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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
HQY icon
151
HealthEquity
HQY
$8.65B
$2.57M 0.24%
+38,700
New +$2.68M
POWL icon
152
Powell Industries
POWL
$7.55B
$2.53M 0.24%
85,800
+9,600
+13% +$267K
CRS icon
153
Carpenter Technology
CRS
$27.7B
$2.53M 0.24%
+35,700
New +$2.4M
LRN icon
154
Stride
LRN
$3.32B
$2.52M 0.24%
+42,500
New +$2.33M
MGY icon
155
Magnolia Oil & Gas
MGY
$5.86B
$2.5M 0.23%
117,200
+18,200
+18% +$398K
LBRT icon
156
Liberty Energy
LBRT
$3.27B
$2.49M 0.23%
137,400
-12,000
-8% -$228K
LNW
157
DELISTED
Light & Wonder
LNW
$2.47M 0.23%
+30,100
New +$2.42M
ATRC icon
158
AtriCure
ATRC
$2.01B
$2.47M 0.23%
69,100
+21,800
+46% +$811K
HIBB
159
DELISTED
Hibbett, Inc. Common Stock
HIBB
$2.46M 0.23%
+34,100
New +$1.91M
GRC icon
160
Gorman-Rupp
GRC
$2.23B
$2.45M 0.23%
68,900
+3,900
+6% +$126K
QTRX icon
161
Quanterix
QTRX
$180M
$2.4M 0.22%
87,800
+4,400
+5% +$104K
ANIP icon
162
ANI Pharmaceuticals
ANIP
$1.88B
$2.4M 0.22%
43,500
+10,500
+32% +$578K
TRNS icon
163
Transcat
TRNS
$885M
$2.38M 0.22%
+21,800
New +$2.1M
MIRM icon
164
Mirum Pharmaceuticals
MIRM
$5.74B
$2.28M 0.21%
+77,400
New +$2.34M
PDFS icon
165
PDF Solutions
PDFS
$1.92B
$2.23M 0.21%
69,500
+3,500
+5% +$106K
EPAC icon
166
Enerpac Tool Group
EPAC
$1.92B
$2.22M 0.21%
+71,300
New +$2.03M
AVPT icon
167
AvePoint
AVPT
$2.71B
$1.98M 0.18%
241,100
-183,900
-43% -$1.44M
TSM icon
168
TSMC
TSM
$2.17T
$1.77M 0.16%
17,000
+5,000
+42% +$477K
SPY icon
169
State Street SPDR S&P 500 ETF Trust
SPY
$818B
$1.71M 0.16%
3,588
-9
-0.3% -$4.01K
MNSO icon
170
MINISO
MNSO
$3.75B
$1.64M 0.15%
80,400
-10,000
-11% -$240K
LI icon
171
Li Auto
LI
$12.5B
$1.24M 0.12%
33,000
-5,000
-13% -$180K
FLL icon
172
Full House Resorts
FLL
$79.4M
$1.2M 0.11%
223,143
– –
MSFT icon
173
Microsoft
MSFT
$3.71T
$1.03M 0.1%
2,735
-100
-4% -$35.6K
LEGN icon
174
Legend Biotech
LEGN
$3.73B
$963K 0.09%
16,000
– –
TAL icon
175
TAL Education Group
TAL
$6.91B
$695K 0.06%
+55,000
New +$570K
5 6
7
8 9

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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.