CARDEROCK CAPITAL MANAGEMENT INC
Sector Allocation
- Technology36.0%$156.5M
- Industrials16.3%$71.0M
- Healthcare15.2%$66.0M
- Financials11.3%$49.3M
- Consumer Discretionary8.2%$35.7M
- Consumer Staples5.9%$25.6M
- Materials5.2%$22.8M
- Utilities1.3%$5.5M
- Energy0.4%$1.9M
- Other0.2%$987,478
AUM History
13fpro.ai/research/fund/carderock-capital-management-inc-1168889
Conviction and streaks
Stable · top 10 = 36.7%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q3 2026
LRCX
$20.9MGOOGL
$19.4MAAPL
$17.0MAPH
$16.8MMSFT
$15.4MLLY
$14.7MFTNT
$14.5MTMO
$14.4MMA
$14.2MNVDA
$12.6MMPWR
$12.2MHEI
$11.8MAME
$11.5MPWR
$11.3MMNST
$10.3MCOST
$9.9MPH
$9.6MMSI
$8.8MCTAS
$8.7MIDXX
$8.7M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/carderock-capital-management-inc-1168889
CARDEROCK CAPITAL MANAGEMENT INC 13F holdings — Q3 2026
$435.3M portfolio (-4.5% QoQ) · 70 holdings · Q3 2026 13F · top 10 are 37% of the stock portfolio
$20.9M
4.8% of stocks
-14%This quarter+3.2%Since filed4+ qtrsHeld$19.4M
4.5% of stocks
-0.3%This quarter-2.0%Since filed4+ qtrsHeld$17.0M
3.9% of stocks
-2%This quarter-1.2%Since filed4+ qtrsHeld$16.8M
3.9% of stocks
+87%This quarter+3.0%Since filed4+ qtrsHeld$15.4M
3.5% of stocks
+9%This quarter+2.2%Since filed4+ qtrsHeld$14.7M
3.4% of stocks
-1%This quarter-2.1%Since filed4+ qtrsHeld$14.5M
3.3% of stocks
-11%This quarter+6.0%Since filed4+ qtrsHeld$14.4M
3.3% of stocks
+3%This quarter+1.2%Since filed4+ qtrsHeld$14.2M
3.3% of stocks
+6%This quarter-3.1%Since filed4+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 3 qtrs in a row$12.6M
2.9% of stocks
-2%This quarter+1.8%Since filed4+ qtrsHeld
All holdings — CARDEROCK CAPITAL MANAGEMENT INC (Q3 2026)
70 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | MONOLITHIC POWER SYSTEMS, INC. | Technology | $12.2M | 2.8% | 9,054 | -12% | 4+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | HEICO CORP | Industrials | $11.8M | 2.7% | 39K | -3% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | AMETEK INC/ | Industrials | $11.5M | 2.6% | 47K | +1% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | QUANTA SERVICES, INC. | Industrials | $11.3M | 2.6% | 18K | -11% | 4+ qtrsTrimmed 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | Monster Beverage Corp | Consumer Staples | $10.3M | 2.4% | 247K | +99% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | COSTCO WHOLESALE CORP /NEW | Consumer Staples | $9.9M | 2.3% | 11K | +0.1% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | Parker-Hannifin Corp | Industrials | $9.6M | 2.2% | 10K | -10% | 4+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | Motorola Solutions, Inc. | Technology | $8.8M | 2.0% | 20K | +4% | 4+ qtrsAdded 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | CINTAS CORP | Consumer Discretionary | $8.7M | 2.0% | 44K | +1% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | IDEXX LABORATORIES INC /DE | Healthcare | $8.7M | 2.0% | 17K | -0.1% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | O REILLY AUTOMOTIVE INC | Consumer Discretionary | $8.6M | 2.0% | 100K | -0.7% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | FEDERAL SIGNAL CORP /DE/ | Industrials | $8.4M | 1.9% | 76K | +2% | 4+ qtrsAdded 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | STERIS plc | Healthcare | $8.4M | 1.9% | 40K | -0.8% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | SHERWIN WILLIAMS CO | Materials | $8.1M | 1.9% | 25K | -1% | 4+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | CADENCE DESIGN SYSTEMS INC | Technology | $7.8M | 1.8% | 24K | -5% | 4+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $GWW | W.W. GRAINGER, INC. | Consumer Discretionary | $7.7M | 1.8% | 6,195 | -10% | |||
| 27 | $LIN | LINDE PLC | Materials | $7.5M | 1.7% | 16K | +1% | |||
| 28 | $ACGL | ARCH CAPITAL GROUP LTD. | Financials | $6.6M | 1.5% | 71K | +2% | |||
| 29 | $SPGI | S&P Global Inc. | Financials | $6.5M | 1.5% | 17K | +1% | |||
| 30 | $ITW | ILLINOIS TOOL WORKS INC | Industrials | $6.5M | 1.5% | 25K | +3% | |||
| 31 | $MCO | MOODYS CORP /DE/ | Financials | $6.4M | 1.5% | 14K | +3% | |||
| 32 | $WAT | WATERS CORP /DE/ | Healthcare | $6.3M | 1.4% | 14K | +94% | |||
| 33 | $ISRG | INTUITIVE SURGICAL INC | Healthcare | $6.2M | 1.4% | 15K | -16% | |||
| 34 | $APD | Air Products & Chemicals, Inc. | Materials | $6.0M | 1.4% | 22K | -8% | |||
| 35 | $ADP | AUTOMATIC DATA PROCESSING INC | Technology | $6.0M | 1.4% | 23K | -2% | |||
| 36 | $SYK | STRYKER CORP | Healthcare | $5.9M | 1.4% | 21K | -0.8% | |||
| 37 | $AON | Aon plc | Financials | $5.8M | 1.3% | 21K | -11% | |||
| 38 | $WCN | Waste Connections, Inc. | Utilities | $5.5M | 1.3% | 35K | +1% | |||
| 39 | $IR | Ingersoll Rand Inc. | Industrials | $5.1M | 1.2% | 68K | +4% | |||
| 40 | $ETN | Eaton Corp plc | Industrials | $4.8M | 1.1% | 11K | +22% | |||
| 41 | $AJG | Arthur J. Gallagher & Co. | Financials | $4.8M | 1.1% | 21K | +28% | |||
| 42 | $WMT | Walmart Inc. | Consumer Staples | $4.6M | 1.1% | 44K | -2% | |||
| 43 | $TJX | TJX COMPANIES INC /DE/ | Consumer Discretionary | $3.9M | 0.9% | 29K | -15% | |||
| 44 | $INTC | INTEL CORP | Technology | $3.8M | 0.9% | 32K | — | |||
| 45 | $HD | HOME DEPOT, INC. | Consumer Discretionary | $3.3M | 0.8% | 12K | -42% | |||
| 46 | $BRK.A | BERKSHIRE HATHAWAY INC | Financials | $2.2M | 0.5% | 3 | — | |||
| 47 | $AMZN | AMAZON COM INC | Consumer Discretionary | $1.9M | 0.4% | 7,652 | New | |||
| 48 | $L | LOEWS CORP | Financials | $1.3M | 0.3% | 12K | — | |||
| 49 | $XOM.R34088 | EXXON MOBIL CORP | Energy | $1.2M | 0.3% | 7,183 | -0.7% | |||
| 50 | $BR | BROADRIDGE FINANCIAL SOLUTIONS, INC. | Industrials | $1.1M | 0.3% | 6,928 | New | |||
| 51 | $INTU | INTUIT INC. | Technology | $924K | 0.2% | 3,353 | -2% | |||
| 52 | $VMC | Vulcan Materials CO | Materials | $904K | 0.2% | 3,696 | New | |||
| 53 | — | ISHARES TR - U.S. TECH ETF | — | $762K | 0.2% | 2,875 | — | |||
| 54 | $CVX | CHEVRON CORP | Energy | $721K | 0.2% | 3,532 | -1% | |||
| 55 | $AZN | ASTRAZENECA PLC | Healthcare | $691K | 0.2% | 4,282 | New | |||
| 56 | $CHD | CHURCH & DWIGHT CO INC /DE/ | Consumer Staples | $671K | 0.1% | 7,125 | -20% | |||
| 57 | $MAR | MARRIOTT INTERNATIONAL INC /MD/ | Consumer Discretionary | $647K | 0.1% | 1,818 | — | |||
| 58 | $CMI | CUMMINS INC | Industrials | $612K | 0.1% | 1,184 | New | |||
| 59 | $BRK.B | BERKSHIRE HATHAWAY INC | Financials | $598K | 0.1% | 1,200 | — | |||
| 60 | $DRI | DARDEN RESTAURANTS INC | Consumer Discretionary | $580K | 0.1% | 3,000 | — | |||
| 61 | $JPM | JPMORGAN CHASE & CO | Financials | $528K | 0.1% | 1,597 | -3% | |||
| 62 | $HCA | HCA Healthcare, Inc. | Healthcare | $504K | 0.1% | 1,182 | New | |||
| 63 | $CMG | CHIPOTLE MEXICAN GRILL INC | Consumer Discretionary | $428K | 0.1% | 13K | -14% | |||
| 64 | $TROW | PRICE T ROWE GROUP INC | Financials | $359K | 0.1% | 3,450 | — | |||
| 65 | $WDFC | WD 40 CO | Materials | $303K | 0.1% | 1,500 | — | |||
| 66 | $PAYX | PAYCHEX INC | Technology | $291K | 0.1% | 2,950 | — | |||
| 67 | $CSX | CSX CORP | Industrials | $265K | 0.1% | 5,700 | — | |||
| 68 | $KO | COCA COLA CO | Consumer Staples | $245K | 0.1% | 2,850 | — | |||
| 69 | $DHR | DANAHER CORP /DE/ | Healthcare | $243K | 0.1% | 1,095 | -1.0% | |||
| 70 | $DNP | DNP SELECT INCOME FUND INC | Other | $226K | 0.1% | 24K | — |
What changed in Q3 2026
Against the previous quarter's 13F: 6 new, 20 added to, 31 trimmed, 3 sold out. Share-count changes; largest moves by dollar size first.
New positions (6)
$AMZNAMAZON COM INC$1.9M
first bought this quarter
$BRBROADRIDGE FINANCIAL SOLUTIONS, INC.$1.1M
first bought this quarter
$VMCVulcan Materials CO$904K
first bought this quarter
$AZNASTRAZENECA PLC$691K
first bought this quarter
$CMICUMMINS INC$612K
first bought this quarter
$HCAHCA Healthcare, Inc.$504K
first bought this quarter
Added to (20)
now $16.8M · held 4+ qtrs
now $10.3M · held 4+ qtrs
$WATWATERS CORP /DE/+94%
now $6.3M · held 2 qtrs, 2 adds in a row
now $15.4M · held 4+ qtrs, 3 adds in a row
$AJGArthur J. Gallagher & Co.+28%
now $4.8M · held 2 qtrs, 2 adds in a row
$ETNEaton Corp plc+22%
now $4.8M · held 2 qtrs, 2 adds in a row
+14 more in the Excel export
Trimmed (31)
now $20.9M · held 4+ qtrs, 3 trims in a row
$HDHOME DEPOT, INC.-42%
now $3.3M · held 4+ qtrs
now $14.5M · held 4+ qtrs
now $12.2M · held 4+ qtrs, 2 trims in a row
now $11.3M · held 4+ qtrs, 3 trims in a row
$ISRGINTUITIVE SURGICAL INC-16%
now $6.2M · held 4+ qtrs, 2 trims in a row
+25 more in the Excel export
Holdings by quarter
Every 13F CARDEROCK CAPITAL MANAGEMENT INC has filed, 41 earlier quarters. Pick one to see what it held then.
Is it too late to follow CARDEROCK CAPITAL MANAGEMENT?
Q3 2026 13F filed with the SEC on Oct 22, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of CARDEROCK CAPITAL MANAGEMENT's top 20 holdings: 76/100 (our AI quality score, weighted by position size; 20 of the 20 are scored)
Top 10 since filing
+0.9%
Value-weighted move of the 10 largest stock positions
Turnover
3%
Last quarter
Top 10 weight
37%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
93%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q4 2025 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
CARDEROCK CAPITAL MANAGEMENT INC disclosed 70 positions worth $435.3M in its Form 13F-HR for Q3 2026, led by $LRCX (LAM RESEARCH CORP) at 4.8% of the equity portfolio, followed by $GOOGL and $AAPL. During the quarter the fund opened 6 new positions and exited 3 — including a new stake in $AMZN and a full exit from $WSO. The portfolio is most concentrated in Technology (36.0% of disclosed assets). All figures are sourced directly from CARDEROCK CAPITAL MANAGEMENT INC’s Form 13F-HR filing with the SEC under CIK 1168889.
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