Oberweis Asset Management

Oberweis Asset Management as of Dec. 31, 2010

Portfolio Holdings for Oberweis Asset Management

Oberweis Asset Management holds 211 positions in its portfolio as reported in the December 2010 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Acacia Research Corporation (ACTG) 3.8 $19M 749k 25.94
Imax Corp Cad (IMAX) 2.5 $13M 447k 28.07
Spreadtrum Communications 2.4 $12M 677k 18.37
G-III Apparel (GIII) 2.2 $11M 319k 35.15
Medidata Solutions 1.7 $8.8M 369k 23.88
51job 1.6 $8.3M 168k 49.25
Home Inns & Hotels Management 1.5 $7.6M 185k 40.96
MIPS Technologies 1.4 $7.1M 465k 15.17
Amerigon Incorporated 1.4 $6.9M 637k 10.88
OpenTable 1.4 $6.9M 98k 70.48
Sxc Health Solutions Corp 1.3 $6.8M 158k 42.86
Kemet Corporation Cmn 1.3 $6.8M 464k 14.58
Power-One 1.2 $6.0M 585k 10.20
China Ming Yang Wind Power 1.1 $5.8M 507k 11.50
Carrizo Oil & Gas 1.1 $5.8M 167k 34.49
American Superconductor Corporation 1.1 $5.5M 192k 28.59
Entropic Communications 1.1 $5.5M 453k 12.08
SemiLEDs Corporation 1.1 $5.5M 189k 29.05
Vera Bradley (VRA) 1.0 $5.3M 159k 33.00
Herley Industries (HRLY) 1.0 $5.2M 302k 17.32
LogMeIn 1.0 $5.1M 116k 44.34
RealPage 1.0 $5.1M 166k 30.93
Longtop Financial Technologies 1.0 $5.0M 139k 36.18
KVH Industries (KVHI) 1.0 $5.0M 418k 11.95
Sina Corporation 0.9 $4.8M 70k 68.82
GeoResources 0.9 $4.7M 211k 22.21
BofI Holding 0.9 $4.7M 304k 15.51
Aruba Networks 0.9 $4.7M 223k 20.88
Nanometrics Incorporated 0.8 $4.3M 339k 12.83
Cognex Corporation (CGNX) 0.8 $4.3M 146k 29.42
Mistras (MG) 0.8 $4.3M 319k 13.48
Active Power 0.8 $4.1M 1.7M 2.46
Higher One Holdings 0.8 $4.1M 201k 20.23
interCLICK 0.8 $4.0M 737k 5.37
Brush Engineered Material 0.8 $3.9M 101k 38.64
Impax Laboratories 0.8 $3.8M 191k 20.11
Ambow Education Holding 0.7 $3.8M 271k 13.92
China Valves Technology 0.7 $3.8M 358k 10.48
Amtech Systems (ASYS) 0.7 $3.7M 147k 25.15
BSQUARE Corporation 0.7 $3.7M 421k 8.75
iRobot Corporation (IRBT) 0.7 $3.6M 146k 24.88
Constant Contact 0.7 $3.6M 117k 30.99
HMS Holdings 0.7 $3.6M 55k 64.77
NN (NNBR) 0.7 $3.6M 290k 12.36
Green Mountain Coffee Roasters 0.7 $3.5M 105k 32.86
Measurement Specialties 0.7 $3.5M 118k 29.35
Momenta Pharmaceuticals 0.7 $3.4M 229k 14.97
Charm Communications (CHRM) 0.7 $3.4M 347k 9.86
Hi-Tech Pharmacal 0.7 $3.4M 135k 24.95
Acme Packet 0.7 $3.4M 64k 53.15
Concord Medical Services Holding (CCM) 0.7 $3.4M 456k 7.39
Sourcefire 0.7 $3.4M 131k 25.93
Zix Corporation 0.7 $3.3M 780k 4.27
IPC The Hospitalist Company 0.6 $3.1M 79k 39.01
Axt (AXTI) 0.6 $3.1M 293k 10.44
ViroPharma Incorporated 0.6 $3.0M 175k 17.32
ISTA Pharmaceuticals 0.6 $3.0M 588k 5.13
Yongye International 0.6 $3.0M 360k 8.40
3SBio (SSRX) 0.6 $2.9M 191k 15.18
Gulf Resources 0.6 $2.9M 267k 10.69
FARO Technologies (FARO) 0.6 $2.8M 86k 32.84
IPG Photonics Corporation (IPGP) 0.5 $2.8M 87k 31.62
IXYS Corporation 0.5 $2.7M 236k 11.62
MediaMind Technologies (MDMD) 0.5 $2.7M 200k 13.70
Wave Systems 0.5 $2.7M 685k 3.94
GeoEye 0.5 $2.6M 63k 42.38
Northern Oil & Gas 0.5 $2.7M 98k 27.21
Digimarc Corporation (DMRC) 0.5 $2.7M 89k 30.01
Global Education and Technology (GEDU) 0.5 $2.6M 278k 9.54
Rue21 0.5 $2.6M 89k 29.31
ViaSat (VSAT) 0.5 $2.6M 58k 44.40
Lihua International 0.5 $2.5M 225k 11.24
TeleCommunication Systems 0.5 $2.5M 540k 4.67
Raven Industries 0.5 $2.5M 53k 47.68
Volterra Semiconductor Corporation 0.5 $2.5M 107k 23.16
Ii-vi 0.5 $2.5M 53k 46.36
SouFun Holdings 0.5 $2.5M 35k 71.53
Chinacast Education Corporation (CAST) 0.5 $2.4M 311k 7.76
QKL Stores 0.5 $2.4M 683k 3.55
China Digital TV Holding 0.5 $2.4M 335k 7.09
Richmont Mines 0.5 $2.4M 460k 5.11
China XD Plastics 0.5 $2.3M 424k 5.43
ExlService Holdings (EXLS) 0.4 $2.2M 104k 21.48
Yuhe International (YUII) 0.4 $2.2M 249k 8.95
Danvers Ban (DNBK) 0.4 $2.2M 123k 17.67
LeapFrog Enterprises 0.4 $2.2M 398k 5.55
CPI Aerostructures (CVU) 0.4 $2.2M 158k 14.08
AutoNavi Holdings 0.4 $2.2M 137k 16.03
National American Univ. Holdings (NAUH) 0.4 $2.2M 302k 7.34
Syswin (SYSW) 0.4 $2.2M 370k 5.99
Rubicon Technology 0.4 $2.1M 102k 21.08
Primo Water Corporation 0.4 $2.1M 150k 14.21
AsiaInfo-Linkage 0.4 $2.1M 125k 16.57
SRS Labs (SRSL) 0.4 $2.1M 241k 8.81
Cardinal Financial Corporation 0.4 $2.0M 176k 11.63
LivePerson (LPSN) 0.4 $2.0M 179k 11.30
Blackboard 0.4 $2.0M 49k 41.30
LeCROY Corporation 0.4 $2.0M 206k 9.84
3D Systems Corporation (DDD) 0.4 $2.0M 65k 31.49
Gulfport Energy Corporation 0.4 $1.9M 89k 21.69
Endologix 0.4 $1.9M 272k 7.15
Panhandle Oil and Gas 0.4 $1.9M 69k 27.42
Cavium Networks 0.4 $1.9M 50k 37.69
GSI Technology (GSIT) 0.4 $1.9M 229k 8.10
China Marine Food (CMFO) 0.4 $1.8M 339k 5.40
Ctrip.com International 0.3 $1.8M 44k 40.46
ICF International (ICFI) 0.3 $1.8M 69k 25.72
MWI Veterinary Supply 0.3 $1.8M 28k 63.13
HiSoft Technology International (HSFT) 0.3 $1.8M 59k 30.20
Grand Canyon Education (LOPE) 0.3 $1.8M 89k 19.59
Almost Family 0.3 $1.7M 45k 38.42
iGATE Corporation 0.3 $1.8M 89k 19.71
GSE Systems 0.3 $1.7M 482k 3.62
JinkoSolar Holding (JKS) 0.3 $1.7M 86k 20.12
TAL Education (TAL) 0.3 $1.8M 109k 16.10
American Science & Engineering 0.3 $1.7M 20k 85.23
Cirrus Logic (CRUS) 0.3 $1.7M 104k 15.98
Oplink Communications 0.3 $1.6M 86k 18.47
NetLogic Microsystems 0.3 $1.6M 50k 31.40
China Kanghui Holdings 0.3 $1.6M 85k 18.51
CLICKSOFTWARE TECHNOLOGIES Ltd Com Stk 0.3 $1.5M 198k 7.70
Summer Infant 0.3 $1.5M 193k 7.58
NetGear (NTGR) 0.3 $1.4M 43k 33.69
Axcelis Technologies 0.3 $1.4M 417k 3.46
Rda Microelectronics 0.3 $1.4M 97k 14.61
Align Technology (ALGN) 0.3 $1.4M 72k 19.54
eMagin Corporation 0.3 $1.4M 232k 6.00
Tri-tech Holding (TRITF) 0.3 $1.4M 127k 10.76
Advanced Energy Industries (AEIS) 0.3 $1.3M 99k 13.64
RightNow Technologies 0.3 $1.3M 56k 23.67
Alliance Fiber Optic Products 0.3 $1.3M 84k 15.68
OmniVision Technologies 0.2 $1.2M 42k 29.62
Taleo Corporation 0.2 $1.2M 44k 27.65
Globecomm Systems 0.2 $1.2M 125k 10.00
Kraton Performance Polymers 0.2 $1.2M 39k 30.94
Newport Corporation 0.2 $1.2M 66k 17.42
Vicor Corporation (VICR) 0.2 $1.2M 73k 16.40
Ixia 0.2 $1.2M 70k 16.79
LML Payment Systems 0.2 $1.2M 343k 3.49
Bill Barrett Corporation 0.2 $1.1M 27k 41.14
LaBarge 0.2 $1.1M 71k 15.71
Ceragon Networks (CRNT) 0.2 $1.1M 86k 13.18
Changyou 0.2 $1.1M 39k 28.51
Web 0.2 $1.1M 132k 8.45
Natus Medical 0.2 $1.1M 75k 14.18
GLG Life Tech 0.2 $1.1M 100k 10.86
Silicom (SILC) 0.2 $1.1M 57k 18.63
AdCare Health Systems 0.2 $1.1M 268k 3.97
Ancestry 0.2 $1.1M 38k 28.31
Female Health Company 0.2 $1.1M 190k 5.69
Brooks Automation (AZTA) 0.2 $1.0M 111k 9.07
Electro Rent Corporation 0.2 $1.0M 63k 16.16
Chase Corporation 0.2 $999k 61k 16.30
Industrial Services of America 0.2 $1.0M 85k 12.31
UFP Technologies (UFPT) 0.2 $1.0M 85k 12.19
LGL (LGL) 0.2 $1.0M 56k 17.98
Spectrum Control 0.2 $982k 66k 14.99
Vanda Pharmaceuticals (VNDA) 0.2 $995k 105k 9.46
Ameres (AMRC) 0.2 $987k 69k 14.37
Zoo Entertainment (ZOOG) 0.2 $960k 208k 4.61
Bel Fuse (BELFB) 0.2 $934k 39k 23.89
Providence Service Corporation 0.2 $850k 53k 16.07
Joe's Jeans 0.2 $851k 549k 1.55
SuperGen 0.2 $862k 329k 2.62
Conmed Healthcare Management (CONM) 0.2 $887k 291k 3.05
Mitek Systems (MITK) 0.2 $886k 146k 6.05
Hackett (HCKT) 0.2 $793k 226k 3.51
hhgregg (HGGG) 0.1 $771k 37k 20.95
Key Tronic Corporation (KTCC) 0.1 $760k 146k 5.22
Shengkai Innovations 0.1 $767k 134k 5.74
Cohu (COHU) 0.1 $739k 45k 16.57
Manitex International (MNTX) 0.1 $740k 192k 3.85
Adept Technology 0.1 $699k 155k 4.50
Unify Corporation (UNFY) 0.1 $713k 246k 2.90
TESSCO Technologies 0.1 $673k 42k 15.94
Mellanox Technologies 0.1 $605k 23k 26.19
Datalink Corporation 0.1 $598k 128k 4.67
Real Goods Solar 0.1 $574k 225k 2.55
First Savings Financial (FSFG) 0.1 $552k 38k 14.60
Microsoft Corporation (MSFT) 0.1 $457k 16k 27.94
KSW (KSW) 0.1 $437k 120k 3.65
China Nuokang Bio-Pharmaceutical (NKBP) 0.1 $454k 120k 3.79
XATA Corporation 0.1 $457k 219k 2.09
BHP Billiton (BHP) 0.1 $417k 4.5k 92.91
InfoSpace 0.1 $393k 47k 8.29
McDonald's Corporation (MCD) 0.1 $364k 4.7k 76.68
Walgreen Company 0.1 $339k 8.7k 38.97
Illumina (ILMN) 0.1 $351k 5.5k 63.36
Johnson & Johnson (JNJ) 0.1 $294k 4.7k 61.95
General Electric Company 0.1 $307k 17k 18.30
Baidu (BIDU) 0.1 $328k 3.4k 96.47
Coca-Cola Company (KO) 0.1 $263k 4.0k 65.80
Intel Corporation (INTC) 0.1 $240k 11k 21.07
Salix Pharmaceuticals 0.1 $268k 5.7k 47.02
Wal-Mart Stores (WMT) 0.0 $228k 4.2k 53.99
Travelers Companies (TRV) 0.0 $220k 3.9k 55.82
Amgen (AMGN) 0.0 $222k 4.0k 55.02
Toyota Motor Corporation (TM) 0.0 $202k 2.6k 78.54
Phillips-Van Heusen Corporation 0.0 $202k 3.2k 63.12
iSoftStone Holdings 0.0 $182k 10k 18.20
Alpha & Omega Semiconductor (AOSL) 0.0 $128k 10k 12.80
eGain Communications Corporation (EGAN) 0.0 $170k 126k 1.35
Orbit/fr (ORFR) 0.0 $153k 55k 2.79
Citi 0.0 $78k 16k 4.76
Scientific Learning Corporation 0.0 $80k 26k 3.08
Akorn 0.0 $61k 10k 6.10
ClearOne Communications 0.0 $75k 20k 3.71
RELM Wireless Corporation 0.0 $63k 35k 1.80
DRI Corporation 0.0 $51k 45k 1.14
Senesco Technologies 0.0 $14k 50k 0.28
Spongetech Delivery Systems 0.0 $0 100k 0.00