Gagnon Securities
New York, NYfiles as GAGNON SECURITIES LLC
$519m in 83 US stocks at the end of 30 June 2026. The top 10 are 47.7% of the money. It changed about 17.5% of the portfolio this quarter.
Value
$519m
Stocks
83
Top 10 share
47.7%
Turnover
17.5%
What changed this quarter
New
Bought for the first time this quarter.
- 02.3% of the fund
- Warby ParkerWRBY<0.1% of the fund
- VericelVCEL<0.1% of the fund
- Beyond Meat<0.1% of the fund
Added
Bought more of a stock they already held.
- GeneDx HoldingsWGS6.9% of the fund+73%
- QuidelOrthoQDEL3.5% of the fund+155%
- CarMaxKMX3.3% of the fund+5%
- Five9FIVN3.0% of the fund+16%
- Hinge HealthHNGE2.9% of the fund+47%
- CarGurusCARG2.4% of the fund+35%
- BlacklineBL2.0% of the fund+27%
- Proto LabsPRLB1.8% of the fund+5%
- VertexVERX1.7% of the fund+63%
- DoubleVerify HoldingsDV1.1% of the fund+7%
- Weave CommunicationsWEAV0.2% of the fund+359%
- Cnfinance HldgsCNF0.2% of the fund+6%
- Bio-TechneTECH0.2% of the fund+24%
- Commvault SystemsCVLT0.1% of the fund+11%
- ShopifySHOP<0.1% of the fund+2%
- Akamai TechnologiesAKAM<0.1% of the fund+9%
- MicrosoftMSFT<0.1% of the fund+2%
Cut
Sold some of their stake.
- Ensign GroupENSG5.4% of the fund-3%
- Generac HoldingsGNRC4.1% of the fund-2%
- FreshworksFRSH3.1% of the fund-10%
- Treace Medical ConceptsTMCI2.3% of the fund-42%
- Intuitive SurgicalISRG2.2% of the fund-8%
- Aspen AerogelsASPN1.9% of the fund-18%
- MarinemaxHZO1.5% of the fund-4%
- Orasure TechnologiesOSUR1.4% of the fund-7%
- CareTrust REITCTRE1.0% of the fund-2%
- Microchip TechnologyMCHP0.5% of the fund-2%
- Global Net LeaseGNL0.3% of the fund-6%
- nCinoNCNO0.2% of the fund-5%
- Marvell TechnologyMRVL0.2% of the fund-57%
- Micron TechnologyMU0.2% of the fund-37%
- NvidiaNVDA0.1% of the fund-4%
- Onto InnovationONTO0.1% of the fund-24%
- AT&TT0.1% of the fund-4%
- Himax TechnologiesHIMX0.1% of the fund-12%
- PfizerPFE0.1% of the fund-47%
- MACOM Technology Solutions HoldingsMTSI<0.1% of the fund-65%
- Viavi SolutionsVIAV<0.1% of the fund-31%
- Rein TherapeuticsRNTX<0.1% of the fund-4%
- RambusRMBS<0.1% of the fund-35%
- Actinium PharmaceuticalsATNM<0.1% of the fund-10%
- Patterson UTI EnergyPTEN<0.1% of the fund-94%
Sold out
Sold their entire stake.
- Navigator HoldingsNVGS-100%
- Ishares TRSGOV-100%
- Alpha & Omega SemiconductorAOSL-100%
- GrandstandGRSD-100%
- EOG ResourcesEOG-100%
- Savers Value VillageSVV-100%
Holdings
- 0
- Share
- 2.3%
- Value
- $12m
- Shares
- 765,179
New
- Whitecap RESWCPRF
- Share
- 0.9%
- Value
- $5m
- Shares
- 435,100
Held
- Cnfinance HldgsCNF
- Share
- 0.2%
- Value
- $920,596
- Shares
- 332,345
+6%
- Nintendo LTD ADRNTDOY
- Share
- 0.1%
- Value
- $740,674
- Shares
- 70,675
Held
- Himax TechnologiesHIMX
- Share
- 0.1%
- Value
- $605,899
- Shares
- 39,498
-12%
- CES Energy SolutionsCESDF
- Share
- <0.1%
- Value
- $389,504
- Shares
- 33,350
Held
- Beyond Meat
- Share
- <0.1%
- Value
- $285,953
- Shares
- 381,271
New
- ElectrovayaELVA
- Share
- <0.1%
- Value
- $276,224
- Shares
- 26,307
Held
- Redhill BiopharmaRDHL
- Share
- <0.1%
- Value
- $74,702
- Shares
- 88,405
Held
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| CareDxCDNA | 9.7% | $50m | 1,770,735 | Held |
| GeneDx HoldingsWGS | 6.9% | $36m | 524,865 | +73% |
| Ensign GroupENSG | 5.4% | $28m | 173,911 | -3% |
| AmerescoAMRC | 4.4% | $23m | 826,562 | Held |
| Generac HoldingsGNRC | 4.1% | $21m | 73,170 | -2% |
| Enterprise Products Partners L.P.EPD | 3.6% | $19m | 510,576 | Held |
| QuidelOrthoQDEL | 3.5% | $18m | 1,030,371 | +155% |
| Cheesecake FactoryCAKE | 3.4% | $18m | 221,792 | Held |
| EquinixEQIX | 3.4% | $17m | 16,720 | Held |
| CarMaxKMX | 3.3% | $17m | 325,410 | +5% |
| FreshworksFRSH | 3.1% | $16m | 1,563,866 | -10% |
| Pacira BioSciencesPCRX | 3.0% | $15m | 608,617 | Held |
| Five9FIVN | 3.0% | $15m | 722,698 | +16% |
| Hinge HealthHNGE | 2.9% | $15m | 182,959 | +47% |
| Biolife SolutionsBLFS | 2.9% | $15m | 535,906 | Held |
| Profound MedicalPROF | 2.5% | $13m | 1,960,074 | Held |
| CarGurusCARG | 2.4% | $13m | 367,073 | +35% |
| Treace Medical ConceptsTMCI | 2.3% | $12m | 3,029,543 | -42% |
| 0 | 2.3% | $12m | 765,179 | New |
| Intuitive SurgicalISRG | 2.2% | $12m | 29,144 | -8% |
| BlacklineBL | 2.0% | $11m | 375,769 | +27% |
| Aspen AerogelsASPN | 1.9% | $10m | 1,535,812 | -18% |
| Proto LabsPRLB | 1.8% | $9m | 116,283 | +5% |
| VertexVERX | 1.7% | $9m | 761,026 | +63% |
| AmplitudeAMPL | 1.6% | $8m | 1,055,508 | Held |
| MarinemaxHZO | 1.5% | $8m | 211,480 | -4% |
| Orasure TechnologiesOSUR | 1.4% | $7m | 1,592,147 | -7% |
| DoubleVerify HoldingsDV | 1.1% | $6m | 523,328 | +7% |
| CelcuityCELC | 1.1% | $6m | 53,240 | Held |
| Chipotle Mexican GrillCMG | 1.0% | $5m | 155,463 | Held |
| CareTrust REITCTRE | 1.0% | $5m | 129,955 | -2% |
| Pennant GroupPNTG | 1.0% | $5m | 135,035 | Held |
| Whitecap RESWCPRF | 0.9% | $5m | 435,100 | Held |
| ICU MedicalICUI | 0.8% | $4m | 29,400 | Held |
| KalturaKLTR | 0.8% | $4m | 3,266,999 | Held |
| Microchip TechnologyMCHP | 0.5% | $2m | 26,229 | -2% |
| GentexGNTX | 0.3% | $1m | 57,159 | Held |
| Global Net LeaseGNL | 0.3% | $1m | 160,598 | -6% |
| SL Green RealtySLG | 0.3% | $1m | 25,862 | Held |
| Boston BeerSAM | 0.2% | $1m | 7,283 | Held |
| nCinoNCNO | 0.2% | $1m | 75,333 | -5% |
| Flagstar Bank, National AssociationFLG | 0.2% | $1m | 74,456 | Held |
| Digital TurbineAPPS | 0.2% | $1m | 81,839 | Held |
| Weave CommunicationsWEAV | 0.2% | $998,703 | 157,170 | +359% |
| DocusignDOCU | 0.2% | $928,645 | 20,906 | Held |
| Cnfinance HldgsCNF | 0.2% | $920,596 | 332,345 | +6% |
| AlphabetGOOGL | 0.2% | $913,438 | 2,556 | Held |
| Marvell TechnologyMRVL | 0.2% | $870,734 | 2,923 | -57% |
| Bio-TechneTECH | 0.2% | $864,050 | 12,230 | +24% |
| Devon EnergyDVN | 0.2% | $785,948 | 19,021 | Held |
| Micron TechnologyMU | 0.2% | $783,763 | 679 | -37% |
| Nintendo LTD ADRNTDOY | 0.1% | $740,674 | 70,675 | Held |
| CognexCGNX | 0.1% | $709,571 | 9,798 | Held |
| NvidiaNVDA | 0.1% | $699,915 | 3,498 | -4% |
| Commvault SystemsCVLT | 0.1% | $690,792 | 4,874 | +11% |
| AlphabetGOOG | 0.1% | $681,574 | 1,929 | Held |
| Onto InnovationONTO | 0.1% | $646,771 | 1,709 | -24% |
| AT&TT | 0.1% | $639,589 | 30,898 | -4% |
| Himax TechnologiesHIMX | 0.1% | $605,899 | 39,498 | -12% |
| PfizerPFE | 0.1% | $562,172 | 23,346 | -47% |
| Life Time Group HoldingsLTH | 0.1% | $549,911 | 13,465 | Held |
| MACOM Technology Solutions HoldingsMTSI | <0.1% | $487,254 | 1,281 | -65% |
| Viavi SolutionsVIAV | <0.1% | $476,832 | 9,986 | -31% |
| Meta PlatformsMETA | <0.1% | $472,600 | 839 | Held |
| ShopifySHOP | <0.1% | $459,346 | 4,023 | +2% |
| EtsyETSY | <0.1% | $433,524 | 5,755 | Held |
| StarbucksSBUX | <0.1% | $413,359 | 4,045 | Held |
| MerckMRK | <0.1% | $409,530 | 3,187 | Held |
| CES Energy SolutionsCESDF | <0.1% | $389,504 | 33,350 | Held |
| Akamai TechnologiesAKAM | <0.1% | $373,898 | 3,163 | +9% |
| Warby ParkerWRBY | <0.1% | $345,300 | 11,381 | New |
| RingCentralRNG | <0.1% | $331,993 | 8,517 | Held |
| VericelVCEL | <0.1% | $324,910 | 7,303 | New |
| Beyond Meat | <0.1% | $285,953 | 381,271 | New |
| Planet Labs PBCPL | <0.1% | $276,702 | 8,352 | Held |
| ElectrovayaELVA | <0.1% | $276,224 | 26,307 | Held |
| Rein TherapeuticsRNTX | <0.1% | $238,233 | 229,070 | -4% |
| RambusRMBS | <0.1% | $236,012 | 1,778 | -35% |
| BlackstoneBX | <0.1% | $228,280 | 1,940 | Held |
| MicrosoftMSFT | <0.1% | $207,399 | 556 | +2% |
| Actinium PharmaceuticalsATNM | <0.1% | $178,499 | 182,142 | -10% |
| Patterson UTI EnergyPTEN | <0.1% | $159,916 | 17,420 | -94% |
| Redhill BiopharmaRDHL | <0.1% | $74,702 | 88,405 | Held |
Over time and by industry
Value over time
Jun '25
Dec '25
Jun '26
Value is up 5.4% since 30 June 2025.
Where the money is
Health care43.3%
Technology21.1%
Industrials12.2%
Retail & consumer9.7%
Real estate4.9%
Utilities3.6%
Media & telecom0.5%
Financial services0.5%
Everyday goods0.2%
Energy0.2%
Other3.7%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.