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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
CSTM icon
1
Constellium
CSTM
$3.96B
$36.9M 3.44%
1,850,371
-1,082,700
-37% -$19M
ACLS icon
2
Axcelis
ACLS
$4.12B
$31.8M 2.96%
245,329
+51,770
+27% +$7.14M
AEHR icon
3
Aehr Test Systems
AEHR
$2.48B
$28.9M 2.7%
1,091,202
+181,094
+20% +$5.28M
ATEC icon
4
Alphatec Holdings
ATEC
$1.27B
$24.3M 2.26%
1,607,820
+371,780
+30% +$4.44M
WFRD icon
5
Weatherford International
WFRD
$6.36B
$23.5M 2.19%
240,060
+43,140
+22% +$4.01M
AMPH icon
6
Amphastar Pharmaceuticals
AMPH
$825M
$21M 1.96%
340,265
+187,765
+123% +$9.86M
VCYT icon
7
Veracyte
VCYT
$4.52B
$18.1M 1.68%
656,810
+59,270
+10% +$1.43M
AAOI icon
8
Applied Optoelectronics
AAOI
$8.04B
$17.2M 1.61%
891,915
+423,500
+90% +$5.53M
TMDX icon
9
Transmedics
TMDX
$2.5B
$16.8M 1.57%
212,900
+61,800
+41% +$3.73M
PERI icon
10
Perion Network
PERI
$367M
$14.1M 1.31%
456,290
-14,000
-3% -$398K
OLED icon
11
Universal Display
OLED
$3.71B
$12.7M 1.19%
66,542
+4,527
+7% +$748K
ADMA icon
12
ADMA Biologics
ADMA
$1.92B
$12.3M 1.14%
2,710,700
+632,300
+30% +$2.34M
CAMT icon
13
Camtek
CAMT
$6.9B
$12.1M 1.13%
174,480
+8,100
+5% +$493K
VRT icon
14
Vertiv
VRT
$112B
$11.2M 1.05%
233,672
-147,318
-39% -$6.27M
AXNX
15
DELISTED
Axonics, Inc. Common Stock
AXNX
$11.1M 1.03%
178,470
+16,850
+10% +$943K
OSK icon
16
Oshkosh
OSK
$9.67B
$10.7M 1%
98,899
+44,763
+83% +$4.33M
FLS icon
17
Flowserve
FLS
$9.25B
$10.1M 0.94%
245,271
+34,431
+16% +$1.32M
CLH icon
18
Clean Harbors
CLH
$16.1B
$9.96M 0.93%
57,055
+11,640
+26% +$1.91M
EHC icon
19
Encompass Health
EHC
$11.2B
$9.69M 0.9%
145,245
+33,645
+30% +$2.18M
FTDR icon
20
Frontdoor
FTDR
$5.02B
$9.55M 0.89%
271,100
+106,400
+65% +$3.54M
HAE icon
21
Haemonetics
HAE
$3.58B
$9.05M 0.84%
105,880
+28,480
+37% +$2.46M
ICFI icon
22
ICF International
ICFI
$1.44B
$8.86M 0.83%
66,100
-29,600
-31% -$3.89M
AVAV icon
23
AeroVironment
AVAV
$7.57B
$8.8M 0.82%
69,800
+700
+1% +$85.6K
CECO icon
24
Ceco Environmental
CECO
$4.42B
$8.65M 0.81%
426,700
+10,000
+2% +$182K
UCTT
25
Ultra Clean Holdings
UCTT
$4.16B
$8.44M 0.79%
247,100
+29,000
+13% +$806K
1
2 3 4 5

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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.