Carderock Capital Management Inc.
In its 13F for Q3 2024 (holdings as of September 30, 2024, filed October 16, 2024), Carderock Capital Management Inc. reported 73 stock positions worth $423.6 million. Its top holding was Apple (AAPL) at 3.3% of the portfolio, followed by Microsoft (MSFT, 3.2%) and Cintas (CTAS, 3.1%). Compared with Q2 2024, it opened 7 new positions, sold out of 3, added to 31 and reduced 25. The biggest buy was a new position in Lam Research (LRCX) and the biggest sale an exit from Lam Research (LRCX).
- Most Recent 13F
- Q2 2026
- Location
- CHEVY CHASE, MD
- CIK
- 0001168889
- Portfolio Value
- $423.6M (Q3 2024)
- SEC Filing
- 0001168889-24-000005 ↗ filed Oct 16, 2024
Holdings Value
Holdings 73 stocks · $423.6M
| AAPL Apple Inc. | 3.27% | 59,491 | $13.9M | Add +1.2% |
| MSFT Microsoft Corp. | 3.18% | 31,350 | $13.5M | Add +0.2% |
| CTAS Cintas Corp. | 3.10% | 63,678 | $13.1M | Reduce -3.0% |
| PH Parker Hannifin Corp. | 2.93% | 19,653 | $12.4M | Reduce -6.0% |
| FICO Fair Isaac Corp. | 2.84% | 6,187 | $12.0M | Add +0.3% |
| MA Mastercard Inc. Class A | 2.83% | 24,307 | $12.0M | Reduce -5.9% |
| APH Amphenol Corp. Class A | 2.65% | 172,118 | $11.2M | Reduce -0.3% |
| GOOGL Alphabet Inc. Class A | 2.60% | 66,273 | $11.0M | Reduce -0.1% |
| ACGL Arch Capital Group Ltd. | 2.57% | 97,339 | $10.9M | Add +1.1% |
| ISRG Intuitive Surgical Inc. | 2.56% | 22,063 | $10.8M | Add +2.3% |
| SPGI S&P Global Inc. | 2.43% | 19,929 | $10.3M | Add +2.4% |
| COST Costco Wholesale Corp. | 2.37% | 11,335 | $10.0M | Add +4.2% |
| HEI Heico Corp. | 2.30% | 37,261 | $9.7M | Add +2.7% |
| FISV Fiserv Inc. | 2.28% | 53,717 | $9.7M | Reduce -0.1% |
| MCO Moody's Corp. | 2.22% | 19,843 | $9.4M | Reduce -1.6% |
| PWR Quanta Services Inc. | 2.21% | 31,397 | $9.4M | Add +4.9% |
| SHW The Sherwin-Williams Co. | 2.21% | 24,505 | $9.4M | Reduce -6.8% |
| MPWR Monolithic Power Systems Inc. | 2.19% | 10,022 | $9.3M | Add +4.7% |
| LRCX Lam Research Corp. | 2.16% | 11,192 | $9.1M | New |
| CDNS Cadence Design SYS Inc. | 2.13% | 33,319 | $9.0M | Add +1.6% |
| ORLY O'reilly Automotive Inc. | 2.11% | 7,743 | $8.9M | Reduce -0.4% |
| ADP Automatic Data Processing | 2.06% | 31,539 | $8.7M | Reduce -1.6% |
| HD Home Depot Inc. | 2.05% | 21,390 | $8.7M | Add +4.9% |
| AME Ametek Inc. | 1.93% | 47,698 | $8.2M | Add +2.4% |
| LLY Eli Lilly & Co. | 1.88% | 8,971 | $7.9M | Add +15.5% |
| ROP Roper Technologies Inc. | 1.87% | 14,233 | $7.9M | Add +4.0% |
| WCN Waste Connections Inc. | 1.87% | 44,223 | $7.9M | Add +3.7% |
| TMO Thermo Fisher Scientific Inc. | 1.85% | 12,640 | $7.8M | Add +6.3% |
| CMG Chipotle Mexican Grill Inc. | 1.84% | 134,903 | $7.8M | Add +17.1% |
| ACN Accenture PLC Class A | 1.82% | 21,819 | $7.7M | Add +4.0% |
| SYK Stryker Corp. | 1.82% | 21,316 | $7.7M | Add +13.4% |
| APD Air Products & Chemicals Inc. | 1.81% | 25,699 | $7.7M | Add +5.5% |
| IDXX Idexx Laboratories Inc. | 1.73% | 14,487 | $7.3M | Reduce -1.9% |
| STE Steris PLC | 1.69% | 29,588 | $7.2M | Reduce -7.3% |
| IR Ingersoll-Rand Inc. | 1.68% | 72,637 | $7.1M | Reduce -5.6% |
| FTNT Fortinet Inc. | 1.65% | 90,205 | $7.0M | Reduce -33.3% |
| INTU Intuit Inc. | 1.60% | 10,935 | $6.8M | Reduce -0.9% |
| UNH Unitedhealth Group Inc. | 1.58% | 11,414 | $6.7M | Add +9.2% |
| NVDA Nvidia Corp. | 1.53% | 53,497 | $6.5M | Add +72.2% |
| WSO Watsco Inc. | 1.51% | 12,987 | $6.4M | Add +16.5% |
| AON Aon PLC Class A | 1.43% | 17,527 | $6.1M | Reduce -6.7% |
| CHD Church & Dwight Co. Inc. | 1.42% | 57,509 | $6.0M | Add +1.7% |
| DHR Danaher Corp. | 1.40% | 21,278 | $5.9M | Add +0.7% |
| LMT Lockheed Martin Corp. | 1.39% | 10,094 | $5.9M | Add +141.0% |
| ITW Illinois Tool Works | 1.31% | 21,224 | $5.6M | Add +2.4% |
| GWW WW Grainger Inc. filed as GRAINGER W W INC | 1.16% | 4,740 | $4.9M | Add +10.3% |
| HSY The Hershey Co. | 0.92% | 20,398 | $3.9M | Add +13.6% |
| MNST Monster Beverage Corp. | 0.59% | 47,838 | $2.5M | Add +26.3% |
| ANSS Ansys Inc. | 0.57% | 7,513 | $2.4M | Reduce -6.7% |
| VFIAX Vanguard 500 Index-Adm | 0.44% | 3,498 | $1.9M | No change |
| MTD Mettler-Toledo International | 0.31% | 888 | $1.3M | Reduce -16.0% |
| TROW T Rowe Price Group Inc. filed as PRICE T ROWE GROUP INC | 0.26% | 10,100 | $1.1M | No change |
| HON Honeywell International Inc. | 0.24% | 4,835 | $999K | Reduce -1.6% |
| CVX Chevron Corp. | 0.15% | 4,307 | $634K | No change |
| ABT Abbott Laboratories | 0.14% | 5,335 | $608K | Reduce -0.9% |
| NPRTX Neuberger Large CP Value-Inv | 0.13% | 11,195 | $535K | New |
| NBGNX Neuberger Genesis Fund | 0.12% | 7,709 | $527K | New |
| IYW iShares Ustechnology ETF | 0.11% | 3,000 | $455K | No change |
| MAR Marriott International Class A | 0.10% | 1,718 | $427K | No change |
| XOM Exxon Mobil Corp. | 0.10% | 3,463 | $406K | Reduce -7.2% |
| PAYX Paychex Inc. | 0.09% | 2,950 | $396K | No change |
| BRK.B Berkshire Hathaway Inc. Class B | 0.09% | 850 | $391K | Reduce -12.8% |
| AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO | 0.08% | 1,200 | $338K | No change |
| DGRW Wisdomtree U.S. Quality Divi | 0.07% | 3,453 | $287K | New |
| DLR Digital Realty Trust Inc. | 0.07% | 1,700 | $275K | No change |
| OUSA Alps Oshares US Quality Divi | 0.06% | 5,060 | $273K | New |
| DVY iShares Select Dividend ETF | 0.06% | 1,766 | $239K | No change |
| JNJ Johnson & Johnson | 0.06% | 1,450 | $235K | Reduce -3.3% |
| CSX CSX Corp. | 0.05% | 6,650 | $230K | Reduce -2.9% |
| DFEOX Dfa US Core Eqty 1 Port-Inst | 0.05% | 5,281 | $225K | No change |
| KO The Coca-Cola Co. | 0.05% | 3,000 | $216K | Reduce -7.7% |
| AZO AutoZone Inc. | 0.05% | 65 | $205K | New |
| Duff & Phelps Util Income | 0.03% | 14,205 | $143K | New |
Portfolio Sells Q2 2024 → Q3 2024
| LRCX Lam Research Corp. | Sold out | 0.00% | −3.02 |
| GOOGL Alphabet Inc. Class A | Reduce -0.1% | 2.60% | −0.57 |
| FTNT Fortinet Inc. | Reduce -33.3% | 1.65% | −0.48 |
| APH Amphenol Corp. Class A | Reduce -0.3% | 2.65% | −0.39 |
| INTU Intuit Inc. | Reduce -0.9% | 1.60% | −0.29 |
| IDXX Idexx Laboratories Inc. | Reduce -1.9% | 1.73% | −0.15 |
| MA Mastercard Inc. Class A | Reduce -5.9% | 2.83% | −0.15 |
| IR Ingersoll-Rand Inc. | Reduce -5.6% | 1.68% | −0.15 |
| STE Steris PLC | Reduce -7.3% | 1.69% | −0.14 |
| ANSS Ansys Inc. | Reduce -6.7% | 0.57% | −0.11 |
| MTD Mettler-Toledo International | Reduce -16.0% | 0.31% | −0.07 |
| FCX Freeport-McMoran Inc. | Sold out | 0.00% | −0.06 |
| IEX Idex Corp. | Sold out | 0.00% | −0.06 |
| ORLY O'reilly Automotive Inc. | Reduce -0.4% | 2.11% | −0.04 |
| HON Honeywell International Inc. | Reduce -1.6% | 0.24% | −0.04 |
| XOM Exxon Mobil Corp. | Reduce -7.2% | 0.10% | −0.02 |
| BRK.B Berkshire Hathaway Inc. Class B | Reduce -12.8% | 0.09% | −0.01 |
| AON Aon PLC Class A | Reduce -6.7% | 1.43% | −0.01 |
| CSX CSX Corp. | Reduce -2.9% | 0.05% | −0.01 |
| KO The Coca-Cola Co. | Reduce -7.7% | 0.05% | −0.00 |
| ABT Abbott Laboratories | Reduce -0.9% | 0.14% | −0.00 |
| JNJ Johnson & Johnson | Reduce -3.3% | 0.06% | −0.00 |
| MCO Moody's Corp. | Reduce -1.6% | 2.22% | +0.00 |
| ADP Automatic Data Processing | Reduce -1.6% | 2.06% | +0.06 |
| CTAS Cintas Corp. | Reduce -3.0% | 3.10% | +0.09 |
| SHW The Sherwin-Williams Co. | Reduce -6.8% | 2.21% | +0.16 |
| PH Parker Hannifin Corp. | Reduce -6.0% | 2.93% | +0.16 |
| FISV Fiserv Inc. | Reduce -0.1% | 2.28% | +0.18 |
Portfolio Buys Q2 2024 → Q3 2024
| LRCX Lam Research Corp. | New | 2.16% | +2.16 |
| LMT Lockheed Martin Corp. | Add +141.0% | 1.39% | +0.88 |
| NVDA Nvidia Corp. | Add +72.2% | 1.53% | +0.53 |
| FICO Fair Isaac Corp. | Add +0.3% | 2.84% | +0.44 |
| PWR Quanta Services Inc. | Add +4.9% | 2.21% | +0.22 |
| HD Home Depot Inc. | Add +4.9% | 2.05% | +0.21 |
| UNH Unitedhealth Group Inc. | Add +9.2% | 1.58% | +0.18 |
| HEI Heico Corp. | Add +2.7% | 2.30% | +0.18 |
| APD Air Products & Chemicals Inc. | Add +5.5% | 1.81% | +0.16 |
| SPGI S&P Global Inc. | Add +2.4% | 2.43% | +0.16 |
| WSO Watsco Inc. | Add +16.5% | 1.51% | +0.16 |
| ACN Accenture PLC Class A | Add +4.0% | 1.82% | +0.15 |
| GWW WW Grainger Inc. | Add +10.3% | 1.16% | +0.15 |
| SYK Stryker Corp. | Add +13.4% | 1.82% | +0.14 |
| MPWR Monolithic Power Systems Inc. | Add +4.7% | 2.19% | +0.13 |
| NPRTX Neuberger Large CP Value-Inv | New | 0.13% | +0.13 |
| TMO Thermo Fisher Scientific Inc. | Add +6.3% | 1.85% | +0.13 |
| NBGNX Neuberger Genesis Fund | New | 0.12% | +0.12 |
| MNST Monster Beverage Corp. | Add +26.3% | 0.59% | +0.09 |
| DGRW Wisdomtree U.S. Quality Divi | New | 0.07% | +0.07 |
| OUSA Alps Oshares US Quality Divi | New | 0.06% | +0.06 |
| HSY The Hershey Co. | Add +13.6% | 0.92% | +0.06 |
| ISRG Intuitive Surgical Inc. | Add +2.3% | 2.56% | +0.05 |
| AZO AutoZone Inc. | New | 0.05% | +0.05 |
| LLY Eli Lilly & Co. | Add +15.5% | 1.88% | +0.04 |
| Duff & Phelps Util Income | New | 0.03% | +0.03 |
| AAPL Apple Inc. | Add +1.2% | 3.27% | +0.03 |
| ACGL Arch Capital Group Ltd. | Add +1.1% | 2.57% | +0.03 |
| ITW Illinois Tool Works | Add +2.4% | 1.31% | +0.03 |
| DHR Danaher Corp. | Add +0.7% | 1.40% | +0.02 |
| COST Costco Wholesale Corp. | Add +4.2% | 2.37% | −0.05 |
| CMG Chipotle Mexican Grill Inc. | Add +17.1% | 1.84% | −0.05 |
| WCN Waste Connections Inc. | Add +3.7% | 1.87% | −0.09 |
| AME Ametek Inc. | Add +2.4% | 1.93% | −0.10 |
| CHD Church & Dwight Co. Inc. | Add +1.7% | 1.42% | −0.11 |
| ROP Roper Technologies Inc. | Add +4.0% | 1.87% | −0.15 |
| MSFT Microsoft Corp. | Add +0.2% | 3.18% | −0.47 |
| CDNS Cadence Design SYS Inc. | Add +1.6% | 2.13% | −0.51 |
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 |