Sponsored
The Analysis of OBERWEIS ASSET MANAGEMENT INC/'s Holdings & P&L
Currently, OBERWEIS ASSET MANAGEMENT INC/ holds 180 types of securities in its portfolio with a total value $3.4B. In the most recent quarter, they have increased their positions in CRDO (+346.6K shares, valued at $32.5M), DAN (+815.0K shares, valued at $27.4M), AAOI (+310.3K shares, valued at $26.3M); decreased their positions in AMBA (-322.7K shares, valued at $16.6M), FRSH (-2.0M shares, valued at $16.0M), LITE (-14.7K shares, valued at $10.3M); initiated new positions in DRS (+449.5K shares, valued at $20.0M), N/A (+653.4K shares, valued at $19.9M), CHYM (+1.0M shares, valued at $19.4M).
1M P&L
+308.3M+9.21%
3M P&L
+730.3M+24.96%
HY P&L
+1.1B+43.99%
P&L figures are estimated based on reported 13F stock holdings and market price changes. They are approximations and may not reflect actual fund performance. Stock split events may also affect the accuracy of these calculations, and we cannot guarantee that all splits have been fully accounted for.
Top Holding Treemap
Top Industries by Value
1Semiconductors293.7M
11.0%
2Communication Equipment201.1M
7.5%
3Software - Infrastructure146.0M
5.5%
Top Industries by Stock Count
1Software - Infrastructure11 stocks
6.5%
2Software - Application10 stocks
5.9%
3Semiconductors10 stocks
5.9%
Sponsored
Stock Holdings
TickerCompany NameSharesShares β³%Event DateReport DateHistory
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AAOI
15.21%Applied Optoelectronics Inc.
Shares2.3M
Event2026-03-31
Filed2026-05-15
LITE
-5.24%Lumentum Hldgs, Inc.
Shares266.2K
Event2026-03-31
Filed2026-05-15
CRDO
51.32%Credo Technology Group
Shares1.0M
Event2026-03-31
Filed2026-05-15
DOCN
19.09%DigitalOcean Holdings, Inc.
Shares927.5K
Event2026-03-31
Filed2026-05-15
SN
14.00%SharkNinja, Inc.
Shares600.0K
Event2026-03-31
Filed2026-05-15
NVMI
21.78%Nova Ltd.
Shares138.0K
Event2026-03-31
Filed2026-05-15
DAN
102.32%Dana Inc.
Shares1.6M
Event2026-03-31
Filed2026-05-15
BTSG
27.64%BrightSpring Health Services
Shares1.2M
Event2026-03-31
Filed2026-05-15
MTSI
20.63%Macom Technology Solutions
Shares215.9K
Event2026-03-31
Filed2026-05-15
RMBS
13.90%Rambus, Inc
Shares526.3K
Event2026-03-31
Filed2026-05-15
CLH
23.52%Clean Harbors, Inc.
Shares144.4K
Event2026-03-31
Filed2026-05-15
SITM
12.11%SiTime Corporation
Shares119.3K
Event2026-03-31
Filed2026-05-15
UCTT
1.91%Ultra Clean Holdings
Shares640.5K
Event2026-03-31
Filed2026-05-15
ECG
25.69%Everus Construction Group
Shares326.5K
Event2026-03-31
Filed2026-05-15
FTDR
17.53%Frontdoor, Inc.
Shares718.0K
Event2026-03-31
Filed2026-05-15
CRS
14.31%Carpenter Technology Corp.
Shares94.4K
Event2026-03-31
Filed2026-05-15
SKYW
2.69%Skywest Inc
Shares392.5K
Event2026-03-31
Filed2026-05-15
LSCC
19.01%Lattice Semiconductor Corporat
Shares374.4K
Event2026-03-31
Filed2026-05-15
GMED
45.26%Globus Medical, Inc.-A
Shares392.2K
Event2026-03-31
Filed2026-05-15
CAMT
1.78%Camtek, Ltd.
Shares222.8K
Event2026-03-31
Filed2026-05-15
ARQT
68.97%Arcutis Biotherapeutics, Inc.
Shares1.4M
Event2026-03-31
Filed2026-05-15
FLS
6.04%Flowserve Corporation
Shares434.7K
Event2026-03-31
Filed2026-05-15
SIMO
19.57%Silicon Motion Techn ADR
Shares282.6K
Event2026-03-31
Filed2026-05-15
LTH
9.55%Life Time Holdings, Inc.
Shares1.2M
Event2026-03-31
Filed2026-05-15
RSI
1.62%Rush Street Interactive, Inc.
Shares1.4M
Event2026-03-31
Filed2026-05-15
FCFS
26.17%FirstCash Holdings, Inc
Shares165.7K
Event2026-03-31
Filed2026-05-15
FSLY
55.27%Fastly, Inc.
Shares1.1M
Event2026-03-31
Filed2026-05-15
TPC
1.73%Tutor Perini Corp.
Shares393.9K
Event2026-03-31
Filed2026-05-15
BROS
47.96%Dutch Bros., Inc.
Shares598.5K
Event2026-03-31
Filed2026-05-15
SEI
44.97%Solaris Energy Infrastructur
Shares531.9K
Event2026-03-31
Filed2026-05-15
MMSI
57.84%Merit Medical System Inc
Shares424.2K
Event2026-03-31
Filed2026-05-15
FSS
60.74%Federal Signal Corp.
Shares267.6K
Event2026-03-31
Filed2026-05-15
AMSC
1.67%American Superconductor
Shares849.9K
Event2026-03-31
Filed2026-05-15
MRCY
-5.56%Mercury Systems, Inc.
Shares391.0K
Event2026-03-31
Filed2026-05-15
ACA
20.80%Arcosa, Inc.
Shares267.7K
Event2026-03-31
Filed2026-05-15
OSIS
5.12%Osi Systems, Inc.
Shares106.6K
Event2026-03-31
Filed2026-05-15
Core Natural Resources, Inc.
51.23%Core Natural Resources, Inc.
Shares269.8K
Event2026-03-31
Filed2026-05-15
WAY
38.89%Waystar Holding Corp.
Shares1.2M
Event2026-03-31
Filed2026-05-15
EHC
-19.36%Encompass Health Corporation
Shares289.5K
Event2026-03-31
Filed2026-05-15
VCYT
15.56%Veracyte, Inc.
Shares839.8K
Event2026-03-31
Filed2026-05-15
AIR
-10.11%AAR Corp.
Shares245.1K
Event2026-03-31
Filed2026-05-15
ICUI
21.23%ICU Medical, Inc.
Shares203.7K
Event2026-03-31
Filed2026-05-15
LFUS
15.25%Littelfuse, Inc.
Shares71.8K
Event2026-03-31
Filed2026-05-15
PRIM
1.71%Primoris Services Corp.
Shares166.1K
Event2026-03-31
Filed2026-05-15
RELY
45.02%Remitly Global, Inc.
Shares1.5M
Event2026-03-31
Filed2026-05-15
G
16.34%Genpact Ltd.
Shares606.8K
Event2026-03-31
Filed2026-05-15
AIZ
23.25%Assurant, Inc.
Shares102.3K
Event2026-03-31
Filed2026-05-15
BLBD
1.72%Blue Bird Corporation
Shares389.2K
Event2026-03-31
Filed2026-05-15
IMAX
-11.52%Imax Corp.
Shares577.1K
Event2026-03-31
Filed2026-05-15
LEVI
17.45%Levi Strauss & Co.
Shares1.2M
Event2026-03-31
Filed2026-05-15
ATEC
90.75%Alphatec Hldgs Inc.
Shares1.9M
Event2026-03-31
Filed2026-05-15
LASR
1.85%nLIGHT Inc.
Shares363.0K
Event2026-03-31
Filed2026-05-15
EYE
1.69%National Vision Holdings, Inc.
Shares797.8K
Event2026-03-31
Filed2026-05-15
ABCB
68.48%Ameris Bancorp
Shares263.5K
Event2026-03-31
Filed2026-05-15
LIVN
51.63%LivaNova Plc
Shares321.9K
Event2026-03-31
Filed2026-05-15
DRS
NewLeonardo DRS, Inc.
Shares449.5K
Event2026-03-31
Filed2026-05-15
URBN
9.91%Urban Outfitters, Inc.
Shares314.8K
Event2026-03-31
Filed2026-05-15
Indivior Plc
NewIndivior Plc
Shares653.4K
Event2026-03-31
Filed2026-05-15
LOPE
17.13%Grand Canyon Education, Inc.
Shares116.9K
Event2026-03-31
Filed2026-05-15
COMM
13.64%Vistance Networks, Inc.
Shares1.1M
Event2026-03-31
Filed2026-05-15
MTDR
23.16%Matador Resources Company
Shares312.7K
Event2026-03-31
Filed2026-05-15
VIAV
16.75%Viavi Solutions, Inc.
Shares593.2K
Event2026-03-31
Filed2026-05-15
CHYM
NewChime Financial Inc.
Shares1.0M
Event2026-03-31
Filed2026-05-15
PEGA
7.17%Pegasystems Inc.
Shares455.3K
Event2026-03-31
Filed2026-05-15
CPRX
32.98%Catalyst Pharmaceuticals, Inc.
Shares780.6K
Event2026-03-31
Filed2026-05-15
QTWO
17.15%Q2 Holdings, Inc.
Shares394.6K
Event2026-03-31
Filed2026-05-15
POWL
-29.86%Powell Industries Inc.
Shares34.2K
Event2026-03-31
Filed2026-05-15
IRTC
30.33%Irhythm Holdings, Inc.
Shares156.0K
Event2026-03-31
Filed2026-05-15
BOX
18.27%Box, Inc.
Shares771.5K
Event2026-03-31
Filed2026-05-15
AGX
1.06%Argan, Inc
Shares33.3K
Event2026-03-31
Filed2026-05-15
HNGE
NewHinge Health, Inc.
Shares465.8K
Event2026-03-31
Filed2026-05-15
NYT
-30.08%New York Times Co. Cl A
Shares211.7K
Event2026-03-31
Filed2026-05-15
AEO
28.29%American Eagle Outfitters
Shares1.0M
Event2026-03-31
Filed2026-05-15
ALHC
29.31%Alighnment Healthcare, Inc.
Shares966.6K
Event2026-03-31
Filed2026-05-15
ANIP
17.24%ANI Pharmaceuticals, Inc.
Shares221.4K
Event2026-03-31
Filed2026-05-15
NVST
NewEnvista Holdings Corp.
Shares665.4K
Event2026-03-31
Filed2026-05-15
WGS
31.49%Genedx Holdings Corp.
Shares261.4K
Event2026-03-31
Filed2026-05-15
SPXC
8.51%SPX Technologies, Inc.
Shares83.4K
Event2026-03-31
Filed2026-05-15
SHAK
NewShake Shack, Inc.
Shares187.6K
Event2026-03-31
Filed2026-05-15
CALX
36.97%Calix, Inc.
Shares335.0K
Event2026-03-31
Filed2026-05-15
SGHC
19.39%Super Group SGHC Ltd.
Shares1.5M
Event2026-03-31
Filed2026-05-15
EZPW
1.83%EZCorp, Inc.
Shares639.4K
Event2026-03-31
Filed2026-05-15
LMAT
27.77%LeMaitre Vascular, Inc.
Shares148.6K
Event2026-03-31
Filed2026-05-15
AEIS
23.89%Advanced Energy Industry, Inc.
Shares49.2K
Event2026-03-31
Filed2026-05-15
ZWS
32.40%Zurn Elkay Water Solutions Cor
Shares352.2K
Event2026-03-31
Filed2026-05-15
FN
20.09%Fabrinet
Shares30.3K
Event2026-03-31
Filed2026-05-15
Kiniksa Pharmaceuticals, Ltd.
1.87%Kiniksa Pharmaceuticals, Ltd.
Shares318.6K
Event2026-03-31
Filed2026-05-15
PAHC
32.08%Phibro Animal Health Corp
Shares277.1K
Event2026-03-31
Filed2026-05-15
DIOD
47.66%Diodes, Inc.
Shares224.3K
Event2026-03-31
Filed2026-05-15
AMBA
-52.22%Ambarella, Inc.
Shares295.2K
Event2026-03-31
Filed2026-05-15
MD
25.20%Pediatrix Medical Group, Inc.
Shares701.1K
Event2026-03-31
Filed2026-05-15
MGY
20.77%Magnolia Oil & Gas Corp.
Shares454.5K
Event2026-03-31
Filed2026-05-15
SKWD
37.73%Skyward Specialty Ins Group
Shares327.1K
Event2026-03-31
Filed2026-05-15
HALO
87.05%Halozyme Therapeutics, Inc.
Shares219.9K
Event2026-03-31
Filed2026-05-15
LQDA
13.03%Liquidia Corp.
Shares372.1K
Event2026-03-31
Filed2026-05-15
ARLO
NewArlo Technologies, Inc.
Shares982.3K
Event2026-03-31
Filed2026-05-15
HQY
17.70%HealthEquity Inc.
Shares166.6K
Event2026-03-31
Filed2026-05-15
PUMP
1.86%ProPetro Holding Corp.
Shares965.5K
Event2026-03-31
Filed2026-05-15
ZETA
13.56%Zeta Global Holdings Corp.
Shares871.1K
Event2026-03-31
Filed2026-05-15
MIR
22.45%Mirion Technologies, Inc.
Shares744.3K
Event2026-03-31
Filed2026-05-15
MOG.A
NewMoog Inc. - A
Shares44.9K
Event2026-03-31
Filed2026-05-15
IDCC
50.69%Interdigital, Inc.
Shares42.6K
Event2026-03-31
Filed2026-05-15
DCO
1.83%Ducommun Inc.
Shares99.9K
Event2026-03-31
Filed2026-05-15
PI
10.24%Impinj, Inc.
Shares118.1K
Event2026-03-31
Filed2026-05-15
ATEN
NewA10 Networks, Inc.
Shares504.3K
Event2026-03-31
Filed2026-05-15
Dave, Inc.
13.20%Dave, Inc.
Shares66.7K
Event2026-03-31
Filed2026-05-15
Seacoast Bkg Corp.
NewSeacoast Bkg Corp.
Shares378.9K
Event2026-03-31
Filed2026-05-15
AXGN
1.84%AxoGen Inc.
Shares342.4K
Event2026-03-31
Filed2026-05-15
BHE
1.82%Benchmark Electronics Inc
Shares201.9K
Event2026-03-31
Filed2026-05-15
ADPT
8.39%Adaptive Biotechnologies
Shares807.0K
Event2026-03-31
Filed2026-05-15
OSW
1.85%OneSpaWorld Holdings Limited
Shares485.7K
Event2026-03-31
Filed2026-05-15
NIC
21.23%Nicolet Bankshares, Inc.
Shares74.8K
Event2026-03-31
Filed2026-05-15
PDS
13.17%Precision Drilling Corp.
Shares112.6K
Event2026-03-31
Filed2026-05-15
TILE
1.86%Interface, Inc.
Shares443.9K
Event2026-03-31
Filed2026-05-15
ETON
1.85%Eton Pharmaceuticals, Inc.
Shares439.3K
Event2026-03-31
Filed2026-05-15
QLYS
10.30%Qualys, Inc.
Shares118.9K
Event2026-03-31
Filed2026-05-15
PLUS
23.99%EPlus, Inc.
Shares137.5K
Event2026-03-31
Filed2026-05-15
EVLV
55.11%Evolv Technologies Holdings
Shares1.7M
Event2026-03-31
Filed2026-05-15
BOOT
26.77%Boot Barn Hldgs, Inc.
Shares68.2K
Event2026-03-31
Filed2026-05-15
AMPX
NewAmprius Technologies, Inc.
Shares585.0K
Event2026-03-31
Filed2026-05-15
MHO
1.87%M/I Homes, Inc.
Shares76.4K
Event2026-03-31
Filed2026-05-15
FBK
1.82%FB Financial Corp.
Shares162.1K
Event2026-03-31
Filed2026-05-15
ADUS
14.32%Addus Homecare Corp.
Shares89.4K
Event2026-03-31
Filed2026-05-15
CRMD
50.43%CorMedix, Inc.
Shares1.2M
Event2026-03-31
Filed2026-05-15
AORT
1.87%Artivion, Inc
Shares221.1K
Event2026-03-31
Filed2026-05-15
CECO
-7.20%CECO Environmental Corp.
Shares135.0K
Event2026-03-31
Filed2026-05-15
Expro Group Holdings N.V.
1.86%Expro Group Holdings N.V.
Shares454.6K
Event2026-03-31
Filed2026-05-15
THR
NewThermon Group Hldgs Inc.
Shares154.7K
Event2026-03-31
Filed2026-05-15
MGNI
1.86%Magnite, Inc.
Shares647.6K
Event2026-03-31
Filed2026-05-15
LINC
-39.03%Lincoln EDL Svcs
Shares188.4K
Event2026-03-31
Filed2026-05-15
RDWR
1.85%Radware, Ltd.
Shares286.7K
Event2026-03-31
Filed2026-05-15
NPKI
1.85%NPK International, Inc.
Shares518.1K
Event2026-03-31
Filed2026-05-15
COCO
-33.12%The Vita Coco Co., Inc.
Shares156.1K
Event2026-03-31
Filed2026-05-15
APEI
NewAmerican Public Education, Inc
Shares130.4K
Event2026-03-31
Filed2026-05-15
BW
NewBabcock & Wilcox Enterprises,
Shares500.2K
Event2026-03-31
Filed2026-05-15
LIND
23.44%Lindblad Expeditions Holdings,
Shares378.7K
Event2026-03-31
Filed2026-05-15
VSEC
1.82%VSE Corp.
Shares34.0K
Event2026-03-31
Filed2026-05-15
KN
NewKnowles Corp.
Shares234.2K
Event2026-03-31
Filed2026-05-15
SRCE
1.77%1st Source Corp.
Shares86.2K
Event2026-03-31
Filed2026-05-15
CRAI
1.96%CRA Int'l Inc.
Shares36.5K
Event2026-03-31
Filed2026-05-15
GRC
1.93%The Gorman-Rupp Co.
Shares95.0K
Event2026-03-31
Filed2026-05-15
BVS
1.87%Bioventus, Inc.
Shares628.1K
Event2026-03-31
Filed2026-05-15
CNXN
NewPC Connection, Inc.
Shares96.2K
Event2026-03-31
Filed2026-05-15
HURN
1.93%Huron Consulting Group, Inc.
Shares42.3K
Event2026-03-31
Filed2026-05-15
TCMD
1.88%Tactile Sys Technology, Inc.
Shares202.8K
Event2026-03-31
Filed2026-05-15
COUR
1.86%Coursera, Inc.
Shares821.8K
Event2026-03-31
Filed2026-05-15
BRCB
NewBlack Rock Coffee Bar, Inc.
Shares365.6K
Event2026-03-31
Filed2026-05-15
RCKY
NewRocky Brands, Inc.
Shares118.0K
Event2026-03-31
Filed2026-05-15
CLMB
307.70%Climb Global Solutions, Inc.
Shares211.8K
Event2026-03-31
Filed2026-05-15
RDVT
1.85%Red Violet, Inc.
Shares104.7K
Event2026-03-31
Filed2026-05-15
SPY
15.52%SPDR S&P 500 ETF Trust
Shares2.4K
Event2026-03-31
Filed2026-05-15
HTHT
0.00%H World Group Ltd.
Shares24.0K
Event2026-03-31
Filed2026-05-15
MSFT
0.00%Microsoft Corp.
Shares2.7K
Event2026-03-31
Filed2026-05-15
JPM
4.33%JP Morgan Chase & Company Inc.
Shares3.2K
Event2026-03-31
Filed2026-05-15
AAPL
1.58%Apple, Inc.
Shares3.5K
Event2026-03-31
Filed2026-05-15
FUTU
-59.09%Futu Holdings Ltd.
Shares4.5K
Event2026-03-31
Filed2026-05-15
JNJ
11.90%Johnson & Johnson
Shares2.3K
Event2026-03-31
Filed2026-05-15
Alphabet, Inc. Cl A
0.00%Alphabet, Inc. Cl A
Shares1.9K
Event2026-03-31
Filed2026-05-15
ACMR
NewACM Research, Inc. Class A
Shares13.0K
Event2026-03-31
Filed2026-05-15
Alphabet, Inc. Cl C
0.00%Alphabet, Inc. Cl C
Shares1.6K
Event2026-03-31
Filed2026-05-15
FRSH
-97.19%Freshworks, Inc.
Shares57.8K
Event2026-03-31
Filed2026-05-15
TRV
0.06%The Travelers Co., Inc.
Shares1.6K
Event2026-03-31
Filed2026-05-15
AMGN
0.10%Amgen, Inc.
Shares1.0K
Event2026-03-31
Filed2026-05-15
WEAV
-92.71%Weave Communications, Inc.
Shares72.8K
Event2026-03-31
Filed2026-05-15
MA
0.00%Mastercard, Inc.
Shares662
Event2026-03-31
Filed2026-05-15
RMD
0.00%Resmed Inc.
Shares1.4K
Event2026-03-31
Filed2026-05-15
NEM
0.07%Newmont Mining
Shares2.9K
Event2026-03-31
Filed2026-05-15
BK
-1.68%Bank of New York Mellon Corp.
Shares2.5K
Event2026-03-31
Filed2026-05-15
GLD
0.00%SPDR Gold Shares ETF
Shares675
Event2026-03-31
Filed2026-05-15
CAT
-8.93%Caterpillar, Inc.
Shares408
Event2026-03-31
Filed2026-05-15
IBEX Ltd.
-95.78%IBEX Ltd.
Shares10.2K
Event2026-03-31
Filed2026-05-15
WMT
-2.29%Wal Mart Stores Inc.
Shares2.1K
Event2026-03-31
Filed2026-05-15
MCD
0.23%McDonald's Corporation
Shares855
Event2026-03-31
Filed2026-05-15
WFC-PL
0.00%Wells Fargo Co New Perp Pfd
Shares225
Event2026-03-31
Filed2026-05-15
MU
-84.44%Micron Technology
Shares700
Event2026-03-31
Filed2026-05-15
XOM
NewExxon Mobil Corp.
Shares1.3K
Event2026-03-31
Filed2026-05-15
AFL
0.00%Aflac Inc.
Shares2.0K
Event2026-03-31
Filed2026-05-15
FCX
NewFreeport Mcmoran Copper & Gold
Shares3.6K
Event2026-03-31
Filed2026-05-15
Merck & Co.
NewMerck & Co.
Shares1.7K
Event2026-03-31
Filed2026-05-15
Xenacare Hldgs, Inc.
0.00%Xenacare Hldgs, Inc.
Shares140.0K
Event2026-03-31
Filed2026-05-15
Call Option Holdings
No call option holdings data available
No call option holdings data available
Put Option Holdings
No put option holdings data available
No put option holdings data available