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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
+26.28%
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
$2.3B
AUM Growth
+$292M
Cap. Flow
-$53.2M
Cap. Flow %
-2.32%
Top 10 Hldgs %
19.66%
Holding
212
New
20
Increased
88
Reduced
33
Closed
27

Top Buys

Rank Stock Value
1
LITE icon
Lumentum
LITE
+$19.1M
2
BTSG icon
BrightSpring Health Services
BTSG
+$16.2M
3
QRVO icon
Qorvo
QRVO
+$14.5M
4
BMI icon
Badger Meter
BMI
+$13.6M
5
SITM icon
SiTime
SITM
+$13.3M

Top Sells

Rank Stock Value
1
DOCS icon
Doximity
DOCS
+$33.9M
2
CRDO icon
Credo Technology Group
CRDO
+$29.2M
3
DORM icon
Dorman Products
DORM
+$25.1M
4
DECK icon
Deckers Outdoor
DECK
+$19M
5
CCS icon
Century Communities
CCS
+$16.6M

Sector Composition

Rank Sector Weight
1 Technology 38.26%
2 Industrials 17.9%
3 Healthcare 17.2%
4 Consumer Discretionary 11.36%
5 Financials 5.44%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CRDO icon
1
Credo Technology Group
CRDO
$44.1B
$70.2M 3.06%
758,568
-501,347
-40% -$29.2M
ADMA icon
2
ADMA Biologics
ADMA
$1.94B
$57.1M 2.48%
3,135,890
-290,370
-8% -$5.92M
AAOI icon
3
Applied Optoelectronics
AAOI
$8.99B
$48.5M 2.11%
1,888,041
+503,200
+36% +$8.14M
SN icon
4
SharkNinja
SN
$20.6B
$48M 2.09%
484,560
-15,600
-3% -$1.35M
EHC icon
5
Encompass Health
EHC
$11B
$44M 1.92%
359,025
-11,695
-3% -$1.34M
SRAD icon
6
Sportradar
SRAD
$4.22B
$38.7M 1.68%
1,377,400
+232,700
+20% +$5.52M
AMBA icon
7
Ambarella
AMBA
$3.09B
$37.9M 1.65%
573,360
+4,535
+0.8% +$240K
ITRI icon
8
Itron
ITRI
$3.72B
$37.4M 1.63%
284,500
+11,990
+4% +$1.36M
FTDR icon
9
Frontdoor
FTDR
$4.95B
$36M 1.57%
610,860
+11,400
+2% +$572K
SKYW icon
10
Skywest
SKYW
$3.82B
$34.1M 1.48%
331,000
+11,850
+4% +$1.13M
RMBS icon
11
Rambus
RMBS
$11.2B
$32.4M 1.41%
505,780
-1,570
-0.3% -$84.1K
NVMI
12
Nova
NVMI
$14.5B
$31.1M 1.35%
113,100
+2,100
+2% +$427K
FRSH icon
13
Freshworks
FRSH
$2.7B
$30.6M 1.33%
2,050,820
+322,300
+19% +$4.64M
WAY
14
Waystar Holding Corp
WAY
$4.14B
$30.4M 1.32%
744,980
+31,940
+4% +$1.23M
FLS icon
15
Flowserve
FLS
$9.16B
$27.3M 1.19%
522,172
+8,988
+2% +$423K
QTWO icon
16
Q2 Holdings
QTWO
$3.31B
$27.3M 1.19%
292,010
+49,020
+20% +$4.14M
CLH icon
17
Clean Harbors
CLH
$16.2B
$27.1M 1.18%
117,300
+6,980
+6% +$1.53M
LRN icon
18
Stride
LRN
$3.66B
$26.4M 1.15%
181,800
-25,500
-12% -$3.69M
MTSI icon
19
MACOM Technology Solutions
MTSI
$21.6B
$25.7M 1.12%
179,520
-53,000
-23% -$6.19M
LITE icon
20
Lumentum
LITE
$64.9B
$25.6M 1.11%
+269,050
New +$19.1M
FN icon
21
Fabrinet
FN
$18.6B
$25.4M 1.11%
86,200
+1,600
+2% +$357K
LTH icon
22
Life Time Group Holdings
LTH
$9.33B
$24.6M 1.07%
812,300
+15,300
+2% +$454K
AMSC icon
23
American Superconductor
AMSC
$1.6B
$24.5M 1.07%
668,200
– –
OSIS icon
24
OSI Systems
OSIS
$3.53B
$24.5M 1.07%
109,000
+8,600
+9% +$1.84M
COOP
25
DELISTED
Mr. Cooper
COOP
$23.2M 1.01%
155,800
+8,700
+6% +$1.12M
1
2 3 4 5

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Oberweis Asset Management's Q2 2025 Portfolio in Review

As of Q2 2025, Oberweis Asset Management held 212 positions worth $2.3B, up 15% from $2.01B the previous quarter. Its ten largest holdings account for 20% of the portfolio.

Oberweis Asset Management's Q2 2025 filing shows 20 new, 88 increased, 33 reduced and 27 closed positions. Its largest new stake was Lumentum: 269,050 shares worth $25.6M. The largest sale was Doximity, an estimated $33.9M.

By sector, the portfolio is most concentrated in Technology at 38% of assets, up from 34% a quarter earlier, followed by Industrials and Healthcare.

  • Oberweis Asset Management's largest Q2 2025 buy was Lumentum: 269,050 shares worth $25.6M.
  • Oberweis Asset Management added most to Applied Optoelectronics in Q2 2025, an estimated $8.14M increase.
  • Oberweis Asset Management's biggest Q2 2025 reduction was Credo Technology Group, cutting an estimated $29.2M.
  • Oberweis Asset Management fully exited Doximity in Q2 2025, selling an estimated $33.9M.
  • Oberweis Asset Management's ten largest holdings make up 20% of its $2.3B portfolio in Q2 2025.
  • Oberweis Asset Management opened 20 new positions and closed 27 in Q2 2025.
  • Oberweis Asset Management's portfolio value rose 15% quarter-over-quarter to $2.3B.

Based on Oberweis Asset Management's 13F filing for Q2 2025, filed 14 Aug 2025.