CARDEROCK CAPITAL MANAGEMENT INC
Regulatory profile
From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.
Portfolio style
Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.
Closest benchmark: the S&P 500 as of 2026-06-30, active share 75.9%; sector active share 24.5% against the combined 13F book's sector weights.
Over time 26 measured quarters
How the bands are measured
Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.
Clone Performance
Build a hypothetical price-return history from this filer's public 13F holdings.
View clone backtestPortfolio Concentration
67 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026Portfolio Trend
Sector Breakdown
As of Jun 30, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Technology | 34.4% | $163,260,602 |
| Industrials | 21.8% | $103,567,164 |
| Healthcare | 12.7% | $60,074,199 |
| Financial Services | 10.4% | $49,182,970 |
| Consumer Defensive | 6.0% | $28,246,271 |
| Basic Materials | 5.1% | $24,100,271 |
| Consumer Cyclical | 5.0% | $23,628,964 |
| Communication Services | 4.3% | $20,186,401 |
| Energy | 0.3% | $1,582,647 |
| Unclassified | 0.2% | $725,161 |
Last Quarter's Activity
Export CSVAdded To
Positions the filer increased| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| FSS | Federal Signal Corp | +40,572 | 74,774 | $9,607,711 | |
| CMG | Chipotle Mexican Grill Inc | +8,506 | 15,597 | $530,298 | |
| WSO | Watsco Inc | +7,869 | 11,519 | $4,800,312 | |
| MNST | Monster Beverage Corp | +7,845 | 124,341 | $11,951,656 | |
| TJX | Tjx Companies Inc | +6,368 | 34,486 | $5,224,629 | |
| WMT | Walmart Inc. | +4,797 | 44,837 | $5,078,238 | |
| NVDA | Nvidia Corp | +2,934 | 56,544 | $11,313,888 | |
| HEI | Heico Corp | +2,556 | 40,081 | $14,276,451 | |
| AON | Aon plc | +1,973 | 23,559 | $7,814,284 | |
| SHW | Sherwin Williams Co | +1,450 | 25,398 | $8,745,039 | |
| WCN | Waste Connections, Inc. | +1,399 | 35,027 | $5,838,650 | |
| MA | Mastercard Inc | +1,393 | 24,357 | $12,509,755 | |
| STE | STERIS plc | +1,339 | 40,090 | $8,441,751 | |
| SYK | Stryker Corp | +1,304 | 21,642 | $6,813,767 | |
| MSI | Motorola Solutions, Inc. | +1,212 | 19,069 | $7,919,165 | |
| COST | Costco Wholesale Corp | +1,105 | 10,821 | $10,122,720 | |
| LIN | Linde PLC | +761 | 15,606 | $8,098,577 | |
| GWW | W.W. Grainger, Inc. | +760 | 6,874 | $9,351,389 | |
| IR | Ingersoll Rand Inc. | +597 | 65,223 | $5,347,633 | |
| MSFT | Microsoft Corp | +507 | 27,435 | $10,233,803 | |
| AME | Ametek Inc | +345 | 45,841 | $11,090,771 | |
| FTNT | Fortinet, Inc. | +291 | 91,400 | $14,040,868 | |
| LLY | ELI LILLY & Co | +236 | 12,818 | $15,374,295 | |
| ITW | Illinois Tool Works Inc | +227 | 24,420 | $6,604,877 | |
| IDXX | Idexx Laboratories Inc | +161 | 16,627 | $8,753,117 | |
| No positions match the current search. | |||||
Trimmed
Positions the filer reduced| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| LDOS | Leidos Holdings, Inc. | −29,701 | 6,251 | $643,665 | |
| DHR | Danaher Corp | −24,345 | 1,106 | $210,670 | |
| LRCX | Lam Research Corp | −22,001 | 73,797 | $31,978,454 | |
| INTU | Intuit Inc. | −12,165 | 3,407 | $889,227 | |
| ADP | Automatic Data Processing Inc | −10,727 | 23,646 | $5,295,521 | |
| APH | Amphenol Corp | −6,879 | 106,575 | $37,582,608 | |
| SPGI | S&P Global Inc. | −6,210 | 16,357 | $6,661,551 | |
| MCO | Moodys Corp | −3,313 | 13,750 | $6,227,650 | |
| PWR | Quanta Services, Inc. | −3,248 | 19,621 | $14,127,904 | |
| XOM | ExxonMobil Holdings Corp | −2,975 | 7,233 | $988,895 | |
| CDNS | Cadence Design Systems Inc | −2,409 | 24,899 | $9,345,092 | |
| CTAS | Cintas Corp | −1,555 | 43,970 | $7,478,417 | |
| MPWR | Monolithic Power Systems, Inc. | −1,364 | 10,301 | $14,239,690 | |
| GOOGL | Alphabet Inc. | −1,296 | 56,486 | $20,186,401 | |
| APD | Air Products & Chemicals, Inc. | −1,253 | 23,505 | $6,891,195 | |
| ORLY | O Reilly Automotive Inc | −1,210 | 101,093 | $9,309,654 | |
| ACGL | Arch Capital Group Ltd. | −1,087 | 70,348 | $6,827,976 | |
| AAPL | Apple Inc. | −802 | 51,909 | $15,020,388 | |
| CHD | Church & Dwight Co Inc | −700 | 8,898 | $862,038 | |
| CVX | Chevron Corp | −600 | 3,582 | $593,752 | |
| JPM | Jpmorgan Chase & Co | −600 | 1,651 | $540,421 | |
| WDFC | Wd 40 Co | −500 | 1,500 | $365,460 | |
| TMO | Thermo Fisher Scientific Inc. | −409 | 20,860 | $10,458,369 | |
| ISRG | Intuitive Surgical Inc | −332 | 18,207 | $7,240,559 | |
| BRK-B | Berkshire Hathaway Inc | −300 | 1,200 | $600,468 | |
| No positions match the current search. | |||||
Sold Out
Positions the filer fully exited| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| FICO | Fair Isaac Corp | 2,736 | $2,920,789 | |
| JNJ | Johnson & Johnson | 1,325 | $323,883 | |
| GIS | General Mills Inc | 8,000 | $297,760 | |
| DLR | Digital Realty Trust, Inc. | 1,600 | $288,336 | |
| HON | Honeywell International Inc | 1,089 | $246,146 | |
| BMY | Bristol Myers Squibb Co | 4,000 | $242,600 | |
| ACN | Accenture plc | 1,155 | $229,024 | |
| RTX | RTX Corp | 1,125 | $217,012 | |
| DVY | iShares Select Dividend ETF | 1,600 | $0 | |
| No positions match the current search. | ||||
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| APH |
Amphenol Corp
Technology
|
Reduced | 106,575 | $37,582,608 | 7.92% | |
| LRCX |
Lam Research Corp
Technology
|
Reduced | 73,797 | $31,978,454 | 6.74% | |
| GOOGL |
Alphabet Inc.
Communication Services
|
Reduced | 56,486 | $20,186,401 | 4.25% | |
| LLY |
ELI LILLY & Co
Healthcare
|
Added | 12,818 | $15,374,295 | 3.24% | |
| AAPL |
Apple Inc.
Technology
|
Reduced | 51,909 | $15,020,388 | 3.17% | |
| HEI |
Heico Corp
Industrials
|
Added | 40,081 | $14,276,451 | 3.01% | |
| MPWR |
Monolithic Power Systems, Inc.
Technology
|
Reduced | 10,301 | $14,239,690 | 3.00% | |
| PWR |
Quanta Services, Inc.
Industrials
|
Reduced | 19,621 | $14,127,904 | 2.98% | |
| FTNT |
Fortinet, Inc.
Technology
|
Added | 91,400 | $14,040,868 | 2.96% | |
| MA |
Mastercard Inc
Financial Services
|
Added | 24,357 | $12,509,755 | 2.64% | |
| MNST |
Monster Beverage Corp
Consumer Defensive
|
Added | 124,341 | $11,951,656 | 2.52% | |
| NVDA |
Nvidia Corp
Technology
|
Added | 56,544 | $11,313,888 | 2.38% | |
| AME |
Ametek Inc
Industrials
|
Added | 45,841 | $11,090,771 | 2.34% | |
| PH |
Parker-Hannifin Corp
Industrials
|
Reduced | 11,112 | $10,868,869 | 2.29% | |
| TMO |
Thermo Fisher Scientific Inc.
Healthcare
|
Reduced | 20,860 | $10,458,369 | 2.20% | |
| MSFT |
Microsoft Corp
Technology
|
Added | 27,435 | $10,233,803 | 2.16% | |
| COST |
Costco Wholesale Corp
Consumer Defensive
|
Added | 10,821 | $10,122,720 | 2.13% | |
| FSS |
Federal Signal Corp
Industrials
|
Added | 74,774 | $9,607,711 | 2.02% | |
| GWW |
W.W. Grainger, Inc.
Industrials
|
Added | 6,874 | $9,351,389 | 1.97% | |
| CDNS |
Cadence Design Systems Inc
Technology
|
Reduced | 24,899 | $9,345,092 | 1.97% | |
| ORLY |
O Reilly Automotive Inc
Consumer Cyclical
|
Reduced | 101,093 | $9,309,654 | 1.96% | |
| IDXX |
Idexx Laboratories Inc
Healthcare
|
Added | 16,627 | $8,753,117 | 1.84% | |
| SHW |
Sherwin Williams Co
Basic Materials
|
Added | 25,398 | $8,745,039 | 1.84% | |
| STE |
STERIS plc
Healthcare
|
Added | 40,090 | $8,441,751 | 1.78% | |
| LIN |
Linde PLC
Basic Materials
|
Added | 15,606 | $8,098,577 | 1.71% | |
| MSI |
Motorola Solutions, Inc.
Technology
|
Added | 19,069 | $7,919,165 | 1.67% | |
| AON |
Aon plc
Financial Services
|
Added | 23,559 | $7,814,284 | 1.65% | |
| CTAS |
Cintas Corp
Industrials
|
Reduced | 43,970 | $7,478,417 | 1.58% | |
| ISRG |
Intuitive Surgical Inc
Healthcare
|
Reduced | 18,207 | $7,240,559 | 1.53% | |
| HD |
Home Depot, Inc.
Consumer Cyclical
|
Reduced | 20,032 | $7,064,885 | 1.49% | |
| APD |
Air Products & Chemicals, Inc.
Basic Materials
|
Reduced | 23,505 | $6,891,195 | 1.45% | |
| ACGL |
Arch Capital Group Ltd.
Financial Services
|
Reduced | 70,348 | $6,827,976 | 1.44% | |
| SYK |
Stryker Corp
Healthcare
|
Added | 21,642 | $6,813,767 | 1.44% | |
| SPGI |
S&P Global Inc.
Financial Services
|
Reduced | 16,357 | $6,661,551 | 1.40% | |
| ITW |
Illinois Tool Works Inc
Industrials
|
Added | 24,420 | $6,604,877 | 1.39% | |
| MCO |
Moodys Corp
Financial Services
|
Reduced | 13,750 | $6,227,650 | 1.31% | |
| WCN |
Waste Connections, Inc.
Industrials
|
Added | 35,027 | $5,838,650 | 1.23% | |
| IR |
Ingersoll Rand Inc.
Industrials
|
Added | 65,223 | $5,347,633 | 1.13% | |
| ADP |
Automatic Data Processing Inc
Technology
|
Reduced | 23,646 | $5,295,521 | 1.12% | |
| TJX |
Tjx Companies Inc
Consumer Cyclical
|
Added | 34,486 | $5,224,629 | 1.10% | |
| WMT |
Walmart Inc.
Consumer Defensive
|
Added | 44,837 | $5,078,238 | 1.07% | |
| WSO |
Watsco Inc
Industrials
|
Added | 11,519 | $4,800,312 | 1.01% | |
| INTC |
Intel Corp
Technology
|
Held | 32,000 | $4,468,160 | 0.94% | |
| ETN |
Eaton Corp plc
Industrials
|
NEW | 9,160 | $3,903,259 | 0.82% | |
| AJG |
Arthur J. Gallagher & Co.
Financial Services
|
NEW | 16,330 | $3,748,878 | 0.79% | |
| WAT |
Waters Corp
Healthcare
|
NEW | 7,417 | $2,781,671 | 0.59% | |
| BRK-A |
Berkshire Hathaway Inc
Financial Services
|
Held | 3 | $2,246,550 | 0.47% | |
| L |
Loews Corp
Financial Services
|
Held | 12,000 | $1,358,520 | 0.29% | |
| XOM |
ExxonMobil Holdings Corp
Energy
|
Reduced | 7,233 | $988,895 | 0.21% | |
| INTU |
Intuit Inc.
Technology
|
Reduced | 3,407 | $889,227 | 0.19% |
Showing the top 50 of 67 positions. Create a free account to see every position, past quarters, search, filters and CSV export.
Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.