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Carderock Capital Management

Carderock Capital Management Portfolio holdings

AUM $435M Turnover 12.33%
1-Year Est. Return 26.26%
This Fund
S&P 500
This Quarter Est. Return
+0.12%
1 Year Est. Return
+26.26%
3 Year Est. Return
+97.56%
5 Year Est. Return
+107.02%
10 Year Est. Return
+495.23%
AUM
$435M
AUM Growth
-$20.4M
Cap. Flow
-$10.3M
Cap. Flow %
-2.36%
Top 10 Hldgs %
36.73%
Holding
73
New
6
Increased
18
Reduced
33
Closed
3
Avg Time Held
5.6 years
Top 10 Avg Time Held
1.1 years
Top 20 Avg Time Held
2.9 years

Top Buys

Rank Stock Value
1
WAT icon
Waters Corp
WAT
+$2.8M
2
AMZN icon
Amazon
AMZN
+$1.94M
3
MSFT icon
Microsoft
MSFT
+$1.17M
4
AJG icon
Arthur J. Gallagher & Co
AJG
+$1.16M
5
BR icon
Broadridge
BR
+$1.13M

Top Sells

Rank Stock Value
1
WSO icon
Watsco Inc
WSO
+$4.8M
2
LRCX icon
Lam Research
LRCX
+$3.17M
3
HD icon
Home Depot
HD
+$2.78M
4
FTNT icon
Fortinet
FTNT
+$1.65M
5
MPWR icon
Monolithic Power Systems
MPWR
+$1.63M

Sector Composition

Rank Sector Weight
1 Technology 31.76%
2 Industrials 21.07%
3 Healthcare 15.17%
4 Financials 11.33%
5 Consumer Staples 5.89%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
LRCX icon
1
Lam Research
LRCX
$299B
$20.9M 4.8%
63,639
-10,158
-14% -$3.17M
2021 Q2
21 quarters
GOOGL icon
2
Alphabet (Google) Class A
GOOGL
$3.44T
$19.4M 4.45%
56,333
-153
-0.3% -$53.1K
2015 Q4
43 quarters
AAPL icon
3
Apple
AAPL
$5.03T
$17M 3.9%
50,963
-946
-2% -$304K
2013 Q2
53 quarters
APH icon
4
Amphenol
APH
$196B
$16.8M 3.86%
199,463
-13,687
-6% -$1.1M
2013 Q2
53 quarters
MSFT icon
5
Microsoft
MSFT
$3.88T
$15.4M 3.53%
29,956
+2,521
+9% +$1.17M
2016 Q4
39 quarters
LLY icon
6
Eli Lilly
LLY
$1.26T
$14.7M 3.37%
12,679
-139
-1% -$164K
2024 Q2
9 quarters
FTNT icon
7
Fortinet
FTNT
$100B
$14.5M 3.34%
81,241
-10,159
-11% -$1.65M
2020 Q4
23 quarters
TMO icon
8
Thermo Fisher Scientific
TMO
$258B
$14.4M 3.32%
21,389
+529
+3% +$314K
2013 Q2
53 quarters
MA icon
9
Mastercard
MA
$556B
$14.2M 3.26%
25,724
+1,367
+6% +$769K
2013 Q2
53 quarters
NVDA icon
10
NVIDIA
NVDA
$4.94T
$12.6M 2.9%
55,347
-1,197
-2% -$257K
2024 Q2
9 quarters
MPWR icon
11
Monolithic Power Systems
MPWR
$59.1B
$12.2M 2.8%
9,054
-1,247
-12% -$1.63M
2024 Q1
10 quarters
HEI icon
12
HEICO Corp
HEI
$44.9B
$11.8M 2.72%
39,073
-1,008
-3% -$343K
2023 Q1
14 quarters
AME icon
13
Ametek
AME
$55.3B
$11.5M 2.65%
46,503
+662
+1% +$160K
2013 Q2
53 quarters
PWR icon
14
Quanta Services
PWR
$93.5B
$11.3M 2.59%
17,526
-2,095
-11% -$1.35M
2022 Q3
16 quarters
MNST icon
15
Monster Beverage
MNST
$92.7B
$10.3M 2.36%
246,880
-1,802
-0.7% -$83.4K
2024 Q2
9 quarters
COST icon
16
Costco
COST
$449B
$9.9M 2.26%
10,830
+9
+0.1% +$8.4K
2015 Q4
43 quarters
PH icon
17
Parker-Hannifin
PH
$113B
$9.6M 2.2%
10,020
-1,092
-10% -$1.07M
2023 Q1
14 quarters
MSI icon
18
Motorola Solutions
MSI
$81.3B
$8.84M 2.03%
19,819
+750
+4% +$338K
2025 Q2
5 quarters
CTAS icon
19
Cintas
CTAS
$87.3B
$8.68M 1.99%
44,495
+525
+1% +$104K
2020 Q2
25 quarters
IDXX icon
20
Idexx Laboratories
IDXX
$43.4B
$8.67M 1.99%
16,609
-18
-0.1% -$9.9K
2013 Q2
53 quarters
ORLY icon
21
O'Reilly Automotive
ORLY
$70.9B
$8.58M 1.97%
100,424
-669
-0.7% -$58.9K
2013 Q2
53 quarters
FSS icon
22
Federal Signal
FSS
$6.87B
$8.44M 1.94%
76,151
+1,377
+2% +$165K
2025 Q4
3 quarters
STE icon
23
Steris
STE
$22.1B
$8.35M 1.92%
39,766
-324
-0.8% -$71.9K
2023 Q4
11 quarters
SHW icon
24
Sherwin-Williams
SHW
$80.4B
$8.09M 1.86%
25,030
-368
-1% -$124K
2017 Q1
38 quarters
CDNS icon
25
Cadence Design Systems
CDNS
$90B
$7.84M 1.8%
23,731
-1,168
-5% -$384K
2020 Q4
23 quarters
1
2 3

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Carderock Capital Management's Q3 2026 Portfolio in Review

As of Q3 2026, Carderock Capital Management held 73 positions worth $435M, down 4.5% from $456M the previous quarter. Its ten largest holdings account for 37% of the portfolio.

Carderock Capital Management's Q3 2026 filing shows 6 new, 18 increased, 33 reduced and 3 closed positions. Its largest new stake was Amazon: 7,652 shares worth $1.91M. The largest sale was Watsco Inc, an estimated $4.8M.

By sector, the portfolio is most concentrated in Technology at 32% of assets, up from 32% a quarter earlier, followed by Industrials and Healthcare.

  • Carderock Capital Management's largest Q3 2026 buy was Amazon: 7,652 shares worth $1.91M.
  • Carderock Capital Management added most to Waters Corp in Q3 2026, an estimated $2.8M increase.
  • Carderock Capital Management's biggest Q3 2026 reduction was Lam Research, cutting an estimated $3.17M.
  • Carderock Capital Management fully exited Watsco Inc in Q3 2026, selling an estimated $4.8M.
  • Carderock Capital Management's ten largest holdings make up 37% of its $435M portfolio in Q3 2026.
  • Carderock Capital Management opened 6 new positions and closed 3 in Q3 2026.
  • Carderock Capital Management's portfolio value fell 4.5% quarter-over-quarter to $435M.

Based on Carderock Capital Management's 13F filing for Q3 2026, filed 22 Oct 2026.