OBERWEIS ASSET MANAGEMENT INC/
Sector Allocation
- Technology49.8%$2.4B
- Healthcare15.9%$768.6M
- Industrials15.1%$732.7M
- Consumer Discretionary5.1%$248.5M
- Financials3.8%$182.9M
- Energy3.7%$179.2M
- Communication Services3.5%$167.6M
- Materials1.9%$93.4M
- Utilities0.9%$45.9M
- Consumer Staples0.2%$11.3M
AUM History
13fpro.ai/research/fund/oberweis-asset-management-inc-937886
Conviction and streaks
Stable · top 10 = 26.6%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
CRDO
$275.6MAAOI
$265.4MDOCN
$146.0MSIMO
$105.4MUCTT
$92.3MSN
$90.4MSITM
$89.1MBTSG
$82.7MHNGE
$71.0MRMBS
$70.0MMTSI
$68.2MLITE
$61.9MLSCC
$59.9MNVMI
$59.0MCRS
$57.5MFTDR
$55.8MECG
$54.5MVCYT
$51.5MPOWL
$51.4MLTH
$48.6M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/oberweis-asset-management-inc-937886
OBERWEIS ASSET MANAGEMENT INC/ 13F holdings — Q2 2026
$4.8B portfolio (+42.9% QoQ) · 176 holdings · Q2 2026 13F · top 10 are 27% of the stock portfolio
$275.6M
5.7% of stocks
-0.8%This quarter-41.8%Since filed7+ qtrsHeld$265.4M
5.5% of stocks
-24%This quarter-52.1%Since filed7+ qtrsHeld$146.0M
3.0% of stocks
+0.3%This quarter-23.4%Since filed7+ qtrsHeld$105.4M
2.2% of stocks
+12%This quarter-29.6%Since filed7+ qtrsHeld$92.3M
1.9% of stocks
+1%This quarter-45.0%Since filed7+ qtrsHeldAIQuality40.0#2,116Est. buyEstimated buy price is Pro: unlock with a free trialAdded 3 qtrs in a row$90.4M
1.9% of stocks
-1%This quarter+7.3%Since filed7+ qtrsHeld$89.1M
1.8% of stocks
+0.2%This quarter-34.7%Since filed5 qtrsHeld$82.7M
1.7% of stocks
+2%This quarter-4.6%Since filed5 qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 2 qtrs in a row$71.0M
1.5% of stocks
+84%This quarter+26.2%Since filed2 qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 2 qtrs in a row$70.0M
1.4% of stocks
+0.1%This quarter-10.4%Since filed7+ qtrsHeld
All holdings — OBERWEIS ASSET MANAGEMENT INC/ (Q2 2026)
176 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | MACOM Technology Solutions Holdings, Inc. | Technology | $68.2M | 1.4% | 179K | -17% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | Lumentum Holdings Inc. | Technology | $61.9M | 1.3% | 72K | -73% | 5 qtrsTrimmed 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | LATTICE SEMICONDUCTOR CORP | Technology | $59.9M | 1.2% | 392K | +5% | 4 qtrsAdded 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | NOVA LTD. | Technology | $59.0M | 1.2% | 109K | -21% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | CARPENTER TECHNOLOGY CORP | Materials | $57.5M | 1.2% | 93K | -1% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | Frontdoor, Inc. | Industrials | $55.8M | 1.1% | 719K | +0.2% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | Everus Construction Group, Inc. | Industrials | $54.5M | 1.1% | 328K | +0.5% | 5 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | VERACYTE, INC. | Healthcare | $51.5M | 1.1% | 878K | +5% | 7+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | POWELL INDUSTRIES INC | Technology | $51.4M | 1.1% | 180K | +426% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | Life Time Group Holdings, Inc. | Communication Services | $48.6M | 1.0% | 1.19M | +3% | 6 qtrsAdded 6 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | Rush Street Interactive, Inc. | Communication Services | $48.4M | 1.0% | 1.63M | +13% | 7+ qtrsAdded 5 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | MERCURY SYSTEMS INC | Technology | $48.0M | 1.0% | 393K | +0.4% | 6 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | Dutch Bros Inc. | Consumer Discretionary | $47.1M | 1.0% | 656K | +10% | 7+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | CLEAN HARBORS INC | Utilities | $45.9M | 0.9% | 153K | +6% | 7+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | Solaris Energy Infrastructure, Inc. | Energy | $45.4M | 0.9% | 565K | +6% | 6 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $DIOD | DIODES INC /DEL/ | Technology | $45.3M | 0.9% | 414K | +84% | |||
| 27 | $ACA | Arcosa, Inc. | Industrials | $42.9M | 0.9% | 295K | +10% | |||
| 28 | $BLBD | Blue Bird Corp | Industrials | $41.8M | 0.9% | 530K | +36% | |||
| 29 | $CAMT | CAMTEK LTD | Technology | $41.3M | 0.8% | 253K | +14% | |||
| 30 | $LIVN | LivaNova PLC | Healthcare | $41.1M | 0.8% | 500K | +55% | |||
| 31 | $AMSC | AMERICAN SUPERCONDUCTOR CORP /DE/ | Technology | $41.0M | 0.8% | 988K | +16% | |||
| 32 | $MXL | MAXLINEAR, INC | Technology | $40.9M | 0.8% | 320K | New | |||
| 33 | $GMED | GLOBUS MEDICAL INC | Healthcare | $40.5M | 0.8% | 512K | +31% | |||
| 34 | $NOVT | NOVANTA INC | Technology | $39.6M | 0.8% | 244K | New | |||
| 35 | $SKYW | SKYWEST INC | Industrials | $38.1M | 0.8% | 384K | -2% | |||
| 36 | $VIAV | VIAVI SOLUTIONS INC. | Technology | $37.9M | 0.8% | 794K | +34% | |||
| 37 | $MOG-A | MOOG INC. | Industrials | $36.8M | 0.8% | 87K | +93% | |||
| 38 | $LFUS | LITTELFUSE INC /DE | Technology | $36.3M | 0.8% | 80K | +11% | |||
| 39 | $ARQT | Arcutis Biotherapeutics, Inc. | Healthcare | $36.0M | 0.7% | 1.37M | +0.5% | |||
| 40 | $FCFS | FirstCash Holdings, Inc. | Consumer Discretionary | $35.9M | 0.7% | 166K | +0.3% | |||
| 41 | $BLLN | BillionToOne, Inc. | Healthcare | $35.9M | 0.7% | 299K | New | |||
| 42 | $DAN | DANA Inc | Industrials | $35.9M | 0.7% | 1.32M | -18% | |||
| 43 | $ESI | Element Solutions Inc | Materials | $35.3M | 0.7% | 740K | New | |||
| 44 | $AIR | AAR CORP | Industrials | $35.2M | 0.7% | 246K | +0.5% | |||
| 45 | $RELY | Remitly Global, Inc. | Industrials | $35.2M | 0.7% | 1.57M | +8% | |||
| 46 | $ICUI | ICU MEDICAL INC/DE | Healthcare | $34.8M | 0.7% | 237K | +16% | |||
| 47 | $FSS | FEDERAL SIGNAL CORP /DE/ | Industrials | $34.6M | 0.7% | 269K | +0.5% | |||
| 48 | $OUST | Ouster, Inc. | Industrials | $34.1M | 0.7% | 546K | New | |||
| 49 | $LEVI | LEVI STRAUSS & CO | Consumer Discretionary | $33.7M | 0.7% | 1.36M | +16% | |||
| 50 | $MMSI | MERIT MEDICAL SYSTEMS INC | Healthcare | $32.8M | 0.7% | 473K | +12% | |||
| 51 | $AIZ | ASSURANT, INC. | Financials | $32.8M | 0.7% | 122K | +19% | |||
| 52 | $WAY | Waystar Holding Corp. | Technology | $32.6M | 0.7% | 1.59M | +36% | |||
| 53 | $CECO | CECO ENVIRONMENTAL CORP | Industrials | $32.5M | 0.7% | 358K | +165% | |||
| 54 | $LQDA | Liquidia Corp | Healthcare | $32.4M | 0.7% | 406K | +9% | |||
| 55 | $EHC | Encompass Health Corp | Healthcare | $32.0M | 0.7% | 317K | +9% | |||
| 56 | $INDV | Indivior Pharmaceuticals, Inc. | Healthcare | $32.0M | 0.7% | 779K | +19% | |||
| 57 | $CGNX | COGNEX CORP | Technology | $31.0M | 0.6% | 428K | New | |||
| 58 | $GVA | GRANITE CONSTRUCTION INC | Industrials | $30.5M | 0.6% | 193K | New | |||
| 59 | $PDFS | PDF SOLUTIONS INC | Technology | $30.2M | 0.6% | 426K | New | |||
| 60 | $NVST | Envista Holdings Corp | Healthcare | $29.5M | 0.6% | 1.12M | +68% | |||
| 61 | $DAVE | Dave Inc./DE | Financials | $29.4M | 0.6% | 79K | +18% | |||
| 62 | $AMBA | AMBARELLA INC | Technology | $29.4M | 0.6% | 342K | +16% | |||
| 63 | $LASR | NLIGHT, INC. | Technology | $28.8M | 0.6% | 413K | +14% | |||
| 64 | $MYRG | MYR GROUP INC. | Energy | $27.1M | 0.6% | 54K | New | |||
| 65 | $ADPT | Adaptive Biotechnologies Corp | Healthcare | $27.0M | 0.6% | 1.26M | +56% | |||
| 66 | $DRS | Leonardo DRS, Inc. | Technology | $26.8M | 0.6% | 628K | +40% | |||
| 67 | $TPC | TUTOR PERINI CORP | Industrials | $26.8M | 0.6% | 323K | -18% | |||
| 68 | $KGS | Kodiak Gas Services, Inc. | Energy | $26.7M | 0.6% | 356K | New | |||
| 69 | $KNSA | Kiniksa Pharmaceuticals International, plc | Healthcare | $26.4M | 0.6% | 413K | +30% | |||
| 70 | $CHYM | Chime Financial, Inc. | Financials | $26.0M | 0.5% | 1.27M | +22% | |||
| 71 | $ALHC | Alignment Healthcare, Inc. | Healthcare | $25.9M | 0.5% | 1.09M | +13% | |||
| 72 | $HALO | HALOZYME THERAPEUTICS, INC. | Healthcare | $25.1M | 0.5% | 321K | +46% | |||
| 73 | $IRTC | iRhythm Holdings, Inc. | Healthcare | $24.0M | 0.5% | 202K | +29% | |||
| 74 | $ABCB | Ameris Bancorp | Financials | $23.9M | 0.5% | 265K | +0.4% | |||
| 75 | $ZWS | Zurn Elkay Water Solutions Corp | Industrials | $23.7M | 0.5% | 468K | +33% | |||
| 76 | $OSIS | OSI SYSTEMS INC | Technology | $23.4M | 0.5% | 107K | +0.5% | |||
| 77 | $OMDA | Omada Health, Inc. | Healthcare | $23.0M | 0.5% | 1.05M | New | |||
| 78 | $URBN | URBAN OUTFITTERS INC | Consumer Discretionary | $22.4M | 0.5% | 316K | +0.4% | |||
| 79 | $ANIP | ANI PHARMACEUTICALS INC | Healthcare | $22.0M | 0.5% | 265K | +20% | |||
| 80 | $EZPW | EZCORP INC | Consumer Discretionary | $21.8M | 0.5% | 632K | -1% | |||
| 81 | $CNR | Core Natural Resources, Inc. | Energy | $21.7M | 0.5% | 271K | +0.5% | |||
| 82 | $DCO | DUCOMMUN INC /DE/ | Industrials | $21.1M | 0.4% | 114K | +14% | |||
| 83 | $SKWD | Skyward Specialty Insurance Group, Inc. | Financials | $21.0M | 0.4% | 359K | +10% | |||
| 84 | $WLDN | Willdan Group, Inc. | Technology | $20.8M | 0.4% | 263K | New | |||
| 85 | $ATEN | A10 Networks, Inc. | Technology | $20.6M | 0.4% | 552K | +9% | |||
| 86 | $HQY | HEALTHEQUITY, INC. | Industrials | $20.6M | 0.4% | 228K | +37% | |||
| 87 | $SGHC | Super Group (SGHC) Ltd | Communication Services | $20.6M | 0.4% | 1.52M | +0.4% | |||
| 88 | $SPXC | SPX Technologies, Inc. | Industrials | $20.5M | 0.4% | 84K | +0.4% | |||
| 89 | $FORM | FORMFACTOR INC | Technology | $20.4M | 0.4% | 127K | New | |||
| 90 | $WTS | WATTS WATER TECHNOLOGIES INC | Industrials | $19.9M | 0.4% | 51K | New | |||
| 91 | $OPLN | OPENLANE, Inc. | Consumer Discretionary | $19.8M | 0.4% | 481K | New | |||
| 92 | $QTWO | Q2 Holdings, Inc. | Technology | $19.7M | 0.4% | 410K | +4% | |||
| 93 | $BOX | BOX INC | Technology | $19.7M | 0.4% | 743K | -4% | |||
| 94 | $VSEC | VSE CORP | Technology | $19.7M | 0.4% | 86K | +153% | |||
| 95 | $BHE | BENCHMARK ELECTRONICS INC | Technology | $19.6M | 0.4% | 198K | -2% | |||
| 96 | $NYT | NEW YORK TIMES CO | Communication Services | $19.4M | 0.4% | 277K | +31% | |||
| 97 | $AEIS | ADVANCED ENERGY INDUSTRIES INC | Technology | $18.4M | 0.4% | 49K | +0.5% | |||
| 98 | $ETON | Eton Pharmaceuticals, Inc. | Healthcare | $18.2M | 0.4% | 502K | +14% | |||
| 99 | $AXGN | Axogen, Inc. | Healthcare | $17.9M | 0.4% | 388K | +13% | |||
| 100 | $FN | Fabrinet | Technology | $17.1M | 0.3% | 30K | +0.4% | |||
| 101 | $AGX | ARGAN INC | Industrials | $16.9M | 0.3% | 21K | -37% | |||
| 102 | $VISN | Vistance Networks, Inc. | Technology | $16.6M | 0.3% | 1.30M | +19% | |||
| 103 | $TRS | TRIMAS CORP | Industrials | $16.3M | 0.3% | 362K | New | |||
| 104 | $ZETA | Zeta Global Holdings Corp. | Technology | $16.1M | 0.3% | 820K | -6% | |||
| 105 | $SBCF | SEACOAST BANKING CORP OF FLORIDA | Financials | $15.9M | 0.3% | 478K | +26% | |||
| 106 | $TILE | INTERFACE INC | Consumer Discretionary | $15.9M | 0.3% | 443K | -0.2% | |||
| 107 | $MD | Pediatrix Medical Group, Inc. | Healthcare | $15.8M | 0.3% | 623K | -11% | |||
| 108 | $PUMP | ProPetro Holding Corp. | Energy | $15.7M | 0.3% | 1.10M | +14% | |||
| 109 | $FSLY | Fastly, Inc. | Technology | $15.6M | 0.3% | 852K | -20% | |||
| 110 | $MTDR | Matador Resources Co | Energy | $15.6M | 0.3% | 314K | +0.5% | |||
| 111 | $OSW | ONESPAWORLD HOLDINGS Ltd | Communication Services | $15.6M | 0.3% | 553K | +14% | |||
| 112 | $LMAT | LEMAITRE VASCULAR INC | Healthcare | $15.2M | 0.3% | 159K | +7% | |||
| 113 | $CALX | CALIX, INC | Communication Services | $15.0M | 0.3% | 402K | +20% | |||
| 114 | $ARLO | Arlo Technologies, Inc. | Technology | $14.7M | 0.3% | 1.09M | +11% | |||
| 115 | $INOD | INNODATA INC | Technology | $14.3M | 0.3% | 189K | New | |||
| 116 | $MGNI | MAGNITE, INC. | Technology | $14.0M | 0.3% | 735K | +13% | |||
| 117 | $NIC | NICOLET BANKSHARES INC | Financials | $13.8M | 0.3% | 83K | +11% | |||
| 118 | $MHO | M/I HOMES, INC. | Industrials | $13.4M | 0.3% | 83K | +9% | |||
| 119 | $LOPE | Grand Canyon Education, Inc. | Consumer Discretionary | $13.2M | 0.3% | 93K | -21% | |||
| 120 | $IMAX | IMAX CORP | Technology | $13.0M | 0.3% | 327K | -43% | |||
| 121 | $PLUS | EPLUS INC | Technology | $12.6M | 0.3% | 151K | +10% | |||
| 122 | $KN | Knowles Corp | Technology | $12.2M | 0.3% | 293K | +25% | |||
| 123 | $IDCC | InterDigital, Inc. | Technology | $12.2M | 0.3% | 43K | +0.7% | |||
| 124 | $BOOT | Boot Barn Holdings, Inc. | Consumer Discretionary | $12.0M | 0.3% | 73K | +7% | |||
| 125 | $LIND | LINDBLAD EXPEDITIONS HOLDINGS, INC. | Consumer Discretionary | $11.9M | 0.3% | 421K | +11% | |||
| 126 | $MGY | Magnolia Oil & Gas Corp | Energy | $11.7M | 0.2% | 456K | +0.4% | |||
| 127 | $VVX | V2X, Inc. | Technology | $11.0M | 0.2% | 147K | New | |||
| 128 | $EVLV | Evolv Technologies Holdings, Inc. | Technology | $10.6M | 0.2% | 1.82M | +9% | |||
| 129 | $CRMD | CorMedix Inc. | Healthcare | $10.4M | 0.2% | 1.32M | +9% | |||
| 130 | $GRC | GORMAN RUPP CO | Industrials | $10.0M | 0.2% | 109K | +14% | |||
| 131 | $FBK | FB Financial Corp | Financials | $9.8M | 0.2% | 177K | +9% | |||
| 132 | $PAHC | PHIBRO ANIMAL HEALTH CORP | Healthcare | $9.8M | 0.2% | 311K | +12% | |||
| 133 | $NPKI | NPK International Inc. | Industrials | $9.3M | 0.2% | 588K | +13% | |||
| 134 | $APEI | AMERICAN PUBLIC EDUCATION INC | Consumer Discretionary | $9.3M | 0.2% | 172K | +32% | |||
| 135 | $CPRX | CATALYST PHARMACEUTICALS, INC. | Healthcare | $9.2M | 0.2% | 294K | -62% | |||
| 136 | $ADUS | Addus HomeCare Corp | Healthcare | $9.0M | 0.2% | 90K | +0.6% | |||
| 137 | $BW | Babcock & Wilcox Enterprises, Inc. | Industrials | $8.9M | 0.2% | 628K | +26% | |||
| 138 | $RDWR | RADWARE LTD | Industrials | $8.8M | 0.2% | 286K | -0.2% | |||
| 139 | $AMPX | Amprius Technologies, Inc. | Technology | $8.8M | 0.2% | 636K | +9% | |||
| 140 | $PDS | PRECISION DRILLING Corp | Energy | $8.5M | 0.2% | 111K | -2% | |||
| 141 | $KFRC | KFORCE INC | Industrials | $8.3M | 0.2% | 176K | New | |||
| 142 | $SRCE | 1ST SOURCE CORP | Financials | $7.7M | 0.2% | 94K | +9% | |||
| 143 | $CNXN | PC CONNECTION INC | Technology | $7.6M | 0.2% | 104K | +8% | |||
| 144 | $RDVT | Red Violet, Inc. | Technology | $7.6M | 0.2% | 119K | +14% | |||
| 145 | $BVS | Bioventus Inc. | Healthcare | $6.7M | 0.1% | 710K | +13% | |||
| 146 | $XPRO.R1575828 | EXPRO GROUP HOLDINGS N.V. | Energy | $6.7M | 0.1% | 452K | -0.6% | |||
| 147 | $CHEF | Chefs' Warehouse, Inc. | Consumer Staples | $5.5M | 0.1% | 58K | New | |||
| 148 | $COCO | Vita Coco Company, Inc. | Consumer Staples | $5.5M | 0.1% | 84K | -46% | |||
| 149 | $RCKY | ROCKY BRANDS, INC. | Consumer Discretionary | $4.9M | 0.1% | 118K | -0.3% | |||
| 150 | $SPY | SPDR S&P 500 ETF TRUST | — | $1.8M | 0.0% | 2,378 | +0.2% |
What changed in Q2 2026
Against the previous quarter's 13F: 22 new, 113 added to, 28 trimmed, 26 sold out. Share-count changes; largest moves by dollar size first.
New positions (22)
$MXLMAXLINEAR, INC$40.9M
first bought this quarter
$NOVTNOVANTA INC$39.6M
first bought this quarter
$BLLNBillionToOne, Inc.$35.9M
first bought this quarter
$ESIElement Solutions Inc$35.3M
first bought this quarter
$OUSTOuster, Inc.$34.1M
first bought this quarter
$CGNXCOGNEX CORP$31.0M
first bought this quarter
+16 more in the Excel export
Added to (113)
now $51.4M · held 7+ qtrs
now $71.0M · held 2 qtrs, 2 adds in a row
$DIODDIODES INC /DEL/+84%
now $45.3M · held 5 qtrs, 2 adds in a row
$CECOCECO ENVIRONMENTAL CORP+165%
now $32.5M · held 4 qtrs
$MOG-AMOOG INC.+93%
now $36.8M · held 2 qtrs, 2 adds in a row
$LIVNLivaNova PLC+55%
now $41.1M · held 4 qtrs, 4 adds in a row
+107 more in the Excel export
Trimmed (28)
now $61.9M · held 5 qtrs, 3 trims in a row
now $265.4M · held 7+ qtrs
now $59.0M · held 7+ qtrs
$CPRXCATALYST PHARMACEUTICALS, INC.-62%
now $9.2M · held 7+ qtrs
now $68.2M · held 7+ qtrs
$IMAXIMAX CORP-43%
now $13.0M · held 7+ qtrs, 2 trims in a row
+22 more in the Excel export
Holdings by quarter
Every 13F OBERWEIS ASSET MANAGEMENT INC/ has filed, 41 earlier quarters. Pick one to see what it held then.
Is it too late to follow OBERWEIS ASSET MANAGEMENT?
Q2 2026 13F filed with the SEC on Aug 14, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of OBERWEIS ASSET MANAGEMENT's top 20 holdings: 58/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)
Top 10 since filing
-29.3%
Value-weighted move of the 10 largest stock positions
Turnover
15%
Last quarter; 50% over the last 4
Top 10 weight
27%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
77%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q4 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
OBERWEIS ASSET MANAGEMENT INC/ disclosed 176 positions worth $4.8B in its Form 13F-HR for Q2 2026, led by $CRDO (Credo Technology Group Holding Ltd) at 5.7% of the equity portfolio, followed by $AAOI and $DOCN. During the quarter the fund opened 22 new positions and exited 26 — including a new stake in $MXL and a full exit from $FLS. The portfolio is most concentrated in Technology (49.8% of disclosed assets). All figures are sourced directly from OBERWEIS ASSET MANAGEMENT INC/’s Form 13F-HR filing with the SEC under CIK 937886.
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