Carderock Capital Management Inc Top Holdings and 13F Report (2026) About Carderock Capital Management IncInvestment ActivityCarderock Capital Management Inc has $435.33 million in total holdings as of September 30, 2026.Carderock Capital Management Inc owns shares of 70 different stocks, but just 32 companies or ETFs make up 80% of its holdings.Approximately 6.64% of the portfolio was purchased this quarter.About 5.63% of the portfolio was sold this quarter.This quarter, Carderock Capital Management Inc has purchased 67 new stocks and bought additional shares in 20 stocks.Carderock Capital Management Inc sold shares of 30 stocks and completely divested from 4 stocks this quarter.Largest Holdings LAM RESEARCH CORP $20,906,048Alphabet $19,383,059Apple $16,971,751Amphenol $16,814,731Microsoft $15,364,432 Largest New Holdings this Quarter 023135106 - Amazon.com $1,906,496 Holding30233Q108 - EXXONMOBIL HOLDINGS CORP $1,169,033 Holding11133T103 - Broadridge Financial Solutions $1,116,101 Holding929160109 - Vulcan Materials $904,152 HoldingG0593M107 - AstraZeneca $691,415 Holding Largest Purchases this Quarter Amphenol 92,888 shares (about $7.83M)Monster Beverage 122,539 shares (about $5.10M)Waters 6,987 shares (about $3.07M)Amazon.com 7,652 shares (about $1.91M)Microsoft 2,521 shares (about $1.29M) Largest Sales this Quarter LAM RESEARCH CORP 10,158 shares (about $3.34M)Home Depot 8,453 shares (about $2.40M)Fortinet 10,159 shares (about $1.82M)Monolithic Power Systems 1,247 shares (about $1.68M)Quanta Services 2,095 shares (about $1.35M) Sector Allocation Over TimeMap of 500 Largest Holdings ofCarderock Capital Management Inc Selling Neutral Buying Latest 13F Holdings and Changes Since Previous Quarterly FilingIssuer NameHoldings ValueApproximate Purchase/SaleChange in SharesShares Held% of PortfolioSectorLAM RESEARCH CORP$20,906,048$3,337,005 ▼-13.8%63,6394.8%COM NEWGOOGLAlphabet$19,383,059$52,644 ▼-0.3%56,3334.5%Communication ServicesAAPLApple$16,971,751$315,038 ▼-1.8%50,9633.9%TechnologyAPHAmphenol$16,814,731$7,830,458 ▲87.2%199,4633.9%TechnologyMSFTMicrosoft$15,364,432$1,293,021 ▲9.2%29,9563.5%TechnologyLLYEli Lilly and Company$14,670,617$160,834 ▼-1.1%12,6793.4%HealthcareFTNTFortinet$14,522,641$1,816,023 ▼-11.1%81,2413.3%TechnologyTMOThermo Fisher Scientific$14,438,644$357,101 ▲2.5%21,3893.3%HealthcareMAMastercard$14,186,014$753,859 ▲5.6%25,7243.3%FinanceNVDANVIDIA$12,640,165$273,371 ▼-2.1%55,3472.9%TechnologyMPWRMonolithic Power Systems$12,197,730$1,679,983 ▼-12.1%9,0542.8%TechnologyHEIHeico$11,846,152$305,605 ▼-2.5%39,0732.7%IndustrialsAMEAMETEK$11,520,188$163,997 ▲1.4%46,5032.6%TechnologyPWRQuanta Services$11,260,630$1,346,058 ▼-10.7%17,5262.6%IndustrialsMNSTMonster Beverage$10,275,146$5,100,073 ▲98.6%246,8802.4%Consumer StaplesCOSTCostco Wholesale$9,858,982$8,193 ▲0.1%10,8302.3%Consumer StaplesPHParker-Hannifin$9,573,308$1,043,319 ▼-9.8%10,0202.2%IndustrialsMSIMotorola Solutions$8,838,679$334,477 ▲3.9%19,8192.0%TechnologyCTASCintas$8,679,195$102,407 ▲1.2%44,4952.0%IndustrialsIDXXIDEXX Laboratories$8,673,054$9,399 ▼-0.1%16,6092.0%HealthcareORLYO'Reilly Automotive$8,577,214$57,139 ▼-0.7%100,4242.0%Consumer DiscretionaryFSSFederal Signal$8,436,769$152,558 ▲1.8%76,1511.9%IndustrialsSTESTERIS$8,351,258$68,043 ▼-0.8%39,7661.9%HealthcareSHWSherwin-Williams$8,091,448$118,963 ▼-1.4%25,0301.9%MaterialsCDNSCadence Design Systems$7,835,621$385,656 ▼-4.7%23,7311.8%TechnologyGWWW.W. Grainger$7,717,483$845,871 ▼-9.9%6,1951.8%IndustrialsLINDE PLC$7,497,571$90,183 ▲1.2%15,7961.7%SHSACGLArch Capital Group$6,603,278$105,937 ▲1.6%71,4951.5%FinanceSPGIS&P Global$6,539,524$87,178 ▲1.4%16,5781.5%FinanceITWIllinois Tool Works$6,452,325$169,548 ▲2.7%25,0791.5%IndustrialsMCOMoody's$6,445,467$201,180 ▲3.2%14,1931.5%FinanceWATWaters$6,328,974$3,070,018 ▲94.2%14,4041.5%HealthcareISRGIntuitive Surgical$6,222,252$1,181,260 ▼-16.0%15,3021.4%HealthcareAPDAir Products and Chemicals$6,025,905$513,891 ▼-7.9%21,6581.4%MaterialsADPAutomatic Data Processing$5,981,057$121,030 ▼-2.0%23,1771.4%IndustrialsSYKStryker$5,910,696$49,295 ▼-0.8%21,4631.4%HealthcareAONAON$5,783,386$737,039 ▼-11.3%20,8961.3%FinanceWCNWaste Connections$5,460,513$68,807 ▲1.3%35,4741.3%IndustrialsIRIngersoll Rand$5,074,732$175,833 ▲3.6%67,5641.2%IndustrialsETNEaton$4,811,463$875,319 ▲22.2%11,1971.1%IndustrialsAJGArthur J. Gallagher & Co.$4,778,220$1,053,184 ▲28.3%20,9471.1%FinanceWALMART INC$4,581,625$77,836 ▼-1.7%44,0881.1%COMTJXTJX Companies$3,868,083$694,760 ▼-15.2%29,2350.9%Consumer DiscretionaryINTCIntel$3,847,3600.0%32,0000.9%TechnologyHDHome Depot$3,294,110$2,404,794 ▼-42.2%11,5790.8%Consumer DiscretionaryBRK.ABerkshire Hathaway$2,241,0150.0%30.5%FinanceAMZNAmazon.com$1,906,496$1,906,496 ▲New Holding7,6520.4%Consumer DiscretionaryLLoews$1,253,1600.0%12,0000.3%FinanceEXXONMOBIL HOLDINGS CORP$1,169,033$1,169,033 ▲New Holding7,1830.3%COM SHSBRBroadridge Financial Solutions$1,116,101$1,116,101 ▲New Holding6,9280.3%IndustrialsINTUIntuit$924,456$14,888 ▼-1.6%3,3530.2%TechnologyVMCVulcan Materials$904,152$904,152 ▲New Holding3,6960.2%MaterialsIYWiShares U.S. Technology ETF$761,5880.0%2,8750.2%ETFCVXChevron$721,270$10,211 ▼-1.4%3,5320.2%EnergyAZNCFAstraZeneca$691,415$691,415 ▲New Holding4,2820.2%HealthcareCHDChurch & Dwight$671,318$167,052 ▼-19.9%7,1250.2%Consumer StaplesMARMarriott International$646,6080.0%1,8180.1%Consumer DiscretionaryCMICummins$611,619$611,619 ▲New Holding1,1840.1%IndustrialsBRK.BBerkshire Hathaway$597,5400.0%1,2000.1%FinanceDRIDarden Restaurants$579,7500.0%3,0000.1%Consumer DiscretionaryJPMJPMorgan Chase & Co.$528,336$17,865 ▼-3.3%1,5970.1%FinanceHCAHCA Healthcare$504,407$504,407 ▲New Holding1,1820.1%HealthcareCMGChipotle Mexican Grill$428,194$70,130 ▼-14.1%13,4020.1%Consumer DiscretionaryTROWT. Rowe Price Group$358,9730.0%3,4500.1%FinanceWDFCWD-40$302,9550.0%1,5000.1%Consumer StaplesPAYXPaychex$290,5750.0%2,9500.1%IndustrialsCSXCSX$265,1070.0%5,7000.1%IndustrialsKOCoca-Cola$245,3280.0%2,8500.1%Consumer StaplesDHRDanaher$242,597$2,437 ▼-1.0%1,0950.1%HealthcareDNPDNP Select Income Fund$225,8900.0%23,6040.1%FinanceWSOWatsco$0$4,800,313 ▼-100.0%00.0%IndustrialsXOMExxonMobil$0$988,896 ▼-100.0%00.0%EnergyLDOSLeidos$0$643,665 ▼-100.0%00.0%IndustrialsAZOAutoZone$0$207,736 ▼-100.0%00.0%Consumer DiscretionaryShowing largest 100 holdings. View all holdings. More Institutional Buying and Selling Information SEC Filings and Trading Data SEC Filings 13F Filings Top 13F Buys Top 13F Sells Unlock superior investment research and tools. Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools and reports. Get MarketBeat All Access MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. 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