CARDEROCK CAPITAL MANAGEMENT INC
Long book
$404.8M
Q1 2026
Positions
73
Top-10 weight
33%
concentration
Last quarter
+15.5%
SPY +14.8%
Turnover
16%
of book per quarter
Strategy in plain words
auto-generated from filingsCARDEROCK CAPITAL MANAGEMENT INC is an institutional manager, running a $404.8M US long book across 73 positions.
The portfolio is moderately concentrated (top 10 ≈ 33% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: LAM RESEARCH CORP, ALPHABET INC-CL A, AMPHENOL CORP-CL A, APPLE INC, MONOLITHIC POWER SYSTEMS INC.
Over the last 9 quarters its long book ran on average 1.5pp per quarter behind the S&P 500, beating the index in 3 of 9 quarters. Signal value of individual moves is limited — treat changes as weak evidence.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-0.2%
Q2 2024
+8.4%
Q3 2024
-1.7%
Q4 2024
-1.2%
Q1 2025
+6.4%
Q2 2025
+2.3%
Q3 2025
+2.4%
Q4 2025
-5.1%
Q1 2026
+15.5%
Sector allocation
Technology 33%
Industrials 17%
Consumer discretionary 13%
Healthcare 9%
Services media 8%
Materials 6%
Other 5%
Financials 5%
Long book by quarter
What does CARDEROCK CAPITAL own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| LRCX LAM RESEARCH CORP | Industrials | 95.8K | $20.5M | 5.1% | -9.6% |
| GOOGL ALPHABET INC-CL A | Technology | 57.8K | $16.6M | 4.1% | -1.5% |
| APH AMPHENOL CORP-CL A | Technology | 113.5K | $14.3M | 3.5% | -8.3% |
| AAPL APPLE INC | Technology | 52.7K | $13.4M | 3.3% | +2.7% |
| MPWR MONOLITHIC POWER SYSTEMS INC | Technology | 11.7K | $12.8M | 3.2% | +1.7% |
| PWR QUANTA SERVICES INC | Industrials | 22.9K | $12.6M | 3.1% | -4.4% |
| LLY ELI LILLY & CO | Healthcare | 12.6K | $11.6M | 2.9% | +3.3% |
| MA MASTERCARD INC - A | Services media | 23.0K | $11.5M | 2.8% | +2.3% |
| TMO THERMO FISHER SCIENTIFIC INC | Other | 21.3K | $10.5M | 2.6% | +1.2% |
| HEI HEICO CORP | Industrials | 37.5K | $10.3M | 2.5% | +0.6% |
| PH PARKER HANNIFIN CORP | Industrials | 11.3K | $10.1M | 2.5% | +0.6% |
| MSFT MICROSOFT CORP | Technology | 26.9K | $10.0M | 2.5% | +2.5% |
| AME AMETEK INC | Technology | 45.5K | $9.8M | 2.4% | +3.9% |
| COST COSTCO WHOLESALE CORP | Consumer discretionary | 9.7K | $9.7M | 2.4% | +2.4% |
| SPGI S&P GLOBAL INC | Services media | 22.6K | $9.6M | 2.4% | -2.9% |
| ORLY O'REILLY AUTOMOTIVE INC | Consumer discretionary | 102.3K | $9.4M | 2.3% | -0.6% |
| NVDA NVIDIA CORP | Technology | 53.6K | $9.3M | 2.3% | +13.4% |
| IDXX IDEXX LABORATORIES INC | Materials | 16.5K | $9.3M | 2.3% | -1.8% |
| STE STERIS PLC | Healthcare | 38.8K | $8.6M | 2.1% | +4.5% |
| ISRG INTUITIVE SURGICAL INC | Healthcare | 18.5K | $8.5M | 2.1% | +1.6% |
| MNST MONSTER BEVERAGE CORP | Consumer staples | 116.5K | $8.4M | 2.1% | +2.2% |
| MSI MOTOROLA SOLUTIONS INC | Technology | 17.9K | $7.7M | 1.9% | +56.5% |
| CTAS CINTAS CORP | Other | 45.5K | $7.7M | 1.9% | -0.9% |
| SHW SHERWIN-WILLIAMS CO/THE | Consumer discretionary | 23.9K | $7.7M | 1.9% | -0.2% |
| CDNS CADENCE DESIGN SYS INC | Technology | 27.3K | $7.6M | 1.9% | +0.5% |
| FTNT FORTINET INC | Technology | 91.1K | $7.4M | 1.8% | -3.2% |
| MCO MOODY'S CORP | Services media | 17.1K | $7.4M | 1.8% | -2.9% |
| LIN LINDE PLC | Materials | 14.8K | $7.4M | 1.8% | +48.9% |
| APD AIR PRODUCTS & CHEMICALS INC | Materials | 24.8K | $7.2M | 1.8% | +17.9% |
| ADP AUTOMATIC DATA PROCESSING | Technology | 34.4K | $7.0M | 1.7% | +2.6% |
| AON AON PLC-CLASS A | Financials | 21.6K | $7.0M | 1.7% | -3.8% |
| ACGL ARCH CAPITAL GROUP LTD | Financials | 71.4K | $6.9M | 1.7% | +2.2% |
| INTU INTUIT INC | Technology | 15.6K | $6.7M | 1.7% | +31.2% |
| SYK STRYKER CORP | Healthcare | 20.3K | $6.7M | 1.7% | +4.6% |
| GWW WW GRAINGER INC | Consumer discretionary | 6.1K | $6.7M | 1.6% | +1.9% |
| HD HOME DEPOT INC | Consumer discretionary | 20.2K | $6.6M | 1.6% | -0.1% |
| ITW ILLINOIS TOOL WORKS | Industrials | 24.2K | $6.3M | 1.6% | +2.3% |
| LDOS LEIDOS HOLDINGS INC | Technology | 36.0K | $5.6M | 1.4% | +1.3% |
| WCN WASTE CONNECTIONS INC | Utilities | 33.6K | $5.5M | 1.3% | +1.3% |
| IR INGERSOLL-RAND INC | Industrials | 64.6K | $5.2M | 1.3% | +2.8% |
| WMT WALMART INC | Consumer discretionary | 40.0K | $5.0M | 1.2% | +171.7% |
| DHR DANAHER CORP | Technology | 25.5K | $4.8M | 1.2% | +4.0% |
| TJX TJX COMPANIES INC | Consumer discretionary | 28.1K | $4.5M | 1.1% | +137.2% |
| FSS FEDERAL SIGNAL CORP | Industrials | 34.2K | $3.7M | 0.9% | +119.4% |
| FICO FAIR ISAAC CORP | Services media | 2.7K | $2.9M | 0.7% | -47.8% |
| BRK/A BERKSHIRE HATHAWAY INC-CL A | Financials | 3 | $2.2M | 0.5% | New |
| XOM EXXON MOBIL CORP | Energy | 10.2K | $1.7M | 0.4% | -3.8% |
| INTC INTEL CORP | Technology | 32.0K | $1.4M | 0.3% | New |
| WSO WATSCO INC | Consumer discretionary | 3.6K | $1.3M | 0.3% | +29.3% |
| L LOEWS CORP | Financials | 12.0K | $1.3M | 0.3% | New |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | Apr 10, 2026 | 73 | $404.8M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Jan 9, 2026 | 69 | $412.7M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Oct 17, 2025 | 72 | $411.3M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Jul 10, 2025 | 139 | $390.4M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 27, 2025 | 70 | $377.3M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Jan 15, 2025 | 73 | $398.7M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Oct 16, 2024 | 73 | $423.6M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Jul 22, 2024 | 69 | $382.2M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | Apr 23, 2024 | 68 | $356.8M | canonical | SEC ↗ |
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