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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
AIZ icon
51
Assurant
AIZ
$14.1B
$32.8M 0.68%
122,100
+19,800
+19% +$4.82M
WAY
52
Waystar Holding Corp
WAY
$4.81B
$32.6M 0.67%
1,589,364
+421,890
+36% +$8.87M
CECO icon
53
Ceco Environmental
CECO
$4.34B
$32.5M 0.67%
358,072
+223,040
+165% +$17.6M
LQDA icon
54
Liquidia Corp
LQDA
$6.15B
$32.4M 0.67%
406,400
+34,300
+9% +$1.84M
EHC icon
55
Encompass Health
EHC
$12B
$32M 0.66%
316,886
+27,401
+9% +$2.84M
INDV icon
56
Indivior Pharmaceuticals
INDV
$4.12B
$32M 0.66%
779,188
+125,775
+19% +$4.56M
CGNX icon
57
Cognex
CGNX
$10.5B
$31M 0.64%
+427,820
New +$26M
GVA icon
58
Granite Construction
GVA
$5.3B
$30.5M 0.63%
+193,090
New +$26.2M
PDFS icon
59
PDF Solutions
PDFS
$1.93B
$30.2M 0.62%
+426,400
New +$21.1M
NVST icon
60
Envista
NVST
$4.38B
$29.5M 0.61%
1,120,782
+455,382
+68% +$11.5M
DAVE icon
61
Dave Inc
DAVE
$4.86B
$29.4M 0.61%
78,902
+12,200
+18% +$3.17M
AMBA icon
62
Ambarella
AMBA
$2.78B
$29.4M 0.61%
342,254
+47,069
+16% +$3.24M
LASR icon
63
nLIGHT
LASR
$2.31B
$28.8M 0.59%
413,310
+50,300
+14% +$3.51M
MYRG icon
64
MYR Group
MYRG
$4.46B
$27.1M 0.56%
+54,190
New +$22.3M
ADPT icon
65
Adaptive Biotechnologies
ADPT
$3.87B
$27M 0.56%
1,258,751
+451,800
+56% +$6.92M
DRS icon
66
Leonardo DRS
DRS
$9.77B
$26.8M 0.55%
628,486
+178,986
+40% +$7.95M
TPC
67
Tutor Perini Cor
TPC
$4.64B
$26.8M 0.55%
323,200
-70,700
-18% -$5.69M
KGS icon
68
Kodiak Gas Services
KGS
$6.33B
$26.7M 0.55%
+355,870
New +$24.2M
KNSA icon
69
Kiniksa Pharmaceuticals
KNSA
$6.08B
$26.4M 0.55%
413,034
+94,400
+30% +$4.9M
CHYM
70
Chime Financial
CHYM
$12.8B
$26M 0.54%
1,268,330
+232,800
+22% +$4.52M
ALHC icon
71
Alignment Healthcare
ALHC
$2.81B
$25.9M 0.54%
1,089,600
+123,000
+13% +$2.36M
HALO icon
72
Halozyme
HALO
$12.5B
$25.1M 0.52%
321,030
+101,100
+46% +$6.89M
IRTC icon
73
iRhythm Holdings
IRTC
$4.06B
$24M 0.5%
202,004
+46,000
+29% +$5.35M
ABCB icon
74
Ameris Bancorp
ABCB
$5.77B
$23.9M 0.49%
264,600
+1,100
+0.4% +$93.5K
ZWS icon
75
Zurn Elkay Water Solutions
ZWS
$7.9B
$23.7M 0.49%
468,453
+116,270
+33% +$5.69M
1 2
3
4 5

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SHCM
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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.