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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
-6.15%
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
$2.01B
AUM Growth
-$115M
Cap. Flow
+$108M
Cap. Flow %
5.41%
Top 10 Hldgs %
18.43%
Holding
220
New
24
Increased
67
Reduced
19
Closed
28

Top Buys

Rank Stock Value
1
AMBA icon
Ambarella
AMBA
+$26.4M
2
LTH icon
Life Time Group Holdings
LTH
+$23.4M
3
AAOI icon
Applied Optoelectronics
AAOI
+$22.4M
4
WAY
Waystar Holding Corp
WAY
+$19.1M
5
CRDO icon
Credo Technology Group
CRDO
+$18.7M

Top Sells

Rank Stock Value
1
ANF icon
Abercrombie & Fitch
ANF
+$22M
2
HIMS icon
Hims & Hers Health
HIMS
+$20.4M
3
WFRD icon
Weatherford International
WFRD
+$19.8M
4
LIVN icon
LivaNova
LIVN
+$19.3M
5
TNDM icon
Tandem Diabetes Care
TNDM
+$18.2M

Sector Composition

Rank Sector Weight
1 Technology 33.93%
2 Healthcare 19.79%
3 Industrials 14.45%
4 Consumer Discretionary 14.32%
5 Consumer Staples 5.84%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
HQY icon
76
HealthEquity
HQY
$8.75B
$9.36M 0.47%
105,900
+14,400
+16% +$1.48M
MGY icon
77
Magnolia Oil & Gas
MGY
$5.94B
$9.33M 0.46%
369,200
+62,900
+21% +$1.52M
SIMO icon
78
Silicon Motion
SIMO
$8.68B
$9.26M 0.46%
183,100
+25,200
+16% +$1.36M
QLYS icon
79
Qualys
QLYS
$6.35B
$9.08M 0.45%
72,100
+24,300
+51% +$3.29M
EXLS icon
80
EXL Service
EXLS
$5.29B
$9.01M 0.45%
190,800
– –
MTDR icon
81
Matador Resources
MTDR
$6.09B
$8.96M 0.45%
175,300
+30,500
+21% +$1.69M
WEAV icon
82
Weave Communications
WEAV
$423M
$8.64M 0.43%
779,200
+9,050
+1% +$130K
AGX icon
83
Argan
AGX
$8.37B
$8.63M 0.43%
65,790
+19,890
+43% +$2.78M
LMAT icon
84
LeMaitre Vascular
LMAT
$1.86B
$8.56M 0.43%
102,065
-240
-0.2% -$22.3K
KRYS icon
85
Krystal Biotech
KRYS
$9.66B
$8.44M 0.42%
46,800
– –
TILE icon
86
Interface
TILE
$2.22B
$8.44M 0.42%
425,300
-54,800
-11% -$1.19M
FCFS icon
87
FirstCash
FCFS
$8.78B
$8.43M 0.42%
70,100
– –
OSPN icon
88
OneSpan
OSPN
$618M
$8.33M 0.42%
546,350
+900
+0.2% +$16K
ABCB icon
89
Ameris Bancorp
ABCB
$5.89B
$8.3M 0.41%
144,100
– –
LMB icon
90
Limbach Holdings
LMB
$581M
$8.25M 0.41%
110,800
– –
EOLS icon
91
Evolus
EOLS
$501M
$8.15M 0.41%
677,600
– –
MD icon
92
Pediatrix Medical
MD
$2.2B
$7.91M 0.39%
545,600
+79,000
+17% +$1.12M
GDYN icon
93
Grid Dynamics Holdings
GDYN
$615M
$7.87M 0.39%
503,000
– –
SEI
94
Solaris Energy Infrastructure
SEI
$3.82B
$7.83M 0.39%
+360,000
New +$9.98M
OSW icon
95
OneSpaWorld
OSW
$2.66B
$7.81M 0.39%
465,400
– –
BOOT icon
96
Boot Barn
BOOT
$4.95B
$7.81M 0.39%
72,700
+21,900
+43% +$2.93M
TPC
97
Tutor Perini Cor
TPC
$5.21B
$7.79M 0.39%
+336,200
New +$8.29M
ICHR icon
98
Ichor Holdings
ICHR
$2.56B
$7.64M 0.38%
337,800
– –
CDNA icon
99
CareDx
CDNA
$2.42B
$7.51M 0.37%
423,271
-200
-0% -$4.31K
OSCR icon
100
Oscar Health
OSCR
$8.61B
$7.45M 0.37%
568,330
-25,520
-4% -$379K
2 3
4
5 6

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Oberweis Asset Management's Q1 2025 Portfolio in Review

As of Q1 2025, Oberweis Asset Management held 220 positions worth $2.01B, down 5.4% from $2.12B the previous quarter. Its ten largest holdings account for 18% of the portfolio.

Oberweis Asset Management deployed $108M of net new capital in Q1 2025, opening 24 new positions and adding to 67 existing holdings. Its largest new stake was Life Time Group Holdings: 797,000 shares worth $24.1M.

By sector, the portfolio is most concentrated in Technology at 34% of assets, up from 32% a quarter earlier, followed by Healthcare and Industrials.

On the sell side, the largest reduction was LivaNova, an estimated $19.3M trimmed.

  • Oberweis Asset Management's largest Q1 2025 buy was Life Time Group Holdings: 797,000 shares worth $24.1M.
  • Oberweis Asset Management added most to Ambarella in Q1 2025, an estimated $26.4M increase.
  • Oberweis Asset Management's biggest Q1 2025 reduction was LivaNova, cutting an estimated $19.3M.
  • Oberweis Asset Management fully exited Abercrombie & Fitch in Q1 2025, selling an estimated $22M.
  • Oberweis Asset Management's ten largest holdings make up 18% of its $2.01B portfolio in Q1 2025.
  • Oberweis Asset Management opened 24 new positions and closed 28 in Q1 2025.
  • Oberweis Asset Management's portfolio value fell 5.4% quarter-over-quarter to $2.01B.

Based on Oberweis Asset Management's 13F filing for Q1 2025, filed 15 May 2025.