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Carderock Capital Management 13F Portfolio

Portfolio Manager
Carderock Capital Management INC
Performance
+20.59% (2026 Q2)
AUM (13F)
$455.76M
# of Holdings
67
Performance Rank
Allocation (Top 20)
60.29%
Latest filing
Q2 2026

Carderock Capital Management INC Holdings Map

Top 50 Carderock Capital Management INC Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
LRCX
LAM RESEARCH CORP
7.02%73.8K$32.0M
-22.97%(-22.00K)
2025-Q2: 118.2K shares2025-Q3: 121.4K shares2025-Q4: 105.9K shares2026-Q1: 95.8K shares2026-Q2: 73.8K shares
$59.24(+469.60%)
2026-06-30
GOOGL
ALPHABET INC
4.43%56.5K$20.2M
-2.24%(-1.30K)
2025-Q2: 50.2K shares2025-Q3: 51.9K shares2025-Q4: 58.7K shares2026-Q1: 57.8K shares2026-Q2: 56.5K shares
$100.42(+243.26%)
2026-06-30
APH
AMPHENOL CORP
4.12%106.6K$18.8M
-6.06%(-6.88K)
2025-Q2: 137.3K shares2025-Q3: 134.0K shares2025-Q4: 123.8K shares2026-Q1: 113.5K shares2026-Q2: 106.6K shares
$13.74(+1124.09%)
2026-06-30
LLY
ELI LILLY & CO
3.37%12.8K$15.4M
+1.88%(+236)
2025-Q2: 11.0K shares2025-Q3: 11.2K shares2025-Q4: 12.2K shares2026-Q1: 12.6K shares2026-Q2: 12.8K shares
$844.46(+39.66%)
2026-06-30
AAPL
APPLE INC
3.3%51.9K$15.0M
-1.52%(-802)
2025-Q2: 44.3K shares2025-Q3: 45.5K shares2025-Q4: 51.3K shares2026-Q1: 52.7K shares2026-Q2: 51.9K shares
$72.19(+323.04%)
2026-06-30
HEI
HEICO CORP NEW
3.13%40.1K$14.3M
+6.81%(+2.56K)
2025-Q2: 35.9K shares2025-Q3: 37.0K shares2025-Q4: 37.3K shares2026-Q1: 37.5K shares2026-Q2: 40.1K shares
$188.32(+98.96%)
2026-06-30
MPWR
MONOLITHIC PWR SYS INC
3.12%10.3K$14.2M
-11.69%(-1.36K)
2025-Q2: 5.7K shares2025-Q3: 8.5K shares2025-Q4: 11.5K shares2026-Q1: 11.7K shares2026-Q2: 10.3K shares
$783.08(+82.65%)
2026-06-30
PWR
QUANTA SVCS INC
3.1%19.6K$14.1M
-14.20%(-3.25K)
2025-Q2: 23.4K shares2025-Q3: 24.4K shares2025-Q4: 23.9K shares2026-Q1: 22.9K shares2026-Q2: 19.6K shares
$159.19(+338.56%)
2026-06-30
FTNT
FORTINET INC
3.08%91.4K$14.0M
+0.32%(+291)
2025-Q2: 88.6K shares2025-Q3: 88.5K shares2025-Q4: 94.1K shares2026-Q1: 91.1K shares2026-Q2: 91.4K shares
$55.34(+183.30%)
2026-06-30
MA
MASTERCARD INCORPORATED
2.74%24.4K$12.5M
+6.07%(+1.39K)
2025-Q2: 19.1K shares2025-Q3: 19.6K shares2025-Q4: 22.4K shares2026-Q1: 23.0K shares2026-Q2: 24.4K shares
$232.17(+144.15%)
2026-06-30

About Carderock Capital Management INCโ€™s portfolio

Carderock Capital Management INC reports $455.76M in US-listed equity holdings across 67 positions in its most recent 13F filing. Its largest disclosed positions are LRCX (7.0%), GOOGL (4.4%) and APH (4.1%). The top 20 holdings account for 60.29% of reported assets. Its disclosed equity book has returned +61.99% on a three-year cumulative basis. Figures reflect the Q2 2026 filing.

Portfolio concentration

Portfolio concentration
LRCX โ€” 7.1% ($31.98M)GOOGL โ€” 4.5% ($20.19M)APH โ€” 4.2% ($18.79M)LLY โ€” 3.4% ($15.37M)AAPL โ€” 3.4% ($15.02M)HEI โ€” 3.2% ($14.28M)MPWR โ€” 3.2% ($14.24M)PWR โ€” 3.2% ($14.13M)FTNT โ€” 3.1% ($14.04M)MA โ€” 2.8% ($12.51M)Other โ€” 61.9% ($277.21M)
38%in top 10
  • LRCX7.1%
  • GOOGL4.5%
  • APH4.2%
  • LLY3.4%
  • AAPL3.4%
  • HEI3.2%
  • MPWR3.2%
  • PWR3.2%
  • FTNT3.1%
  • MA2.8%
  • Other61.9%

Portfolio changes

What the fund actually did

Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.

New buys
3
ETNEATON CORP PLC0.9%
AJGGALLAGHER ARTHUR J & CO0.8%
WATWATERS CORP0.6%
Added to
24
FSSFEDERAL SIGNAL CORP+118.6%
WSOWATSCO INC+215.6%
GWWWW GRAINGER INC+12.4%
COSTCOSTCO WHOLESALE CORPORATION+11.4%
+20 more
Trimmed
20
LRCXLAM RESEARCH CORP-23.0%
INTUINTUIT-78.1%
SPGIS&P GLOBAL INC-27.5%
ADPAUTOMATIC DATA PROCESSING IN-31.2%
+16 more

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Source filings

Holdings on this page are parsed from Carderock Capital Management INCโ€™s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1168889). View Carderock Capital Management INCโ€™s 13F filings on SEC

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