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OBERWEIS ASSET MANAGEMENT INC/ 13F 持仓明细(2026-03-31) · 小隐寺数据中心
OBERWEIS ASSET MANAGEMENT INC/
报告期 2026-03-31 · CIK 0000937886
持仓数
180
前50大市值合计
$2.09B
报告期
2026-03-31
当前持仓
调仓
组合演变
前 6 大持仓 + 其他 逐季市值($B) · 点图或下方季度看该季调仓
看某季调仓:
26Q1
25Q4
25Q3
25Q2
25Q1
24Q4
24Q3
24Q2
24Q1
23Q4
23Q3
23Q2
23Q1
22Q4
22Q3
22Q2
22Q1
21Q4
21Q3
22Q3 调仓
2022-06-30 → 2022-09-30 · 共 150 项
建仓 34
增持 67
减持 24
清仓 25
方向
标的
Δ市值
现股数(环比)
增持
—
Constellium NV Cl A
-$13.8M
5,505,076
+4%
增持
AEHR
Aehr Test Systems
+$5.9M
508,339
+190%
减持
DAVA
Endava Plc Ads
-$5.1M
369,867
-7%
调仓由相邻两季 13F 持仓相减推导(非逐笔成交);方向按股数增减,Δ市值受股价波动影响、符号可与方向相反;13F 申报滞后最长 45 天。
增持
ACLS
Axcelis Technologies
+$3.9M
253,219
+22%
减持
—
Nova Measuring Instruments
-$3.7M
517,213
-4%
清仓
—
Sierra Wireless, Inc.
-$3.4M
0
-100%
增持
CLFD
Clearfield, Inc.
+$2.9M
58,990
+12%
减持
—
Dada Nexus Limited
-$2.4M
431,745
-20%
增持
AMPH
Amphastar Pharmaceuticals, Inc
+$2.2M
101,500
+467%
清仓
—
ChannelAdvisor Corporation
-$2.1M
0
-100%
清仓
DZSIQ
DZS, Inc.
-$1.9M
0
-100%
增持
DECK
Deckers Outdoor Corp.
+$1.9M
27,160
+5%
减持
CROX
Crocs, Inc.
+$1.9M
98,950
-1%
增持
AMRC
Ameresco, Inc.
+$1.9M
58,008
+32%
增持
—
Model N, Inc.
+$1.8M
141,740
+18%
清仓
RPD
Rapid7, Inc.
-$1.7M
0
-100%
建仓
FSS
Federal Signal Corp.
+$1.7M
45,000
清仓
BEKE
KE Holdings, Inc.
-$1.6M
0
-100%
建仓
PRSU
Viad Corp.
+$1.6M
50,700
建仓
STKL
SunOpta, Inc.
+$1.6M
175,100
增持
BDC
Belden, Inc.
+$1.6M
75,165
+36%
增持
—
Super Micro Computer Inc.
+$1.5M
57,380
+43%
增持
MGPI
MGP Ingredients, Inc.
+$1.5M
21,330
+194%
清仓
—
Cyberoptics Corp.
-$1.5M
0
-100%
建仓
AXTI
AXT Inc
+$1.5M
218,900
增持
CLH
Clean Harbors, Inc.
+$1.5M
22,675
+91%
建仓
DXLG
Destination XL Group, Inc.
+$1.4M
266,400
建仓
CECO
CECO Environmental Corp.
+$1.4M
157,200
增持
BELFB
Bel Fuse, Inc.
+$1.4M
104,800
+29%
增持
ATEC
Alphatec Hldgs Inc.
+$1.3M
452,560
+13%
建仓
TRIP
TripAdvisor, Inc.
+$1.3M
58,600
增持
—
PDC Energy, Inc.
+$1.3M
27,294
+457%
建仓
—
H&E Equipment Services, Inc.
+$1.3M
44,900
建仓
—
Playa Hotels & Resorts N.V.
+$1.3M
218,000
建仓
VVX
V2X, Inc.
+$1.2M
34,200
建仓
—
Fabrinet
+$1.2M
12,400
增持
PI
Impinj, Inc.
+$1.2M
35,700
+23%
建仓
—
Haynes Intl, Inc.
+$1.1M
32,200
增持
EVH
Evolent Health, Inc.
+$1.1M
98,410
+26%
建仓
CALX
Calix, Inc.
+$1.1M
18,400
建仓
CLW
Clearwater Paper Corp
+$1.1M
29,500
清仓
GIC
Global Inudstrial Company
-$1.1M
0
-100%
减持
SYNA
Synaptics, Inc.
-$1.1M
53,530
-1%
增持
VC
Visteon Corp.
+$1.1M
13,900
+266%
建仓
KWR
Quaker Chemical Corporation
+$1.1M
7,300
增持
—
Inmode Ltd.
+$1.0M
73,950
+49%
清仓
KFRC
KForce, Inc.
-$1.0M
0
-100%
建仓
MOD
Modine Mfg Co Com
+$1.0M
78,200
建仓
MP
MP Materials Corp.
+$969.0K
35,500
建仓
HLIT
Harmonic, Inc.
+$940.0K
71,900
清仓
TBI
TrueBlue, Inc.
-$929.0K
0
-100%
减持
UCTT
Ultra Clean Holdings
-$924.0K
92,640
-17%
建仓
ALTG
Alta Equipment Group, Inc.
+$914.0K
83,000
建仓
CRK
Comstock Res
+$896.0K
51,800
增持
ICFI
ICF International, Inc.
+$869.0K
29,500
+19%
减持
DDOG
Datadog, Inc. Class A
-$863.0K
43,700
-12%
建仓
FOXF
Fox Factory Hldg Corp.
+$854.0K
10,800
减持
III
Information Svcs Group, Inc.
-$820.0K
171,700
-29%
建仓
ATI
ATI, Inc.
+$798.0K
30,000
减持
—
Guess, Inc
-$796.0K
164,541
-13%
增持
—
Angiodynamics, Inc.
+$780.0K
207,400
+16%
减持
SCSC
Scansource, Inc.
-$765.0K
33,900
-36%
增持
MXL
Maxlinear, Inc. Class A
+$740.0K
75,435
+49%
增持
LRN
Stride, Inc.
+$737.0K
35,600
+91%
建仓
LMAT
LeMaitre Vascular, Inc.
+$725.0K
14,300
增持
MTSI
Macom Technology Solutions
+$711.0K
20,400
+172%
建仓
CAL
Caleres Inc.
+$695.0K
28,700
增持
—
SeaWorld Entertainment Inc.
+$671.0K
45,760
+43%
建仓
LBRT
Liberty Energy, Inc.
+$648.0K
51,100
增持
OPCH
Option Care Health Inc.
+$641.0K
36,700
+98%
增持
EXTR
Extreme Networks, Inc.
+$624.0K
139,000
+4%
增持
ABM
ABM Industries, Inc.
+$622.0K
28,300
+167%
增持
FELE
Franklin Electric
+$621.0K
13,700
+101%
建仓
UNM
UNUM Group
+$617.0K
15,900
建仓
MTDR
Matador Resources Company
+$612.0K
12,500
增持
ADTN
Adtran, Inc.
+$608.0K
95,000
+33%
清仓
MBUU
Malibu Boats, Inc.
-$608.0K
0
-100%
增持
IPAR
Inter Parfums
+$605.0K
14,600
+115%
增持
—
Perion Network, Ltd.
+$598.0K
167,000
+16%
减持
BOOT
Boot Barn Hldgs, Inc.
-$578.0K
50,680
-1%
增持
FORR
Forrester Research, Inc.
-$571.0K
58,000
+4%
清仓
UTI
Universal Technical Inst, Inc.
-$570.0K
0
-100%
减持
—
Alpha & Omega Semiconductor
-$569.0K
48,700
-21%
建仓
—
Forward Air Corp.
+$560.0K
6,200
增持
—
ShockWave Medical, Inc.
+$559.0K
2,800
+143%
增持
UFPI
UFP Industries, Inc.
+$546.0K
12,100
+152%
清仓
KC
Kingsoft Cloud Holdings Limite
-$540.0K
0
-100%
增持
OI
O-I Glass, Inc.
+$530.0K
69,000
+165%
增持
CBT
Cabot Corp.
+$529.0K
26,304
+46%
增持
—
NV5 Global, Inc
+$527.0K
6,800
+152%
减持
RCKY
Rocky Brands, Inc.
-$516.0K
34,600
-2%
增持
FCFS
FirstCash Holdings, Inc
+$496.0K
13,400
+91%
清仓
KFY
Korn Ferry
-$493.0K
0
-100%
增持
CALY
Topgolf Callaway Brands Corp.
+$484.0K
51,000
+109%
增持
—
Univar Solutions, Inc.
+$480.0K
37,500
+150%
建仓
TXRH
Texas Roadhouse
+$454.0K
5,200
增持
MMSI
Merit Medical System Inc
+$449.0K
16,100
+89%
增持
NSP
Insperity, Inc.
+$448.0K
8,300
+108%
增持
MGY
Magnolia Oil & Gas Corp.
+$446.0K
38,200
+158%
清仓
DIOD
Diodes, Inc.
-$446.0K
0
-100%
增持
—
Veritiv Corp.
+$443.0K
61,642
+20%
建仓
MUSA
Murphy USA, Inc.
+$440.0K
1,600
增持
AMN
AMN Healthcare Svcs
+$418.0K
8,400
+95%
增持
SKY
Skyline Champion Corporation
+$403.0K
27,250
+24%
建仓
INSP
Inspire Medical Systems, Inc.
+$399.0K
2,250
增持
EZPW
EZCorp, Inc.
+$396.0K
205,500
+30%
增持
—
Everi Hldgs, Inc.
+$389.0K
153,800
+19%
增持
CTS
CTS Corp.
+$388.0K
41,600
+5%
建仓
—
Flushing Financial Corp.
+$385.0K
19,900
增持
—
Applied Industrial
+$384.0K
8,500
+67%
增持
PTEN
Patterson-Uti Energy, Inc.
-$382.0K
133,400
+8%
减持
ARLO
Arlo Technologies, Inc.
-$377.0K
146,400
-13%
增持
—
Perficient Inc.
-$367.0K
18,200
+8%
增持
SLAB
Silicon Laboratories, Inc.
+$344.0K
7,050
+88%
清仓
AVNT
Avient Corporation
-$333.0K
0
-100%
减持
—
Resources Connection, Inc.
-$319.0K
119,200
-2%
减持
DLAPQ
Delta Apparel
-$315.0K
21,300
-1%
建仓
NOVT
Novanta, Inc.
+$312.0K
2,700
清仓
PATK
Patrick Industries, Inc.
-$311.0K
0
-100%
增持
NOV
NOV, Inc.
+$310.0K
40,800
+97%
减持
CEVA
Ceva Inc.
-$308.0K
37,900
-2%
增持
MHO
M/I Homes, Inc.
+$307.0K
47,900
+33%
增持
FNKO
Funko, Inc.
+$306.0K
172,900
+21%
清仓
ZIP
ZipRecruiter, Inc.
-$299.0K
0
-100%
增持
MCRI
Monarch Casino & Resort, Inc.
+$287.0K
11,600
+87%
增持
AVNW
Aviat Networks, Inc.
+$284.0K
76,207
+6%
减持
PDD
Pinduoduo Inc.
-$282.0K
35,000
-13%
增持
CERS
Cerus Corp.
-$280.0K
210,600
+7%
清仓
—
Wells Fargo Co New Perp Pfd
-$273.0K
0
-100%
增持
—
Techtarget, Inc.
+$267.0K
10,600
+93%
清仓
—
Focus Finl Partners, Inc.
-$259.0K
0
-100%
清仓
CARG
CarGurus, Inc.
-$254.0K
0
-100%
减持
LNTH
Lantheus Hldgs Inc.
+$251.0K
193,950
-4%
清仓
STC
Stewart Information Services
-$249.0K
0
-100%
增持
—
Dynavax Technologies Corp.
-$219.0K
144,400
+5%
减持
EIG
Employers Holdings, Inc.
-$217.0K
26,500
-2%
清仓
VZ
Verizon Communications
-$216.0K
0
-100%
减持
ALNT
Allied Motion Technologies
+$211.0K
38,100
-1%
增持
YUMC
Yum China Hldgs, Inc.
+$207.0K
30,500
+20%
清仓
MCD
McDonald's Corporation
-$206.0K
0
-100%
建仓
WMT
Wal Mart Stores Inc.
+$206.0K
1,585
减持
ACHC
Acadia Healthcare Co., Inc.
-$205.0K
55,005
-17%
减持
TITN
Titan Machinery, Inc.
+$202.0K
38,000
-2%
增持
TDC
Teradata Corp
+$201.0K
43,620
+40%
清仓
—
Tri Pointe Homes, Inc.
-$192.0K
0
-100%
清仓
—
Arco Platform Ltd. Com Cl A
-$187.0K
0
-100%
增持
TWI
Titan Int'l Inc.
-$186.0K
168,100
+14%
减持
IMXI
International Money Express, I
-$184.0K
68,900
-20%
增持
ASYS
Amtech Systems, Inc.
+$173.0K
113,900
+5%
增持
BANC
Banc of California, Inc.
+$170.0K
40,100
+50%
