Oberweis Asset Management portfolio

What changed this quarter

152 positions with a change (22 new, 81 added to, 23 trimmed, 26 sold); also, 1 entered through an IPO, 1 exited through an acquisition or merger. 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).

• Lumentum Holdings−73%fewer sharesReduced
  5.5% → 1.3%
• Applied Optoelectronics−24%fewer sharesReduced
  5.9% → 5.5%
• MaxLinear+0.8 ppof portfolioNew
  — → 0.8%
• Novanta+0.8 ppof portfolioNew
  — → 0.8%
• BillionToOne+0.7 ppof portfolioNew
  — → 0.7%
• Element Solutions+0.7 ppof portfolioNew
  — → 0.7%
• Ouster+0.7 ppof portfolioNew
  — → 0.7%
• Hinge Health+84%more sharesIncreased
  0.5% → 1.5%
• Flowserve−0.7 ppof portfolioSold out
  0.9% → —
• Cognex+0.6 ppof portfolioNew
  — → 0.6%
• Granite Construction+0.6 ppof portfolioNew
  — → 0.6%
• PDF Solutions+0.6 ppof portfolioNew
  — → 0.6%

The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight?: what it bought or sold, excluding price effects.

Top holdings

• Credo Technology Group HoldingCRDO5.7%
• Applied OptoelectronicsAAOI5.5%
• DigitalOcean HoldingsDOCN3.0%
• Silicon Motion TechnologySIMO2.2%
• Ultra Clean HoldingsUCTT1.9%
• SharkninjaSN1.9%
• SiTimeSITM1.8%
• BrightSpring Health ServicesBTSG1.7%
• Hinge HealthHNGE1.5%
• RambusRMBS1.4%
• MACOM Technology Solutions HoldingsMTSI1.4%
• Lumentum HoldingsLITE1.3%
• Lattice SemiconductorLSCC1.2%
• NovaNVMI1.2%
• Carpenter TechnologyCRS1.2%
• FrontdoorFTDR1.2%
• Everus Construction GroupECG1.1%
• VeracyteVCYT1.1%
• Powell IndustriesPOWL1.1%
• Life Time Group HoldingsLTH1.0%
• Rush Street InteractiveRSI1.0%
• Mercury SystemsMRCY1.0%
• Dutch BrosBROS1.0%
• Clean HarborsCLH0.9%
• Solaris Energy InfrastructureSEI0.9%
• DiodesDIOD0.9%
• ArcosaACA0.9%
• Blue BirdBLBD0.9%
• CamtekCAMT0.9%
• LivaNovaLIVN0.8%
• American SuperconductorAMSC0.8%
• MaxLinearMXL0.8%
• Globus MedicalGMED0.8%
• NovantaNOVT0.8%
• SkywestSKYW0.8%
• Viavi SolutionsVIAV0.8%
• MoogMOG/A0.8%
• LittelfuseLFUS0.8%
• Arcutis BiotherapeuticsARQT0.7%
• Firstcash HoldingsFCFS0.7%
• BillionToOneBLLN0.7%
• DanaDAN0.7%
• Element SolutionsESI0.7%
• AARAIR0.7%
• Remitly GlobalRELY0.7%
• ICU MedicalICUI0.7%
• Federal SignalFSS0.7%
• OusterOUST0.7%
• LEVI StraussLEVI0.7%
• Merit Medical SystemsMMSI0.7%
• AssurantAIZ0.7%
• Waystar HoldingWAY0.7%
• CECO EnvironmentalCECO0.7%
• LiquidiaLQDA0.7%
• Encompass HealthEHC0.7%
• Indivior PharmaceuticalsINDV0.7%
• CognexCGNX0.6%
• Granite ConstructionGVA0.6%
• PDF SolutionsPDFS0.6%
• Envista HoldingsNVST0.6%
• DaveDAVE0.6%
• AmbarellaAMBA0.6%
• NlightLASR0.6%
• MYR GroupMYRG0.6%
• Adaptive BiotechnologiesADPT0.6%
• Leonardo DRSDRS0.6%
• Tutor PeriniTPC0.6%
• Kodiak Gas ServicesKGS0.6%
• Kiniksa Pharmaceuticals InternationalKNSA0.5%
• Chime FinancialCHYM0.5%
• Alignment HealthcareALHC0.5%
• Halozyme TherapeuticsHALO0.5%
• iRhythm HoldingsIRTC0.5%
• Ameris BancorpABCB0.5%
• Zurn Elkay Water SolutionsZWS0.5%
• OSI SystemsOSIS0.5%
• Omada HealthOMDA0.5%
• Urban OutfittersURBN0.5%
• ANI PharmaceuticalsANIP0.5%
• EzcorpEZPW0.5%
• Core Natural ResourcesCNR0.4%
• DucommunDCO0.4%
• Skyward Specialty Insurance GroupSKWD0.4%
• Willdan GroupWLDN0.4%
• A10 NetworksATEN0.4%
• HealthequityHQY0.4%
• Super Group (SGHC)SGHC0.4%
• SPX TechnologiesSPXC0.4%
• FormFactorFORM0.4%
• Watts Water TechnologiesWTS0.4%
• OpenlaneOPLN0.4%
• Q2 HoldingsQTWO0.4%
• BOXBOX0.4%
• VSEVSEC0.4%
• Benchmark ElectronicsBHE0.4%
• New York TimesNYT0.4%
• Advanced Energy IndustriesAEIS0.4%
• Eton PharmaceuticalsETON0.4%
• AxogenAXGN0.4%
• FabrinetFN0.4%