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OAM

Oberweis Asset Management Portfolio holdings

AUM $3.39B
1-Year Est. Return 105.5%
This Fund
S&P 500
This Quarter Est. Return
+15.37%
1 Year Est. Return
+105.5%
3 Year Est. Return
+311.52%
5 Year Est. Return
+632.9%
10 Year Est. Return
+11,604.3%
AUM
$1.07B
AUM Growth
+$132M
Cap. Flow
+$30.6M
Cap. Flow %
2.85%
Top 10 Hldgs %
21.68%
Holding
238
New
43
Increased
106
Reduced
35
Closed
46

Top Buys

Rank Stock Value
1
AMPH icon
Amphastar Pharmaceuticals
AMPH
+$9.86M
2
ACLS icon
Axcelis
ACLS
+$7.14M
3
ITGR icon
Integer Holdings
ITGR
+$6.11M
4
SKYW icon
Skywest
SKYW
+$6.01M
5
ESAB icon
ESAB
ESAB
+$5.99M

Top Sells

Rank Stock Value
1
CSTM icon
Constellium
CSTM
+$19M
2
LNTH icon
Lantheus
LNTH
+$11.8M
3
EXTR icon
Extreme Networks
EXTR
+$9.24M
4
BDC icon
Belden
BDC
+$8.83M
5
DECK icon
Deckers Outdoor
DECK
+$8.33M

Sector Composition

Rank Sector Weight
1 Technology 25.58%
2 Industrials 21.72%
3 Healthcare 21.62%
4 Consumer Discretionary 10.62%
5 Energy 5.6%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
INSW icon
101
International Seaways
INSW
$4.61B
$4.3M 0.4%
94,600
+8,100
+9% +$373K
VSEC icon
102
VSE Corp
VSEC
$6.33B
$4.28M 0.4%
66,300
+18,600
+39% +$1.09M
AVNW icon
103
Aviat Networks
AVNW
$272M
$4.22M 0.39%
129,207
+3,900
+3% +$116K
AMSC icon
104
American Superconductor
AMSC
$1.59B
$4.19M 0.39%
+375,800
New +$3.18M
ELF icon
105
e.l.f. Beauty
ELF
$5.44B
$4.11M 0.38%
28,500
+6,700
+31% +$773K
WING icon
106
Wingstop
WING
$3.18B
$4.08M 0.38%
15,900
+1,700
+12% +$367K
MCRI icon
107
Monarch Casino & Resort
MCRI
$2.19B
$4.05M 0.38%
58,500
+4,700
+9% +$299K
BOOT icon
108
Boot Barn
BOOT
$4.97B
$3.96M 0.37%
51,600
-9,200
-15% -$692K
EOLS icon
109
Evolus
EOLS
$489M
$3.91M 0.36%
+371,400
New +$3.32M
LIVN icon
110
LivaNova
LIVN
$4.17B
$3.84M 0.36%
+74,200
New +$3.59M
OPCH icon
111
Option Care Health
OPCH
$3.54B
$3.83M 0.36%
113,700
-54,100
-32% -$1.66M
CLW icon
112
Clearwater Paper
CLW
$369M
$3.75M 0.35%
103,900
+2,900
+3% +$104K
GO icon
113
Grocery Outlet
GO
$959M
$3.75M 0.35%
139,200
+23,300
+20% +$653K
LMAT icon
114
LeMaitre Vascular
LMAT
$1.85B
$3.71M 0.35%
65,300
+8,300
+15% +$435K
HLX icon
115
Helix Energy Solutions
HLX
$1.45B
$3.67M 0.34%
357,400
+21,800
+6% +$217K
PDD icon
116
Pinduoduo
PDD
$129B
$3.66M 0.34%
25,000
– –
FIX icon
117
Comfort Systems
FIX
$60.3B
$3.64M 0.34%
17,700
+3,700
+26% +$684K
PRMW
118
DELISTED
Primo Water Corporation
PRMW
$3.62M 0.34%
240,800
+29,300
+14% +$418K
HALO icon
119
Halozyme
HALO
$10.2B
$3.56M 0.33%
96,300
+45,800
+91% +$1.72M
LOPE icon
120
Grand Canyon Education
LOPE
$3.88B
$3.54M 0.33%
+26,800
New +$3.49M
OSW icon
121
OneSpaWorld
OSW
$2.69B
$3.5M 0.33%
+248,400
New +$2.89M
QLYS icon
122
Qualys
QLYS
$6.29B
$3.45M 0.32%
17,600
+1,000
+6% +$175K
MBWM icon
123
Mercantile Bank Corp
MBWM
$1.06B
$3.45M 0.32%
85,315
-288
-0.3% -$10.1K
CDNS icon
124
Cadence Design Systems
CDNS
$93.2B
$3.43M 0.32%
12,600
-4,600
-27% -$1.19M
ROCK icon
125
Gibraltar Industries
ROCK
$1.51B
$3.42M 0.32%
43,300
+7,600
+21% +$519K
3 4
5
6 7

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DFO
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VFCM
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MCM
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EFM
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DIA
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5NCM
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QCG
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Oberweis Asset Management's Q4 2023 Portfolio in Review

As of Q4 2023, Oberweis Asset Management held 238 positions worth $1.07B, up 14% from $941M the previous quarter. Its ten largest holdings account for 22% of the portfolio.

Oberweis Asset Management's Q4 2023 filing shows 43 new, 106 increased, 35 reduced and 46 closed positions. Its largest new stake was Integer Holdings: 71,000 shares worth $7.03M. The largest sale was Constellium, an estimated $19M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, down from 28% a quarter earlier, followed by Industrials and Healthcare.

  • Oberweis Asset Management's largest Q4 2023 buy was Integer Holdings: 71,000 shares worth $7.03M.
  • Oberweis Asset Management added most to Amphastar Pharmaceuticals in Q4 2023, an estimated $9.86M increase.
  • Oberweis Asset Management's biggest Q4 2023 reduction was Constellium, cutting an estimated $19M.
  • Oberweis Asset Management fully exited Lantheus in Q4 2023, selling an estimated $11.8M.
  • Oberweis Asset Management's ten largest holdings make up 22% of its $1.07B portfolio in Q4 2023.
  • Oberweis Asset Management opened 43 new positions and closed 46 in Q4 2023.
  • Oberweis Asset Management's portfolio value rose 14% quarter-over-quarter to $1.07B.

Based on Oberweis Asset Management's 13F filing for Q4 2023, filed 14 Feb 2024.