Institutional manager

CONGRESS ASSET MANAGEMENT CO

Holds positions in 152 of the S&P 500, worth $7.49bn as reported for the quarter ended 31-mar-2026.

Positions held152of 488 index companies covered

Reported value$7.49bnS&P 500 positions only

Top ten weight35%how concentrated the book is

Filing entities1single filer

Largest positions

The 60 biggest by reported value, of 152 held. The rest are smaller than every one of these.

NvidiaNVDA2.5m$438mInformation Technology Apple Inc.AAPL1.6m$414mInformation Technology Alphabet Inc. (Class A)GOOGL1.1m$324mCommunication Services MicrosoftMSFT638,107$236mInformation Technology BroadcomAVGO757,731$235mInformation Technology CostcoCOST216,024$215mConsumer Staples Arista NetworksANET1.7m$213mInformation Technology TJX CompaniesTJX1.2m$192mConsumer Discretionary AmazonAMZN903,120$188mConsumer Discretionary Howmet AerospaceHWM796,404$184mIndustrials Eaton CorporationETN503,728$180mIndustrials Meta PlatformsMETA303,914$174mCommunication Services GE VernovaGEV198,825$174mIndustrials Visa Inc.V562,093$170mFinancials Goldman SachsGS189,415$160mFinancials WelltowerWELL750,200$148mReal Estate TKO Group HoldingsTKO727,806$147mCommunication Services Intuitive SurgicalISRG312,410$144mHealth Care Parker HannifinPH159,176$143mIndustrials O'Reilly AutomotiveORLY1.5m$141mConsumer Discretionary Martin Marietta MaterialsMLM237,971$140mMaterials Williams CompaniesWMB1.8m$132mEnergy EcolabECL474,438$126mMaterials AmphenolAPH967,292$122mInformation Technology ASML HoldingASML82,626$109m Hilton WorldwideHLT352,636$107mConsumer Discretionary Boston ScientificBSX1.6m$102mHealth Care UberUBER1.4m$100mIndustrials Thermo Fisher ScientificTMO200,288$98mHealth Care Lilly (Eli)LLY104,102$96mHealth Care Idexx LaboratoriesIDXX166,686$94mHealth Care Quanta ServicesPWR170,192$93mIndustrials Moody's CorporationMCO213,331$93mFinancials Monolithic Power SystemsMPWR83,343$91mInformation Technology Casey'sCASY118,690$86mConsumer Staples ServiceNowNOW815,871$85mInformation Technology EmcorEME110,208$81mIndustrials Tapestry, Inc.TPR568,566$80mConsumer Discretionary Comfort Systems USAFIX55,192$76mIndustrials Palantir TechnologiesPLTR484,714$71mInformation Technology Raymond James FinancialRJF471,389$68mFinancials Interactive BrokersIBKR971,529$65mFinancials FastenalFAST1.1m$50mIndustrials Ross StoresROST218,966$47mConsumer Discretionary Tractor SupplyTSCO889,027$40mConsumer Discretionary Qnity ElectronicsQ340,705$39mInformation Technology SterisSTE150,427$33mHealth Care TeradyneTER108,447$32mInformation Technology CintasCTAS189,811$32mIndustrials JPMorgan ChaseJPM107,601$32mFinancials DatadogDDOG266,506$31mInformation Technology Caterpillar Inc.CAT43,188$31mIndustrials Fair IsaacFICO28,417$30mInformation Technology Expedia GroupEXPE125,929$29mConsumer Discretionary D. R. HortonDHI205,891$28mConsumer Discretionary Analog DevicesADI82,159$26mInformation Technology PTC Inc.PTC172,771$25mInformation Technology Home Depot (The)HD74,780$25mConsumer Discretionary Dell TechnologiesDELL146,071$24mInformation Technology NetflixNFLX235,250$23mCommunication Services

What this page is not

Positions in the companies this site covers, from 13F filings, which report US listed, long, US custodied holdings. A manager's real book is larger than this in every case: anything outside the index, outside US custody, held through derivatives, or below its reporting obligation is not here.