OBERWEIS ASSET MANAGEMENT INC/

OBERWEIS ASSET MANAGEMENT INC/ latest Q4_2020 13F filings reported $379,790,000 in market value on this 2021-02-16 report date . The portfolio quarterly return is 27.86%. This fund has 138 securities concentrations of 100% weights.

OBERWEIS ASSET MANAGEMENT INC/ largest holding is Constellium SE Ordinary Shares (France) with weight of 23.50% and $89,267,000 in market value. The portfolio return is computed based on the amount invested in the new quarter. The following shows the portfolio details.

Portfolio Performance History

FILE DATEREPORT PERIODQTR YEARFILE TYPENOS. OF STOCKSREPORTED VALUERETURN
2021-02-162020-12-31Q4_202013F-HR138$379,790,00027.86%

Portfolio Details

Stock NameTickersValueCurrent Value (x1000)Change Value %WeightComputed PriceShares Change %Current Shares
CONSTELLIUM SE COMMON EUR0.020000CSTMINCR$89,26781.21%23.50%$13.99-98.32%6,380,797
FIVERR INTL LTDFVRRINCR$68,1344.00%17.94%$195.10-125.92%349,224
ENDAVA PLCINCR$36,02936.17%9.49%$76.75-87.96%469,431
UPWORK INCUPWKINCR$13,84498.20%3.65%$34.52-99.86%401,050
CASTLE BIOSCIENCES CSTLINCR$10,95332.46%2.88%$67.15-98.51%163,110
CAREDX INCCDNAINCR$8,92997.94%2.35%$72.45-96.35%123,240
MAGNITE INCMGNIINCR$8,472344.49%2.23%$30.71-99.51%275,857
CHANNELADVISOR CORPECOMINCR$5,0318.85%1.32%$15.98-101.43%314,810
TUPPERWARE BRANDS CORPTUPBUY$4,7220.00%1.24%$32.390.00%145,780
DECKERS OUTDOOR CORPDECKINCR$4,64332.32%1.22%$286.78-98.50%16,190
BANDWIDTH INCBANDDECR$4,479-40.58%1.18%$153.65-132.49%29,150
SHUTTERSTOCK INCSSTKINCR$4,103426.70%1.08%$71.69182.55%57,230
ALPHATEC HLDGS INC COM NEWATECINCR$3,825318.49%1.01%$14.52-8.58%263,400
21VIANET GROUP INCVNETINCR$3,785104.26%1.00%$34.69-63.63%109,100
INPHI CORP0DECR$3,708-22.33%0.98%$160.45-145.66%23,110
TANDEM DIABETES CARE INCTNDMDECR$3,538-41.59%0.93%$95.67-130.71%36,980
MODEL N INCMODNINCR$3,0144.76%0.79%$35.68-96.39%84,480
DIGITAL TURBINE INCAPPSINCR$2,9000.31%0.76%$56.56-141.93%51,275
II-VI INCIIVIINCR$2,73872.64%0.72%$75.97-107.85%36,040
ADDUS HOMECARE CORPADUSINCR$2,64624.23%0.70%$117.08-99.73%22,600
CACI INTL INCCACIINCR$2,54919.28%0.67%$249.29-98.00%10,225
RAPID7 INCRPDINCR$2,48539.14%0.65%$90.17-105.49%27,560
GOLDEN NUGGET ONLINE GAMINGNOGBUY$2,3660.00%0.62%$19.700.00%120,100
SEA LTDSEINCR$2,14324.88%0.56%$199.09-103.35%10,764
TAL EDUCATION GROUPTALDECR$2,145-14.51%0.56%$71.50-109.09%30,000
CROCS INCCROXINCR$1,9614.09%0.52%$62.65-129.02%31,300
AMERESCO INCAMRCINCR$1,92329.32%0.51%$52.24-117.30%36,808
PINDUODUO INCPDDBUY$1,9540.00%0.51%$177.640.00%11,000
SYNAPTICS INCSYNAINCR$1,921119.29%0.51%$96.39-16.99%19,930
BILIBILI INCBILIBUY$1,9030.00%0.50%$85.720.00%22,200
SHYFT GROUP INC0INCR$1,89050.36%0.50%$28.38-100.00%66,600
TREX CO INCTREXINCR$1,77415.27%0.47%$83.72-101.44%21,190
BJS WHSL CLUB HLDGS INCBJDECR$1,727-8.87%0.45%$37.28-98.40%46,330
INMODE LTDINMDINCR$1,64369.38%0.43%$47.49-70.90%34,600
S & P DEPOSITORY RECEIPTSSPYINCR$1,64112.01%0.43%$373.80-99.68%4,390
ZUMIEZ INCZUMZINCR$1,48232.20%0.39%$36.77-100.00%40,300
AXCELIS TECHNOLOGIES INCORPORATED COMMON STOCK USD0.001ACLSINCR$1,43616.18%0.38%$29.12-112.20%49,320
MASONITE INTL CORPDOORINCR$1,4065.08%0.37%$98.32-94.85%14,300
LIQTECH INTERNATIONAL INCORPORATED USD0.001LIQTDECR$1,350-5.33%0.36%$8.000.00%168,729
ACADIA HEALTHCARE COMPANY INACHCBUY$1,3170.00%0.35%$50.280.00%26,195
UPLAND SOFTWARE UPLDINCR$1,31217.14%0.35%$45.87-103.70%28,600
CAMTEK LTDCAMTINCR$1,29242.45%0.34%$21.91-100.00%58,980
ENPRO INDS INCNPOINCR$1,23955.85%0.33%$75.55-83.69%16,400
BOOT BARN HLDGS BOOTINCR$1,23174.86%0.32%$43.35-86.40%28,400
COHU INCCOHUBUY$1,2090.00%0.32%$38.170.00%31,676
M/I HOMES INCMHOINCR$1,1651.22%0.31%$44.30-94.80%26,300
MALIBU BOATS INCMBUUINCR$1,19351.40%0.31%$62.46-79.87%19,100
TEMPUR SEALY INTL INCTPXINCR$1,193261.52%0.31%$27.00994.32%44,190
VOCERA COMMUNICATIONS INCVCRAINCR$1,16742.84%0.31%$41.53-100.00%28,100
AIR TRANSPORT SERVICES GRP IATSGINCR$1,14117.99%0.30%$31.35-105.65%36,400
MAGNACHIP SEMICONDUCTOR CORPMXINCR$1,1533.87%0.30%$13.52-94.69%85,300
ULTRA CLEAN HOLDINGS INCORPORATED COMMON STOCK USD0.001UCTTINCR$1,15337.43%0.30%$31.16-105.37%37,000
AVID BIOSERVICES INCCDMOBUY$1,1020.00%0.29%$11.540.00%95,500
SONIC AUTOMOTIVE INCSAHDECR$1,084-3.90%0.29%$38.580.00%28,100
APPLE INCAAPLINCR$1,0606.85%0.28%$132.65-106.75%7,991
FLEXSTEEL INDS INCFLXSBUY$1,0490.00%0.28%$34.970.00%30,000
MYR GROUP INC DELMYRGINCR$1,05826.40%0.28%$60.11-121.78%17,600
PERFICIENT INCPRFTINCR$1,07211.43%0.28%$47.64-100.00%22,500
VOXX INTL CORPVOXXBUY$1,0500.00%0.28%$12.760.00%82,300
ENSIGN GROUP INCENSGDECR$1,035-20.08%0.27%$72.89-137.44%14,200
NIO INCNIODECR$975-42.58%0.26%$48.75-175.00%20,000
ALLIED MOTION TECHNOLOGIES IINCR$95031.58%0.25%$51.08-93.71%18,600
CRA INTL INCCRAIINCR$94235.93%0.25%$50.92-100.00%18,500
AUTOHOME INCATHMBUY$8970.00%0.24%$99.670.00%9,000
COLLEGIUM PHARMACEUTICAL INC COMMON STOCK USD0.001COLLDECR$921-16.88%0.24%$20.02-113.53%46,000
A10 NETWORKS INCATENBUY$8690.00%0.23%$9.860.00%88,100
OOMA INCOOMAINCR$85510.32%0.23%$14.39-100.00%59,400
AMEDISYS INCAMEDINCR$83718.05%0.22%$293.48-104.93%2,852
COMMERCIAL VEHICLE GROUP INCORPORATED COMMON STOCK USD0.01CVGIBUY$8480.00%0.22%$8.650.00%98,000
ANTARES PHARMA INCATRSINCR$80047.60%0.21%$3.99-100.00%200,600
HEIDRICK & STRUGGLES INTL INHSIIBUY$7930.00%0.21%$29.370.00%27,000
CEVA INCCEVADECR$755-13.22%0.20%$45.48-124.89%16,600
GRIFFON CORPGFFINCR$7504.31%0.20%$20.38-100.00%36,800
INTERNATIONAL MONEY EXPRESS USD0.000100IMXIINCR$74543.27%0.20%$15.52-67.40%48,000
DADA NEXUS LTDDADAINCR$726173.96%0.19%$36.48-1.00%19,900
EL POLLO LOCO HLDGS INCLOCOINCR$68829.81%0.18%$18.11-83.79%38,000
FIRST FNDTN INCFFWMINCR$65690.70%0.17%$20.00-75.29%32,800
MICROSOFT CORPMSFTINCR$6493.18%0.17%$222.26-102.34%2,920
ARCO PLATFORM LTDARCEDECR$625-16.44%0.16%$35.47-103.77%17,620
PATTERSON-UTI ENERGY INCPTENBUY$6000.00%0.16%$5.260.00%114,000
ADTRAN INCADTNINCR$58844.12%0.15%$14.77-100.00%39,800
CROSS CTRY HEALTHCARE INCCCRNBUY$5660.00%0.15%$8.870.00%63,800
J P MORGAN CHASE & CO COMJPMINCR$56932.02%0.15%$127.09-99.91%4,477
SHOPIFY INCSHOPINCR$56754.50%0.15%$1131.74-60.45%501
VISHAY PRECISION GROUP INCVPGBUY$5600.00%0.15%$31.460.00%17,800
CADENCE DESIGN SYSTEM INCCDNSINCR$54056.07%0.14%$136.50-77.94%3,956
CLEARFIELD INCCLFDINCR$53422.48%0.14%$24.72-100.00%21,600
MERCANTILE BANK CORPMBWMINCR$53059.64%0.14%$27.18-94.02%19,500
JOINT CORPJYNTBUY$5250.00%0.14%$26.250.00%20,000
ENTERPRISE FINL SVCS CORPEFSCDECR$498-36.56%0.13%$34.93-150.51%14,256
FARFETCH LTDFTCHBUY$5040.00%0.13%$63.800.00%7,900
MASTERCARD INCORPORATEDMAINCR$4805.73%0.13%$357.14-99.93%1,344
PREFORMED LINE PRODS COINCR$47940.47%0.13%$68.43-100.00%7,000
ALIBABA GROUP HOLDINGBABADECR$468-22.90%0.12%$232.84-102.66%2,010
RIBBON COMMUNICATIONS INCRBBNBUY$4720.00%0.12%$6.560.00%72,000
DASEKE INCDSKEBUY$4070.00%0.11%$5.810.00%70,000
INOVALON HLDGS INCINOVDECR$401-76.19%0.11%$18.16-165.33%22,080
MERCURY SYS INCMRCYDECR$422-31.16%0.11%$88.10-139.44%4,790
NATURAL GROCERS BY VITAMIN CNGVCINCR$42990.67%0.11%$13.75-63.16%31,200
UNITY SOFTWARE INCUBUY$4090.00%0.11%$153.530.00%2,664
BIODELIVERY SCIENCES INTL INBDSIDECR$372-42.33%0.10%$4.20-148.74%88,600
FULL HSE RESORTS INCFLLBUY$3930.00%0.10%$3.930.00%100,000
JOHNSON & JOHNSONJNJINCR$3915.96%0.10%$157.41-99.88%2,484
NEWMONT CORPNEMDECR$374-7.65%0.10%$59.96-102.24%6,238
ACCURAY INCARAYDECR$349-19.77%0.09%$4.16-153.75%83,800
AMAZON COM INCAMZNINCR$3263.49%0.09%$3260.00-100.00%100
AMGENAMGNDECR$344-9.47%0.09%$230.25-99.93%1,494
HELIX ENERGY SOLUTIONS GRP IHLXINCR$35074.13%0.09%$4.20-100.00%83,300
TRAVELERS COMPANIES INCTRVINCR$34929.74%0.09%$140.27-99.88%2,488
CHEGG INCCHGGBUY$3070.00%0.08%$90.290.00%3,400
CLEAN HARBORS INCCLHBUY$3040.00%0.08%$76.000.00%4,000
INTEL CORPINTCDECR$296-3.58%0.08%$49.87-99.97%5,936
MATSON INCMATXINCR$29142.65%0.08%$57.06-100.00%5,100
MAXLINEAR INCMXLBUY$2900.00%0.08%$38.160.00%7,600
RPC INCRESBUY$3160.00%0.08%$3.150.00%100,283
RESMED INCRMDINCR$30823.69%0.08%$212.41-100.00%1,450
TTEC HLDGS INCTTECINCR$29233.94%0.08%$73.00-100.00%4,000
ASGN INCASGNBUY$2670.00%0.07%$83.440.00%3,200
ARCOSA INC0INCR$25324.63%0.07%$55.00-100.00%4,600
GREEN DOT CORPGDOTINCR$26810.29%0.07%$55.83-100.00%4,800
HILLENBRAND INCHIBUY$2750.00%0.07%$39.860.00%6,900
SELECT MED HLDGS CORPSEMBUY$2520.00%0.07%$27.690.00%9,100
WALMART INCWMTINCR$2532.85%0.07%$144.00-100.00%1,757
BHP GROUP LTDBHPBUY$2090.00%0.06%$65.480.00%3,192
BUILDERS FIRSTSOURCE INCBLDRBUY$2410.00%0.06%$40.850.00%5,900
MCDONALDS CORPMCDDECR$230-1.71%0.06%$214.55-99.63%1,072
STEWART INFORMATION SVCS CORSTCBUY$2420.00%0.06%$48.400.00%5,000
TRINET GROUP INCTNETBUY$2260.00%0.06%$80.710.00%2,800
NOV INCNOVBUY$1760.00%0.05%$13.750.00%12,800
VERIZON COMMUNICATIONS INCVZDECR$201-0.99%0.05%$58.75-99.74%3,421
GEOPARK LTDGPRKBUY$1620.00%0.04%$12.960.00%12,500
REALOGY HLDGS CORPRLGYBUY$1650.00%0.04%$13.100.00%12,600
VONAGE HLDGS CORPVGBUY$1550.00%0.04%$12.920.00%12,000
AMR Corp EscrowNA$00.00%0.00%$0.000.00%18,000
American Power CorpNA$00.00%0.00%$0.000.00%10,000
Avatar VenturesNA$00.00%0.00%$0.000.00%10,000
Titan Oil & Gas, Inc.NA$00.00%0.00%$0.000.00%10,000
Xenacare Hldgs, Inc.NA$00.00%0.00%$0.000.00%140,000
ACM RESEARCH INCORPORATED CLASS A COMMON STOCK USD0.0001ACMRSOLD$00.00%-100.00%$0.000.00%0
AUDIOCODES LTDAUDCSOLD$00.00%-100.00%$0.000.00%0
BAUDAX BIO INCSOLD$00.00%-100.00%$0.000.00%0
BOTTOMLINE TECH DEL INCEPAYSOLD$00.00%-100.00%$0.000.00%0
EVERQUOTE INCEVERSOLD$00.00%-100.00%$0.000.00%0
FARO TECHNOLOGIES INCFAROSOLD$00.00%-100.00%$0.000.00%0
GDS HLDGS LTDGDSSOLD$00.00%-100.00%$0.000.00%0
GRAPHIC PACKAGING HLDG COGPKSOLD$00.00%-100.00%$0.000.00%0
HELEN OF TROY LTDHELESOLD$00.00%-100.00%$0.000.00%0
HURON CONSULTING GROUP INCHURNSOLD$00.00%-100.00%$0.000.00%0
I MABIMABSOLD$00.00%-100.00%$0.000.00%0
LI AUTO INCLISOLD$00.00%-100.00%$0.000.00%0
LIMELIGHT NETWORKS INCLLNWSOLD$00.00%-100.00%$0.000.00%0
LIVEPERSON INCLPSNSOLD$00.00%-100.00%$0.000.00%0
MACOM TECH SOLUTIONS HLDGS IMTSISOLD$00.00%-100.00%$0.000.00%0
MERIT MED SYS INCMMSISOLD$00.00%-100.00%$0.000.00%0
NEW ORIENTAL ED & TECHNOLOGYEDUSOLD$00.00%-100.00%$0.000.00%0
ONESPAN INCOSPNSOLD$00.00%-100.00%$0.000.00%0
OXFORD IMMUNOTEC GLOBAL PLCSOLD$00.00%-100.00%$0.000.00%0
PERDOCEO ED CORPPRDOSOLD$00.00%-100.00%$0.000.00%0
SVMK INCSVMKSOLD$00.00%-100.00%$0.000.00%0
SYNNEX CORPSNXSOLD$00.00%-100.00%$0.000.00%0
TRUECAR INCTRUESOLD$00.00%-100.00%$0.000.00%0
U S XPRESS ENTERPRISES INCUSXSOLD$00.00%-100.00%$0.000.00%0
EGAIN CORPEGANSOLD$00.00%-100.00%$0.000.00%0