Fund Holdings — OBERWEIS ASSET MANAGEMENT INC/

Total Portfolio Value:
$4.84B
Total Bought:
$1.66B
Total Sold:
$826.31M
Net Transaction:
+$833.23M
Notable People:
James Walter Oberweis
Securities
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SharesValue
Q1 2026
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Q2 2026
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Change
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Q1 2026
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Q2 2026
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Weight (%)
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Change
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Credo Technology Group
ORDINARY SHARES
1,021,9681,013,428-8,540$95.93M$275.60M5.69%+$179.67M
Applied Optoelectronics, Inc.(AAOI)2,349,9691,791,127-558,842$198.78M$265.37M5.48%+$66.59M
DigitalOcean Holdings, Inc.(DOCN)927,505930,005+2,500$79.56M$146.04M3.02%+$66.48M
Silicon Motion Technology Corporation(SIMO)282,550316,350+33,800$31.73M$105.45M2.18%+$73.72M
Ultra Clean Holdings, Inc.(UCTT)640,476647,276+6,800$39.82M$92.30M1.91%+$52.47M
SharkNinja, Inc.(SN)599,970593,500-6,470$63.54M$90.37M1.87%+$26.84M
SiTime Corporation(SITM)119,281119,501+220$41.19M$89.10M1.84%+$47.90M
BrightSpring Health Services, Inc.(BTSG)1,158,9701,185,280+26,310$49.38M$82.66M1.71%+$33.28M
Hinge Health, Inc.(HNGE)465,766855,476+389,710$17.96M$71.00M1.47%+$53.04M
Rambus Inc.(RMBS)526,316527,016+700$45.28M$69.96M1.45%+$24.68M
MACOM Technology Solutions Holdings, Inc.(MTSI)215,886179,356-36,530$47.94M$68.22M1.41%+$20.28M
Lumentum Holdings Inc.(LITE)266,22272,185-194,037$187.09M$61.94M1.28%-$125.15M
Lattice Semiconductor Corporation(LSCC)374,436391,816+17,380$34.73M$59.93M1.24%+$25.20M
Nova Ltd.(NVMI)137,955108,675-29,280$59.91M$59.00M1.22%-$907.1K
Carpenter Technology Corporation(CRS)94,43393,273-1,160$37.22M$57.53M1.19%+$20.31M
Frontdoor, Inc.(FTDR)717,960719,060+1,100$37.95M$55.79M1.15%+$17.84M
Everus Construction Group, Inc.(ECG)326,533328,183+1,650$38.55M$54.46M1.13%+$15.91M
Veracyte, Inc.(VCYT)839,834877,734+37,900$27.05M$51.55M1.07%+$24.50M
Powell Industries, Inc.(POWL)34,157179,521+145,364$18.48M$51.41M1.06%+$32.93M
Life Time Group Holdings, Inc.(LTH)1,160,5001,189,620+29,120$31.26M$48.58M1.00%+$17.32M
Rush Street Interactive, Inc.(RSI)1,434,5601,627,930+193,370$31.20M$48.41M1.00%+$17.21M
Mercury Systems, Inc.(MRCY)391,023392,723+1,700$28.51M$48.04M0.99%+$19.53M
Dutch Bros Inc.(BROS)598,493656,093+57,600$30.32M$47.11M0.97%+$16.79M
Clean Harbors, Inc.(CLH)144,355153,475+9,120$41.39M$45.85M0.95%+$4.46M
Solaris Energy Infrastructure, Inc.(SEI)531,889564,581+32,692$30.06M$45.43M0.94%+$15.37M
Diodes Incorporated(DIOD)224,300413,750+189,450$15.31M$45.28M0.94%+$29.97M
Arcosa, Inc.267,700295,450+27,750$28.41M$42.93M0.89%+$14.51M
Blue Bird Corporation389,238529,838+140,600$22.10M$41.84M0.86%+$19.73M
Camtek Ltd.(CAMT)222,780253,380+30,600$33.78M$41.33M0.85%+$7.56M
LivaNova PLC(LIVN)321,900500,150+178,250$20.46M$41.13M0.85%+$20.67M
American Superconductor849,900987,500+137,600$28.77M$40.99M0.85%+$12.22M
MaxLinear, Inc.(MXL)0319,500+319,500$0$40.91M0.85%+$40.91M
Globus Medical, Inc.(GMED)392,200512,100+119,900$33.79M$40.46M0.84%+$6.67M
Novanta Inc.(NOVT)0244,260+244,260$0$39.63M0.82%+$39.63M
SkyWest, Inc.(SKYW)392,499383,799-8,700$36.04M$38.12M0.79%+$2.08M
Viavi Solutions Inc.(VIAV)593,200793,600+200,400$19.74M$37.89M0.78%+$18.15M
Moog Inc.(MOG-A)44,91086,735+41,825$13.14M$36.76M0.76%+$23.62M
Littelfuse, Inc.(LFUS)71,80079,800+8,000$24.37M$36.34M0.75%+$11.97M
Arcutis Biotherapeutics, Inc.(ARQT)1,365,9411,372,941+7,000$32.18M$36.00M0.74%+$3.82M
FirstCash Holdings, Inc.(FCFS)165,665166,105+440$31.15M$35.93M0.74%+$4.79M
Billiontoone, Inc.0299,030+299,030$0$35.88M0.74%+$35.88M
Dana Incorporated(DAN)1,611,5001,318,300-293,200$54.23M$35.87M0.74%-$18.36M
Element Solutions Inc(ESI)0740,100+740,100$0$35.34M0.73%+$35.34M
AAR Corp.245,125246,325+1,200$26.83M$35.21M0.73%+$8.38M
Remitly Global, Inc.(RELY)1,454,3001,570,400+116,100$22.79M$35.19M0.73%+$12.40M
ICU Medical, Inc.(ICUI)203,710237,050+33,340$26.31M$34.75M0.72%+$8.44M
Federal Signal Corporation(FSS)267,634269,084+1,450$28.94M$34.57M0.71%+$5.63M
Ouster, Inc.(OUST)0545,810+545,810$0$34.12M0.71%+$34.12M
Levi Strauss & Co.(LEVI)1,167,3001,358,100+190,800$21.58M$33.72M0.70%+$12.14M
Merit Medical Systems, Inc.(MMSI)424,209473,409+49,200$29.24M$32.83M0.68%+$3.59M
Assurant, Inc.(AIZ)102,300122,100+19,800$22.28M$32.79M0.68%+$10.51M
Waystar Holding Corp.(WAY)1,167,4741,589,364+421,890$28.15M$32.63M0.67%+$4.48M
CECO Environmental Corp.(CECO)135,032358,072+223,040$8.05M$32.49M0.67%+$24.45M
Liquidia Corporation(LQDA)372,100406,400+34,300$14.04M$32.40M0.67%+$18.36M
Encompass Health Corporation(EHC)289,485316,886+27,401$28.00M$32.03M0.66%+$4.03M
Indivior Pharmaceuticals, Inc.(INDV)653,413779,188+125,775$19.92M$31.97M0.66%+$12.05M
Cognex Corporation(CGNX)0427,820+427,820$0$30.98M0.64%+$30.98M
Granite Construction Incorporated(GVA)0193,090+193,090$0$30.52M0.63%+$30.52M
PDF Solutions, Inc.(PDFS)0426,400+426,400$0$30.18M0.62%+$30.18M
Envista Holdings Corporation(NVST)665,4001,120,782+455,382$16.88M$29.53M0.61%+$12.65M
Dave Inc.(DAVE)66,70278,902+12,200$11.61M$29.40M0.61%+$17.79M
Ambarella, Inc.(AMBA)295,185342,254+47,069$15.19M$29.37M0.61%+$14.17M
nLIGHT, Inc.(LASR)363,010413,310+50,300$20.70M$28.77M0.59%+$8.08M
MYR Group Inc.(MYRG)054,190+54,190$0$27.12M0.56%+$27.12M
Adaptive Biotechnologies Corporation(ADPT)806,9511,258,751+451,800$11.20M$27.00M0.56%+$15.80M
Leonardo DRS, Inc.(DRS)449,500628,486+178,986$20.01M$26.82M0.55%+$6.81M
Tutor Perini Corporation(TPC)393,900323,200-70,700$30.41M$26.82M0.55%-$3.59M
Kodiak Gas Services, Inc.(KGS)0355,870+355,870$0$26.74M0.55%+$26.74M
Kiniksa Pharmaceuticals International, plc(KNSA)318,634413,034+94,400$15.34M$26.41M0.55%+$11.07M
Chime Financial, Inc.(CHYM)1,035,5301,268,330+232,800$19.40M$25.98M0.54%+$6.58M
Alignment Healthcare, Inc.(ALHC)966,6001,089,600+123,000$17.03M$25.94M0.54%+$8.91M
Halozyme Therapeutics, Inc.(HALO)219,930321,030+101,100$14.21M$25.13M0.52%+$10.91M
iRhythm Holdings, Inc.(IRTC)156,004202,004+46,000$18.41M$24.03M0.50%+$5.62M
Ameris Bancorp(ABCB)263,500264,600+1,100$20.55M$23.88M0.49%+$3.33M
Zurn Elkay Water Solutions Corporation(ZWS)352,183468,453+116,270$15.79M$23.67M0.49%+$7.88M
OSI Systems, Inc.(OSIS)106,593107,143+550$28.30M$23.43M0.48%-$4.87M
Omada Health, Inc.(OMDA)01,048,800+1,048,800$0$23.02M0.48%+$23.02M
Urban Outfitters, Inc.(URBN)314,792316,192+1,400$19.94M$22.41M0.46%+$2.46M
ANI Pharmaceuticals, Inc.(ANIP)221,386265,306+43,920$17.02M$21.96M0.45%+$4.94M
EZCORP, Inc.(EZPW)639,400631,800-7,600$16.23M$21.84M0.45%+$5.61M
Core Natural Resources, Inc.(CNR)269,800271,170+1,370$28.26M$21.70M0.45%-$6.56M
Ducommun Incorporated(DCO)99,900113,800+13,900$12.19M$21.08M0.44%+$8.89M
Skyward Specialty Insurance Group, Inc.(SKWD)327,100359,100+32,000$14.29M$20.95M0.43%+$6.67M
Willdan Group, Inc.(WLDN)0262,700+262,700$0$20.78M0.43%+$20.78M
A10 Networks, Inc.504,300552,000+47,700$11.66M$20.62M0.43%+$8.96M
HealthEquity, Inc.(HQY)166,641228,291+61,650$13.93M$20.62M0.43%+$6.69M
Super Group SGHC Ltd.
ORD SHS
1,514,4001,521,000+6,600$16.36M$20.61M0.43%+$4.25M
SPX Technologies, Inc.83,44183,811+370$16.68M$20.55M0.42%+$3.86M
FormFactor, Inc.(FORM)0127,330+127,330$0$20.36M0.42%+$20.36M
Watts Water Technologies, Inc.(WTS)050,840+50,840$0$19.90M0.41%+$19.90M
OPENLANE, Inc.(OPLN)0480,580+480,580$0$19.82M0.41%+$19.82M
Q2 Holdings, Inc.(QTWO)394,629410,409+15,780$18.67M$19.74M0.41%+$1.07M
Box, Inc.(BOX)771,520743,000-28,520$18.24M$19.72M0.41%+$1.48M
VSE Corporation(VSEC)34,00886,098+52,090$6.27M$19.67M0.41%+$13.40M
Benchmark Electronics, Inc.(BHE)201,900198,300-3,600$11.32M$19.57M0.40%+$8.25M
The New York Times Company(NYT)211,650277,050+65,400$17.72M$19.39M0.40%+$1.67M
Advanced Energy Industry, Inc.49,18349,423+240$15.87M$18.43M0.38%+$2.56M
Eton Pharmaceuticals, Inc.(ETON)439,300501,600+62,300$10.84M$18.16M0.38%+$7.32M
Axogen, Inc.(AXGN)342,394388,194+45,800$11.34M$17.93M0.37%+$6.59M
Fabrinet(FN)30,26330,373+110$15.78M$17.07M0.35%+$1.29M
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OBERWEIS ASSET MANAGEMENT INC/ — 13F Holdings — Q2 2026 | TickerTrail