517 | $7.1M | Add +10.9% |
| IR Ingersoll-Rand Inc. | 1.99% | 74,913 | $7.1M | Reduce -0.1% |
| IEX Idex Corp. | 1.97% | 28,799 | $7.0M | Add +3.5% |
| TMO Thermo Fisher Scientific Inc. | 1.88% | 11,517 | $6.7M | Reduce -9.4% |
| AON Aon PLC Class A | 1.86% | 19,937 | $6.7M | Reduce -22.6% |
| HEI Heico Corp. | 1.76% | 32,926 | $6.3M | Add +16.1% |
| STE Steris PLC | 1.74% | 27,637 | $6.2M | Add +41.5% |
| ANSS Ansys Inc. | 1.57% | 16,143 | $5.6M | Reduce -23.1% |
| UNH Unitedhealth Group Inc. | 1.46% | 10,512 | $5.2M | Reduce -23.9% |
| DHR Danaher Corp. | 1.43% | 20,404 | $5.1M | Reduce -22.7% |
| CHD Church & Dwight Co. Inc. | 1.42% | 48,547 | $5.1M | Add +7.0% |
| POOL Pool Corp. | 1.32% | 11,658 | $4.7M | Reduce -16.2% |
| CMG Chipotle Mexican Grill Inc. | 1.30% | 1,598 | $4.6M | New |
| APD Air Products & Chemicals Inc. | 1.28% | 18,786 | $4.6M | Reduce -23.1% |
| FICO Fair Isaac Corp. | 1.11% | 3,177 | $4.0M | New |
| GWW WW Grainger Inc. filed as GRAINGER W W INC | 1.09% | 3,826 | $3.9M | New |
| ABT Abbott Laboratories | 1.02% | 32,167 | $3.7M | Reduce -34.1% |
| HON Honeywell International Inc. | 0.95% | 16,487 | $3.4M | Reduce -54.4% |
| ISRG Intuitive Surgical Inc. | 0.94% | 8,444 | $3.4M | New |
| MTD Mettler-Toledo International | 0.87% | 2,344 | $3.1M | Reduce -44.2% |
| MPWR Monolithic Power Systems Inc. | 0.75% | 3,967 | $2.7M | New |
| VFIAX Vanguard 500 Index-Adm | 0.48% | 3,498 | $1.7M | No change |
| TROW T Rowe Price Group Inc. filed as PRICE T ROWE GROUP INC | 0.35% | 10,100 | $1.2M | Add +32.9% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.20% | 1,710 | $719K | Add +44.3% |
| CVX Chevron Corp. | 0.19% | 4,307 | $679K | Reduce -7.9% |
| XOM Exxon Mobil Corp. | 0.12% | 3,733 | $434K | Reduce -11.2% |
| MAR Marriott International Class A | 0.12% | 1,718 | $433K | No change |
| GLD SPDR Gold Shares | 0.12% | 2,100 | $432K | New |
| IYW iShares Ustechnology ETF | 0.11% | 3,000 | $405K | No change |
| PAYX Paychex Inc. | 0.10% | 2,950 | $362K | Reduce -10.6% |
| AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO | 0.08% | 1,200 | $300K | New |
| CSX CSX Corp. | 0.07% | 6,850 | $254K | Reduce -7.4% |
| JNJ Johnson & Johnson | 0.07% | 1,600 | $253K | No change |
| DLR Digital Realty Trust Inc. | 0.07% | 1,700 | $245K | No change |
| FCX Freeport-McMoran Inc. | 0.07% | 5,000 | $235K | New |
| DVY iShares Select Dividend ETF | 0.06% | 1,766 | $218K | No change |
| DFEOX Dfa US Core Eqty 1 Port-Inst | 0.06% | 5,281 | $210K | New |
| LMT Lockheed Martin Corp. | 0.06% | 461 | $210K | New |
| AZO AutoZone Inc. | 0.06% | 65 | $205K | New |
| MPC Marathon Petroleum Corp. | 0.06% | 1,000 | $202K | New |
| WRN Western Copper and Gold Corp. | 0.01% | 29,000 | $44K | New |
Portfolio Sells Q4 2023 → Q1 2024
| VRSN Verisign Inc. | Sold out | 0.00% | −1.69 |
| AAPL Apple Inc. | Reduce -25.4% | 2.77% | −1.34 |
| HON Honeywell International Inc. | Reduce -54.4% | 0.95% | −1.15 |
| NKE Nike Inc. Class B | Sold out | 0.00% | −1.10 |
| AMT American Tower Corp. | Sold out | 0.00% | −0.85 |
| MKC McCormick & Co.-Non VTG SHRS | Sold out | 0.00% | −0.81 |
| APD Air Products & Chemicals Inc. | Reduce -23.1% | 1.28% | −0.57 |
| UNH Unitedhealth Group Inc. | Reduce -23.9% | 1.46% | −0.55 |
| ANSS Ansys Inc. | Reduce -23.1% | 1.57% | −0.53 |
| MTD Mettler-Toledo International | Reduce -44.2% | 0.87% | −0.53 |
| ABT Abbott Laboratories | Reduce -34.1% | 1.02% | −0.46 |
| SPGI S&P Global Inc. | Reduce -11.8% | 2.31% | −0.36 |
| IDXX Idexx Laboratories Inc. | Reduce -12.9% | 2.16% | −0.35 |
| EXR Extra Space Storage Inc. | Sold out | 0.00% | −0.30 |
| ITW Illinois Tool Works | Reduce -15.6% | 2.05% | −0.29 |
| GOOGL Alphabet Inc. Class A | Reduce -17.0% | 2.76% | −0.27 |
| DHR Danaher Corp. | Reduce -22.7% | 1.43% | −0.26 |
| MA Mastercard Inc. Class A | Reduce -18.7% | 3.48% | −0.25 |
| POOL Pool Corp. | Reduce -16.2% | 1.32% | −0.21 |
| ROP Roper Technologies Inc. | Reduce -12.6% | 2.18% | −0.21 |
| AON Aon PLC Class A | Reduce -22.6% | 1.86% | −0.21 |
| ACN Accenture PLC Class A | Reduce -4.2% | 2.18% | −0.09 |
| KO The Coca-Cola Co. | Sold out | 0.00% | −0.06 |
| PWR Quanta Services Inc. | Reduce -19.9% | 2.01% | −0.04 |
| PAYX Paychex Inc. | Reduce -10.6% | 0.10% | −0.01 |
| CVX Chevron Corp. | Reduce -7.9% | 0.19% | −0.00 |
| CSX CSX Corp. | Reduce -7.4% | 0.07% | +0.00 |
| XOM Exxon Mobil Corp. | Reduce -11.2% | 0.12% | +0.01 |
| LRCX Lam Research Corp. | Reduce -20.3% | 2.85% | +0.01 |
| TMO Thermo Fisher Scientific Inc. | Reduce -9.4% | 1.88% | +0.01 |
| CDNS Cadence Design SYS Inc. | Reduce -13.3% | 2.80% | +0.02 |
| MSFT Microsoft Corp. | Reduce -9.8% | 3.65% | +0.09 |
| SHW The Sherwin-Williams Co. | Reduce -6.7% | 2.58% | +0.13 |
| AME Ametek Inc. | Reduce -5.8% | 2.36% | +0.14 |
| COST Costco Wholesale Corp. | Reduce -5.3% | 2.16% | +0.14 |
| FTNT Fortinet Inc. | Reduce -10.3% | 2.56% | +0.15 |
| ADP Automatic Data Processing | Reduce -1.2% | 2.21% | +0.15 |
| CTAS Cintas Corp. | Reduce -8.3% | 3.07% | +0.18 |
| ORLY O'reilly Automotive Inc. | Reduce -9.5% | 2.43% | +0.20 |
| PH Parker Hannifin Corp. | Reduce -11.8% | 3.19% | +0.23 |
| APH Amphenol Corp. Class A | Reduce -4.3% | 2.74% | +0.31 |
| FISV Fiserv Inc. | Reduce -3.3% | 2.36% | +0.36 |
| IR Ingersoll-Rand Inc. | Reduce -0.1% | 1.99% | +0.39 |
Portfolio Buys Q4 2023 → Q1 2024
| CMG Chipotle Mexican Grill Inc. | New | 1.30% | +1.30 |
| FICO Fair Isaac Corp. | New | 1.11% | +1.11 |
| GWW WW Grainger Inc. | New | 1.09% | +1.09 |
| ISRG Intuitive Surgical Inc. | New | 0.94% | +0.94 |
| WST West Pharmaceutical Services | Add +50.6% | 2.18% | +0.91 |
| MPWR Monolithic Power Systems Inc. | New | 0.75% | +0.75 |
| STE Steris PLC | Add +41.5% | 1.74% | +0.56 |
| ACGL Arch Capital Group Ltd. | Add +2.5% | 2.43% | +0.55 |
| WCN Waste Connections Inc. | Add +10.9% | 2.00% | +0.46 |
| HEI Heico Corp. | Add +16.1% | 1.76% | +0.36 |
| HD Home Depot Inc. | Add +3.9% | 2.15% | +0.31 |
| IEX Idex Corp. | Add +3.5% | 1.97% | +0.30 |
| CHD Church & Dwight Co. Inc. | Add +7.0% | 1.42% | +0.24 |
| INTU Intuit Inc. | Add +4.5% | 2.02% | +0.19 |
| GLD SPDR Gold Shares | New | 0.12% | +0.12 |
| TROW T Rowe Price Group Inc. | Add +32.9% | 0.35% | +0.12 |
| BRK.B Berkshire Hathaway Inc. Class B | Add +44.3% | 0.20% | +0.08 |
| AJG Arthur J Gallagher & Co. | New | 0.08% | +0.08 |
| MCO Moody's Corp. | Add +1.5% | 2.16% | +0.08 |
| FCX Freeport-McMoran Inc. | New | 0.07% | +0.07 |
| DFEOX Dfa US Core Eqty 1 Port-Inst | New | 0.06% | +0.06 |
| LMT Lockheed Martin Corp. | New | 0.06% | +0.06 |
| AZO AutoZone Inc. | New | 0.06% | +0.06 |
| MPC Marathon Petroleum Corp. | New | 0.06% | +0.06 |
| WRN Western Copper and Gold Corp. | New | 0.01% | +0.01 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 67 | $455.8M | LRCX, GOOGL, APH, LLY, AAPL |
| Q1 2026 | 73 | $404.8M | LRCX, GOOGL, APH, AAPL, MPWR |
| Q4 2025 | 69 | $412.7M | GOOGL, LRCX, APH, AAPL, LLY |
| Q3 2025 | 72 | $411.3M | APH, LRCX, MSFT, GOOGL, HEI |
| Q2 2025 | 139 | $390.4M | APH, MSFT, HEI, LRCX, MA |
| Q1 2025 | 70 | $377.3M | MA, AAPL, ISRG, FISV, CTAS |
| Q4 2024 | 73 | $398.7M | AAPL, MSFT, MA, GOOGL, APH |
| Q3 2024 | 73 | $423.6M | AAPL, MSFT, CTAS, PH, FICO |
| Q2 2024 | 69 | $382.2M | MSFT, AAPL, GOOGL, APH, LRCX |
| Q1 2024 | 68 | $356.8M | MSFT, MA, PH, CTAS, LRCX |