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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
CRDO icon
1
Credo Technology Group
CRDO
$32.1B
$276M 5.69%
1,013,428
-8,540
-0.8% -$1.69M
AAOI icon
2
Applied Optoelectronics
AAOI
$8.96B
$265M 5.48%
1,791,127
-558,842
-24% -$90.8M
DOCN icon
3
DigitalOcean
DOCN
$13.2B
$146M 3.02%
930,005
+2,500
+0.3% +$338K
SIMO icon
4
Silicon Motion
SIMO
$8.69B
$105M 2.18%
316,350
+33,800
+12% +$7.83M
UCTT
5
Ultra Clean Holdings
UCTT
$3.28B
$92.3M 1.91%
647,276
+6,800
+1% +$598K
SN icon
6
SharkNinja
SN
$24.4B
$90.4M 1.87%
593,500
-6,470
-1% -$775K
SITM icon
7
SiTime
SITM
$18.4B
$89.1M 1.84%
119,501
+220
+0.2% +$139K
BTSG icon
8
BrightSpring Health Services
BTSG
$12B
$82.7M 1.71%
1,185,280
+26,310
+2% +$1.46M
HNGE
9
Hinge Health
HNGE
$7.45B
$71M 1.47%
855,476
+389,710
+84% +$21.2M
RMBS icon
10
Rambus
RMBS
$9.27B
$70M 1.45%
527,016
+700
+0.1% +$91K
MTSI icon
11
MACOM Technology Solutions
MTSI
$20.5B
$68.2M 1.41%
179,356
-36,530
-17% -$12.1M
LITE icon
12
Lumentum
LITE
$79B
$61.9M 1.28%
72,185
-194,037
-73% -$173M
LSCC icon
13
Lattice Semiconductor
LSCC
$16.5B
$59.9M 1.24%
391,816
+17,380
+5% +$2.24M
NVMI
14
Nova
NVMI
$11.8B
$59M 1.22%
108,675
-29,280
-21% -$15M
CRS icon
15
Carpenter Technology
CRS
$23.6B
$57.5M 1.19%
93,273
-1,160
-1% -$546K
FTDR icon
16
Frontdoor
FTDR
$5.69B
$55.8M 1.15%
719,060
+1,100
+0.2% +$70.4K
ECG
17
Everus Construction Group
ECG
$5.99B
$54.5M 1.13%
328,183
+1,650
+0.5% +$242K
VCYT icon
18
Veracyte
VCYT
$3.42B
$51.5M 1.07%
877,734
+37,900
+5% +$1.59M
POWL icon
19
Powell Industries
POWL
$6.6B
$51.4M 1.06%
179,521
+77,050
+75% +$20.9M
LTH icon
20
Life Time Group Holdings
LTH
$9.66B
$48.6M 1%
1,189,620
+29,120
+3% +$924K
RSI icon
21
Rush Street Interactive
RSI
$3.08B
$48.4M 1%
1,627,930
+193,370
+13% +$5.1M
MRCY icon
22
Mercury Systems
MRCY
$4.96B
$48M 0.99%
392,723
+1,700
+0.4% +$162K
BROS icon
23
Dutch Bros
BROS
$6.43B
$47.1M 0.97%
656,093
+57,600
+10% +$3.3M
CLH icon
24
Clean Harbors
CLH
$16.7B
$45.9M 0.95%
153,475
+9,120
+6% +$2.69M
SEI
25
Solaris Energy Infrastructure
SEI
$3.62B
$45.4M 0.94%
564,581
+32,692
+6% +$2.34M
1
2 3 4 5

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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.