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OAM

Oberweis Asset Management Portfolio holdings

AUM $4.84B
1-Year Est. Return 160.95%
This Fund
S&P 500
This Quarter Est. Return
+60.36%
1 Year Est. Return
+160.95%
3 Year Est. Return
+485.02%
5 Year Est. Return
+872.24%
10 Year Est. Return
+17,234.36%
AUM
$4.84B
AUM Growth
+$1.45B
Cap. Flow
+$109M
Cap. Flow %
2.26%
Top 10 Hldgs %
26.61%
Holding
202
New
22
Increased
113
Reduced
28
Closed
26

Top Buys

Rank Stock Value
1
NOVT icon
Novanta
NOVT
+$35.3M
2
ESI icon
Element Solutions
ESI
+$30.7M
3
BLLN
BillionToOne Inc
BLLN
+$27.3M
4
GVA icon
Granite Construction
GVA
+$26.2M
5
CGNX icon
Cognex
CGNX
+$26M

Top Sells

Rank Stock Value
1
LITE icon
Lumentum
LITE
+$173M
2
AAOI icon
Applied Optoelectronics
AAOI
+$90.8M
3
FLS icon
Flowserve
FLS
+$32M
4
PRIM icon
Primoris Services
PRIM
+$23.8M
5
G icon
Genpact
G
+$22.6M

Sector Composition

Rank Sector Weight
1 Technology 42.62%
2 Industrials 18.89%
3 Healthcare 18.45%
4 Consumer Discretionary 10.61%
5 Financials 3.82%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
DIOD icon
26
Diodes
DIOD
$4.23B
$45.3M 0.94%
413,750
+189,450
+84% +$19.2M
ACA icon
27
Arcosa
ACA
$7.14B
$42.9M 0.89%
295,450
+27,750
+10% +$3.45M
BLBD icon
28
Blue Bird Corp
BLBD
$2.02B
$41.8M 0.86%
529,838
+140,600
+36% +$9.54M
CAMT icon
29
Camtek
CAMT
$6.8B
$41.3M 0.85%
253,380
+30,600
+14% +$5.42M
LIVN icon
30
LivaNova
LIVN
$4.51B
$41.1M 0.85%
500,150
+178,250
+55% +$12.6M
AMSC icon
31
American Superconductor
AMSC
$1.43B
$41M 0.85%
987,500
+137,600
+16% +$6.22M
MXL icon
32
MaxLinear
MXL
$5.69B
$40.9M 0.85%
+319,500
New +$22.6M
GMED icon
33
Globus Medical
GMED
$10.5B
$40.5M 0.84%
512,100
+119,900
+31% +$10.2M
NOVT icon
34
Novanta
NOVT
$5.61B
$39.6M 0.82%
+244,260
New +$35.3M
SKYW icon
35
Skywest
SKYW
$3.85B
$38.1M 0.79%
383,799
-8,700
-2% -$774K
VIAV icon
36
Viavi Solutions
VIAV
$8.6B
$37.9M 0.78%
793,600
+200,400
+34% +$9.6M
MOG.A icon
37
Moog Inc Class A
MOG.A
$11.8B
$36.8M 0.76%
86,735
+41,825
+93% +$14.3M
LFUS icon
38
Littelfuse
LFUS
$10.6B
$36.3M 0.75%
79,800
+8,000
+11% +$3.46M
ARQT icon
39
Arcutis Biotherapeutics
ARQT
$3B
$36M 0.74%
1,372,941
+7,000
+0.5% +$163K
FCFS icon
40
FirstCash
FCFS
$9.79B
$35.9M 0.74%
166,105
+440
+0.3% +$95.6K
BLLN
41
BillionToOne Inc
BLLN
$4.69B
$35.9M 0.74%
+299,030
New +$27.3M
DAN icon
42
Dana Inc
DAN
$3.45B
$35.9M 0.74%
1,318,300
-293,200
-18% -$10M
ESI icon
43
Element Solutions
ESI
$8.78B
$35.3M 0.73%
+740,100
New +$30.7M
AIR icon
44
AAR Corp
AIR
$5.09B
$35.2M 0.73%
246,325
+1,200
+0.5% +$142K
RELY icon
45
Remitly
RELY
$5.54B
$35.2M 0.73%
1,570,400
+116,100
+8% +$2.38M
ICUI icon
46
ICU Medical
ICUI
$4.19B
$34.8M 0.72%
237,050
+33,340
+16% +$4.35M
FSS icon
47
Federal Signal
FSS
$7.28B
$34.6M 0.71%
269,084
+1,450
+0.5% +$166K
OUST icon
48
Ouster
OUST
$2.63B
$34.1M 0.71%
+545,810
New +$18.4M
LEVI icon
49
Levi Strauss
LEVI
$8.1B
$33.7M 0.7%
1,358,100
+190,800
+16% +$4.3M
MMSI icon
50
Merit Medical Systems
MMSI
$5.35B
$32.8M 0.68%
473,409
+49,200
+12% +$3.25M
1
2
3 4 5

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MP
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FAM
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SHCM
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BCI
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Oberweis Asset Management's Q2 2026 Portfolio in Review

As of Q2 2026, Oberweis Asset Management held 202 positions worth $4.84B, up 43% from $3.39B the previous quarter. Its ten largest holdings account for 27% of the portfolio.

Oberweis Asset Management's Q2 2026 filing shows 22 new, 113 increased, 28 reduced and 26 closed positions. Its largest new stake was Novanta: 244,260 shares worth $39.6M. The largest sale was Lumentum, an estimated $173M.

By sector, the portfolio is most concentrated in Technology at 43% of assets, up from 40% a quarter earlier, followed by Industrials and Healthcare.

  • Oberweis Asset Management's largest Q2 2026 buy was Novanta: 244,260 shares worth $39.6M.
  • Oberweis Asset Management added most to Hinge Health in Q2 2026, an estimated $21.2M increase.
  • Oberweis Asset Management's biggest Q2 2026 reduction was Lumentum, cutting an estimated $173M.
  • Oberweis Asset Management fully exited Flowserve in Q2 2026, selling an estimated $32M.
  • Oberweis Asset Management's ten largest holdings make up 27% of its $4.84B portfolio in Q2 2026.
  • Oberweis Asset Management opened 22 new positions and closed 26 in Q2 2026.
  • Oberweis Asset Management's portfolio value rose 43% quarter-over-quarter to $4.84B.

Based on Oberweis Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.