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OBERWEIS ASSET MANAGEMENT INC

Q1 2026 · Filed 2026-05-15
Market Value
$3.4B
+25.4%
Holdings
193
-2
New Purchases
22
Added To
127
Closed
19
Reduced
18
Top 10 Concentration
26.3%
Turnover
21.2%

Top Buys (by % of Portfolio)

SymbolCur %Prior %Chg %Value
AAOI 5.92% 2.66% +3.26% $199M
LITE 5.57% 3.87% +1.70% $187M
DOCN 2.37% 1.40% +0.97% $80M
DAN 1.62% 0.71% +0.91% $54M
FSLY 0.93% 0.26% +0.66% $31M
DRS 0.60% 0.00% +0.60% $20M
INDV 0.59% 0.00% +0.59% $20M
UCTT 1.19% 0.59% +0.59% $40M
CHYM 0.58% 0.00% +0.58% $19M
HNGE 0.53% 0.00% +0.53% $18M
NVST 0.50% 0.00% +0.50% $17M
SHAK 0.49% 0.00% +0.49% $17M
ARLO 0.42% 0.00% +0.42% $14M
NVMI 1.78% 1.39% +0.39% $60M
MOG-A 0.39% 0.00% +0.39% $13M

Top Sells (by % of Portfolio)

SymbolCur %Prior %Chg %Value
AMBA 0.45% 1.64% -1.18% $15M
FRSH 0.01% 0.94% -0.93% $464K
CRDO 2.86% 3.63% -0.77% $96M
CARG 0.00% 0.74% -0.74% $0
SXT 0.00% 0.66% -0.66% $0
GENI 0.00% 0.65% -0.65% $0
ACIW 0.00% 0.59% -0.59% $0
EHC 0.83% 1.42% -0.59% $28M
CVLT 0.00% 0.52% -0.52% $0
WGS 0.50% 0.97% -0.47% $17M
TPB 0.00% 0.42% -0.42% $0
WK 0.00% 0.41% -0.41% $0
PEGA 0.58% 0.95% -0.37% $19M
GDOT 0.00% 0.37% -0.37% $0
SKYW 1.07% 1.43% -0.36% $36M

Sector Allocation Over Time

Market Cap Concentration

TierHoldingsValueWeight
Mega Cap 13 $7M 0.2%
Large Cap 36 $1.2B 36.7%
Mid Cap 98 $1.8B 53.2%
Small Cap 44 $323M 9.6%
Micro Cap 2 $9M 0.3%

Portfolio Analytics

Avg Market Cap
$81.5B
Median Market Cap
$4.1B
Avg P/E
41.4
Median P/E
28.5
Avg Dividend Yield
0.01%
Avg Beta
1.19
# Stocks
191
# ETFs / Funds
2

Top Holdings (193 total)

# Symbol % Port Shares Value Avg Price Q/Q Value Chg Share Chg Chg % Status
1 AAOI 5.92% 2,349,969 $199M $84.59 $128M +310,328 +15.2%
2 LITE 5.57% 266,222 $187M $702.76 $84M -14,708 -5.2%
3 CRDO 2.86% 1,021,968 $96M $93.87 -$1M +346,580 +51.3%
4 DOCN 2.37% 927,505 $80M $85.78 $42M +148,675 +19.1%
5 SN 1.89% 599,970 $64M $105.90 $5M +73,660 +14.0%
6 NVMI 1.78% 137,955 $60M $434.28 $23M +24,670 +21.8%
7 DAN 1.62% 1,611,500 $54M $33.65 $35M +815,000 +102.3%
8 BTSG 1.47% 1,158,970 $49M $42.61 $15M +250,970 +27.6%
9 MTSI 1.43% 215,886 $48M $222.07 $17M +36,926 +20.6%
10 RMBS 1.35% 526,316 $45M $86.03 $3M +64,216 +13.9%
11 CLH 1.23% 144,355 $41M $286.73 $14M +27,485 +23.5%
12 SITM 1.23% 119,281 $41M $345.35 $4M +12,885 +12.1%
13 UCTT 1.19% 640,476 $40M $62.18 $24M +11,976 +1.9%
14 ECG 1.15% 326,533 $39M $118.06 $16M +66,733 +25.7%
15 FTDR 1.13% 717,960 $38M $52.86 $3M +107,100 +17.5%
16 CRS 1.11% 94,433 $37M $394.15 $11M +11,822 +14.3%
17 SKYW 1.07% 392,499 $36M $91.83 -$2M +10,279 +2.7%
18 LSCC 1.03% 374,436 $35M $92.76 $12M +59,800 +19.0%
19 GMED 1.01% 392,200 $34M $86.16 $10M +122,200 +45.3%
20 CAMT 1.01% 222,780 $34M $151.61 $10M +3,900 +1.8%
21 ARQT 0.96% 1,365,941 $32M $23.56 $9M +557,541 +69.0%
22 FLS 0.95% 434,681 $32M $73.51 $4M +24,740 +6.0%
23 SIMO 0.94% 282,550 $32M $112.29 $10M +46,250 +19.6%
24 LTH 0.93% 1,160,500 $31M $26.94 $3M +101,200 +9.6%
25 RSI 0.93% 1,434,560 $31M $21.75 $4M +22,850 +1.6%
26 FCFS 0.93% 165,665 $31M $188.00 $10M +34,365 +26.2%
27 FSLY 0.93% 1,071,022 $31M $29.06 $24M +381,222 +55.3%
28 TPC 0.91% 393,900 $30M $77.19 $4M +6,700 +1.7%
29 BROS 0.90% 598,493 $30M $50.66 $6M +193,993 +48.0%
30 SEI 0.90% 531,889 $30M $56.51 $13M +164,989 +45.0%
31 MMSI 0.87% 424,209 $29M $68.93 $6M +155,449 +57.8%
32 FSS 0.86% 267,634 $29M $108.14 $11M +101,134 +60.7%
33 AMSC 0.86% 849,900 $29M $33.85 $5M +14,000 +1.7%
34 MRCY 0.85% 391,023 $29M $72.91 -$2M -23,017 -5.6%
35 ACA 0.85% 267,700 $28M $106.14 $5M +46,100 +20.8%
36 OSIS 0.84% 106,593 $28M $265.51 $2M +5,193 +5.1%
37 CNR 0.84% 269,800 $28M $104.73 $12M +91,400 +51.2%
38 WAY 0.84% 1,167,474 $28M $24.11 $618K +326,874 +38.9%
39 EHC 0.83% 289,485 $28M $96.73 -$10M -69,486 -19.4%
40 VCYT 0.81% 839,834 $27M $32.21 -$4M +113,094 +15.6%
41 AIR 0.80% 245,125 $27M $109.46 $4M -27,575 -10.1%
42 ICUI 0.78% 203,710 $26M $129.15 $2M +35,670 +21.2%
43 LFUS 0.73% 71,800 $24M $339.35 $9M +9,500 +15.2%
44 PRIM 0.71% 166,100 $24M $143.04 $3M +2,800 +1.7%
45 RELY 0.68% 1,454,300 $23M $15.67 $9M +451,500 +45.0%
46 G 0.67% 606,832 $23M $37.25 -$2M +85,230 +16.3%
47 AIZ 0.66% 102,300 $22M $217.81 $2M +19,300 +23.2%
48 BLBD 0.66% 389,238 $22M $56.79 $4M +6,600 +1.7%
49 IMAX 0.65% 577,139 $22M $38.01 -$2M -75,161 -11.5%
50 LEVI 0.64% 1,167,300 $22M $18.49 $970K +173,400 +17.4%
51 ATEC 0.62% 1,908,293 $21M $10.88 -$286K +907,893 +90.8%
52 LASR 0.62% 363,010 $21M $57.02 $7M +6,610 +1.9%
53 EYE 0.62% 797,780 $21M $25.90 $407K +13,280 +1.7%
54 ABCB 0.61% 263,500 $21M $77.99 $9M +107,100 +68.5%
55 LIVN 0.61% 321,900 $20M $63.56 $7M +109,600 +51.6%
56 DRS 0.60% 449,500 $20M $44.52 +449,500 NEW
57 URBN 0.59% 314,792 $20M $63.35 -$2M +28,392 +9.9%
58 INDV 0.59% 653,413 $20M $30.48 +653,413 NEW
59 LOPE 0.59% 116,900 $20M $170.03 $3M +17,100 +17.1%
60 COMM 0.59% 1,092,012 $20M $18.20 $2M +131,100 +13.6%
61 MTDR 0.59% 312,700 $20M $63.18 $9M +58,800 +23.2%
62 VIAV 0.59% 593,200 $20M $33.28 $11M +85,100 +16.8%
63 CHYM 0.58% 1,035,530 $19M $18.73 +1,035,530 NEW
64 PEGA 0.58% 455,290 $19M $42.56 -$6M +30,450 +7.2%
65 CPRX 0.58% 780,570 $19M $24.76 $6M +193,600 +33.0%
66 QTWO 0.56% 394,629 $19M $47.30 -$6M +57,769 +17.1%
67 POWL 0.55% 34,157 $18M $541.08 $3M -14,543 -29.9%
68 IRTC 0.55% 156,004 $18M $118.02 -$3M +36,304 +30.3%
69 BOX 0.54% 771,520 $18M $23.64 -$1M +119,200 +18.3%
70 AGX 0.54% 33,322 $18M $544.64 $8M +351 +1.1%
71 HNGE 0.53% 465,766 $18M $38.56 +465,766 NEW
72 NYT 0.53% 211,650 $18M $83.73 -$3M -91,050 -30.1%
73 AEO 0.52% 1,044,900 $17M $16.70 -$4M +230,400 +28.3%
74 ALHC 0.51% 966,600 $17M $17.62 $2M +219,100 +29.3%
75 ANIP 0.51% 221,386 $17M $76.90 $2M +32,556 +17.2%
76 NVST 0.50% 665,400 $17M $25.37 +665,400 NEW
77 WGS 0.50% 261,370 $17M $64.22 -$9M +62,600 +31.5%
78 SPXC 0.50% 83,441 $17M $199.94 $1M +6,541 +8.5%
79 SHAK 0.49% 187,570 $17M $88.47 +187,570 NEW
80 CALX 0.49% 335,030 $16M $48.99 $3M +90,430 +37.0%
81 SGHC 0.49% 1,514,400 $16M $10.80 $1M +245,900 +19.4%
82 EZPW 0.48% 639,400 $16M $25.38 $4M +11,500 +1.8%
83 LMAT 0.48% 148,601 $16M $109.17 $7M +32,300 +27.8%
84 AEIS 0.47% 49,183 $16M $322.71 $8M +9,483 +23.9%
85 ZWS 0.47% 352,183 $16M $44.84 $3M +86,183 +32.4%
86 FN 0.47% 30,263 $16M $521.52 $4M +5,063 +20.1%
87 PAHC 0.46% 277,100 $15M $55.31 $7M +67,300 +32.1%
88 DIOD 0.46% 224,300 $15M $68.26 $8M +72,400 +47.7%
89 AMBA 0.45% 295,185 $15M $51.48 -$29M -322,675 -52.2%
90 MD 0.45% 701,087 $15M $21.39 $3M +141,100 +25.2%
91 MGY 0.43% 454,466 $14M $31.57 $6M +78,166 +20.8%
92 SKWD 0.43% 327,100 $14M $43.68 $2M +89,600 +37.7%
93 HALO 0.42% 219,930 $14M $64.63 $6M +102,350 +87.0%
94 LQDA 0.42% 372,100 $14M $37.74 $3M +42,900 +13.0%
95 ARLO 0.42% 982,300 $14M $14.23 +982,300 NEW
96 HQY 0.41% 166,641 $14M $83.57 $956K +25,061 +17.7%
97 PUMP 0.41% 965,500 $14M $14.41 $5M +17,600 +1.9%
98 ZETA 0.41% 871,060 $14M $15.92 -$2M +104,040 +13.6%
99 MIR 0.41% 744,267 $14M $18.59 -$399K +136,467 +22.4%
100 MOG-A 0.39% 44,910 $13M $292.64 +44,910 NEW

New Positions

SymbolValue% Port
DRS $20M 0.60%
INDV $20M 0.59%
CHYM $19M 0.58%
HNGE $18M 0.53%
NVST $17M 0.50%
SHAK $17M 0.49%
ARLO $14M 0.42%
MOG-A $13M 0.39%
ATEN $12M 0.35%
SBCF $11M 0.34%
AMPX $10M 0.29%
THR $8M 0.23%
APEI $7M 0.22%
BW $7M 0.22%
KN $6M 0.18%

Sold Out Positions

SymbolValue% Port
LYTS —%
GDOT —%
BBW —%
WK —%
GENI —%
SXT —%
FRME —%
CVLT —%
MBUU —%
TPB —%
BLZE —%
ACIW —%
CARG —%
MTRX —%
SHOP —%
View SEC EDGAR Filings for OBERWEIS ASSET MANAGEMENT INC →

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms