AI Portfolio Summary
In 2026 Q1, CARDEROCK CAPITAL MANAGEMENT INC maintained a portfolio of 77 distinct positions. The most significant new addition to the portfolio was BERKSHIRE HATHAWAY I, which now represents 0.53% of the total fund value. They heavily accumulated shares in APPLE INC, increasing their position by 2.7%. The fund also reduced its exposure to FAIR ISAAC CORP by 47.8%.
Total Positions
77
Quarter
2026 Q1
Top Holding
LRCX (5.1%)
Top 10 Concentration
33.1%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 77
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
LRCX
LAM RESEARCH CO...
|
Technology | 5.06% | 4.39% |
#1
1
Prev: #2
|
4.5 | -10,138 | -9.6% |
P
S
|
95,798 | $20,468,201 | 2021 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
GOOGL
ALPHABET INC
|
Communication Services | 4.10% | 4.45% |
#2
1
Prev: #1
|
3.6 | -869 | -1.5% |
P
S
|
57,782 | $16,615,792 | 2015 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
APH
AMPHENOL CORP N...
|
Technology | 3.54% | 4.05% |
#3
Prev: #3
|
2.9 | -10,321 | -8.3% |
P
S
|
113,454 | $14,334,913 | 2007 Q3 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
AAPL
APPLE INC
|
Technology | 3.30% | 3.38% |
#4
Prev: #4
|
2.3 | 1,376 | 2.7% |
P
S
|
52,711 | $13,377,565 | 2009 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
MPWR
MONOLITHIC PWR ...
|
Technology | 3.15% | 2.52% |
#5
7
Prev: #12
|
2.3 | 196 | 1.7% |
P
S
|
11,665 | $12,753,928 | 2024 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
PWR
QUANTA SVCS INC
|
Industrials | 3.10% | 2.45% |
#6
8
Prev: #14
|
1.7 | -1,045 | -4.4% |
P
S
|
22,869 | $12,555,538 | 2022 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
LLY
ELI LILLY & CO
|
Healthcare | 2.86% | 3.17% |
#7
2
Prev: #5
|
1.6 | 398 | 3.3% |
P
S
|
12,582 | $11,572,546 | 2023 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
MA
MASTERCARD INCO...
|
Financial Services | 2.83% | 3.10% |
#8
2
Prev: #6
|
1.6 | 521 | 2.3% |
P
S
|
22,964 | $11,474,192 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
TMO
THERMO FISHER S...
|
Healthcare | 2.58% | 2.95% |
#9
1
Prev: #8
|
1.5 | 252 | 1.2% |
P
S
|
21,269 | $10,454,352 | 2008 Q3 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
HEI
HEICO CORP NEW
|
Industrials | 2.54% | 2.93% |
#10
Prev: #10
|
1.5 | 212 | 0.6% |
P
S
|
37,525 | $10,289,355 | 2023 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
PH
PARKER-HANNIFIN...
|
Industrials | 2.50% | 2.40% |
#11
4
Prev: #15
|
1.5 | 63 | 0.6% |
P
S
|
11,319 | $10,133,222 | 2008 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
MSFT
MICROSOFT CORP
|
Technology | 2.46% | 3.08% |
#12
5
Prev: #7
|
1.5 | 659 | 2.5% |
P
S
|
26,928 | $9,967,938 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
AME
AMETEK INC
|
Industrials | 2.41% | 2.18% |
#13
5
Prev: #18
|
1.5 | 1,707 | 3.9% |
P
S
|
45,496 | $9,752,523 | 2006 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
COST
COSTCO WHSL COR...
|
Consumer Defensive | 2.39% | 1.98% |
#14
12
Prev: #26
|
1.5 | 228 | 2.4% |
P
S
|
9,716 | $9,681,314 | 2014 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
SPGI
S&P GLOBAL INC
|
Financial Services | 2.37% | 2.94% |
#15
6
Prev: #9
|
1.4 | -674 | -2.9% |
P
S
|
22,567 | $9,598,648 | 2020 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
ORLY
OREILLY AUTOMOT...
|
Consumer Cyclical | 2.33% | 2.27% |
#16
1
Prev: #17
|
1.4 | -611 | -0.6% |
P
S
|
102,303 | $9,443,590 | 2010 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
NVDA
NVIDIA CORPORAT...
|
Technology | 2.31% | 2.14% |
#17
4
Prev: #21
|
2.9 | 6,352 | 13.4% |
P
S
|
53,610 | $9,349,597 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
IDXX
IDEXX LABS INC
|
Healthcare | 2.29% | 2.75% |
#18
7
Prev: #11
|
1.4 | -309 | -1.8% |
P
S
|
16,466 | $9,252,081 | 2002 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
STE
STERIS PLC
|
Healthcare | 2.12% | 2.28% |
#19
3
Prev: #16
|
1.3 | 1,666 | 4.5% |
P
S
|
38,751 | $8,569,009 | 2023 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
ISRG
INTUITIVE SURGI...
|
Healthcare | 2.11% | 2.50% |
#20
7
Prev: #13
|
1.3 | 295 | 1.6% |
P
S
|
18,539 | $8,546,294 | 2011 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
MNST
MONSTER BEVERAG...
|
Consumer Defensive | 2.09% | 2.12% |
#21
1
Prev: #22
|
1.3 | 2,472 | 2.2% |
P
S
|
116,496 | $8,441,300 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
MSI
MOTOROLA SOLUTI...
|
Technology | 1.91% | 1.06% |
#22
19
Prev: #41
|
3.8 | 6,449 | 56.5% |
P
S
|
17,857 | $7,749,402 | 2021 Q3 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
CTAS
CINTAS CORP
|
Industrials | 1.90% | 2.09% |
#23
Prev: #23
|
1.3 | -433 | -0.9% |
P
S
|
45,525 | $7,700,099 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
SHW
SHERWIN WILLIAM...
|
Basic Materials | 1.90% | 1.88% |
#24
5
Prev: #29
|
1.3 | -56 | -0.2% |
P
S
|
23,948 | $7,676,531 | 2017 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
CDNS
CADENCE DESIGN ...
|
Technology | 1.87% | 2.06% |
#25
Prev: #25
|
1.2 | 147 | 0.5% |
P
S
|
27,308 | $7,588,074 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
FTNT
FORTINET INC
|
Technology | 1.84% | 1.81% |
#26
4
Prev: #30
|
1.2 | -3,015 | -3.2% |
P
S
|
91,109 | $7,445,427 | 2020 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
MCO
MOODYS CORP
|
Financial Services | 1.84% | 2.17% |
#27
8
Prev: #19
|
1.2 | -505 | -2.9% |
P
S
|
17,063 | $7,443,734 | 2006 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
LIN
LINDE PLC
|
Basic Materials | 1.82% | 1.03% |
#28
14
Prev: #42
|
3.2 | 4,874 | 48.9% |
P
S
|
14,845 | $7,359,557 | 2025 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
APD
AIR PRODS & CHE...
|
Basic Materials | 1.78% | 1.26% |
#29
10
Prev: #39
|
2.7 | 3,764 | 17.9% |
P
S
|
24,758 | $7,191,951 | 2015 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
ADP
AUTOMATIC DATA ...
|
Technology | 1.73% | 2.09% |
#30
6
Prev: #24
|
1.2 | 866 | 2.6% |
P
S
|
34,373 | $6,983,906 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
AON
AON PLC
|
Financial Services | 1.72% | 1.92% |
#31
4
Prev: #27
|
1.2 | -852 | -3.8% |
P
S
|
21,586 | $6,967,529 | 2015 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
ACGL
ARCH CAP GROUP ...
|
Financial Services | 1.69% | 1.62% |
#32
1
Prev: #33
|
1.2 | 1,556 | 2.2% |
P
S
|
71,435 | $6,857,046 | 2023 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
INTU
INTUIT
|
Technology | 1.66% | 1.90% |
#33
5
Prev: #28
|
3.2 | 3,704 | 31.2% |
P
S
|
15,572 | $6,733,021 | 2012 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
SYK
STRYKER CORPORA...
|
Healthcare | 1.65% | 1.66% |
#34
2
Prev: #32
|
1.2 | 886 | 4.6% |
P
S
|
20,338 | $6,682,863 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
GWW
WW GRAINGER INC
|
Industrials | 1.65% | 1.47% |
#35
Prev: #35
|
1.2 | 115 | 1.9% |
P
S
|
6,114 | $6,669,212 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
HD
HOME DEPOT INC
|
Consumer Cyclical | 1.64% | 1.68% |
#36
5
Prev: #31
|
1.2 | -12 | -0.1% |
P
S
|
20,190 | $6,640,289 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
ITW
ILLINOIS TOOL W...
|
Industrials | 1.56% | 1.41% |
#37
Prev: #37
|
1.1 | 555 | 2.3% |
P
S
|
24,193 | $6,297,196 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
LDOS
LEIDOS HOLDINGS...
|
Technology | 1.38% | 1.55% |
#38
4
Prev: #34
|
1.1 | 454 | 1.3% |
P
S
|
35,952 | $5,591,255 | 2025 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
WCN
WASTE CONNECTIO...
|
Industrials | 1.35% | 1.41% |
#39
3
Prev: #36
|
1.0 | 416 | 1.3% |
P
S
|
33,628 | $5,462,532 | 2020 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
IR
INGERSOLL RAND ...
|
Industrials | 1.28% | 1.21% |
#40
Prev: #40
|
1.0 | 1,768 | 2.8% |
P
S
|
64,626 | $5,177,835 | 2023 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
WMT
WALMART INC
|
Consumer Defensive | 1.23% | 0.40% |
#41
6
Prev: #47
|
3.5 | 25,301 | 171.7% |
P
S
|
40,040 | $4,976,171 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
DHR
DANAHER CORPORA...
|
Healthcare | 1.19% | 1.36% |
#42
4
Prev: #38
|
1.0 | 986 | 4.0% |
P
S
|
25,451 | $4,825,510 | 2005 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
TJX
TJX COS INC NEW
|
Consumer Cyclical | 1.11% | 0.44% |
#43
2
Prev: #45
|
3.4 | 16,265 | 137.2% |
P
S
|
28,118 | $4,490,445 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
FSS
FEDERAL SIGNAL ...
|
Industrials | 0.91% | 0.41% |
#44
2
Prev: #46
|
3.4 | 18,616 | 119.4% |
P
S
|
34,202 | $3,698,604 | 2025 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
FICO
FAIR ISAAC CORP
|
Technology | 0.72% | 2.15% |
#45
25
Prev: #20
|
0.3 | -2,505 | -47.8% |
P
S
|
2,736 | $2,920,789 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
BRK/A
BERKSHIRE HATHA...
|
Financial Services | 0.53% | — |
#46
Prev: #—
|
3.7 | 3 | no change |
NEW
|
3 | $2,154,420 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
XOM
EXXON MOBIL COR...
|
Energy | 0.43% | 0.31% |
#47
2
Prev: #49
|
0.7 | -400 | -3.8% |
P
S
|
10,208 | $1,731,889 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
INTC
INTEL CORP
|
Technology | 0.35% | — |
#48
Prev: #—
|
3.6 | 32,000 | no change |
NEW
|
32,000 | $1,412,160 | 2001 Q4 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
WSO
WATSCO INC
|
Industrials | 0.33% | 0.23% |
#49
2
Prev: #51
|
2.6 | 828 | 29.3% |
P
S
|
3,650 | $1,327,834 | 2024 Q2 | 13F Filing | 2026-03-31 | 2026-04-10 | |||
|
L
LOEWS CORP
|
Financial Services | 0.32% | — |
#50
Prev: #—
|
3.6 | 12,000 | no change |
NEW
|
12,000 | $1,280,880 | 2026 Q1 | 13F Filing | 2026-03-31 | 2026-04-10 |
Showing 1-50 of 77 holdings