1y return+17.1%S&P 500 +20.9%
3y return+46.6%S&P 500 +68.5%
5y return−11.2%S&P 500 +74.5%
These returns are for its stock picks as disclosed on Form 13F: last quarter's holdings, valued at this quarter's prices. They miss trades within each quarter, short positions, options, bonds, cash and fees, so they aren't the returns its clients got.
$100 invested in its stock picks
Since September 30, 2017: $205 against $297 in the S&P 500.2
Gagnon Securities LLCS&P 500 (SPY)
Top holdings
At the end of June 30, 2026. Change is in shares since the quarter before.2
| Stock | Value | Share of portfolio | Change |
|---|---|---|---|
| CDNACaredx Inc | $50.5M | 9.7% | |
| WGSGenedx Holdings Corp | $36.0M | 6.9% | +73.1% |
| ENSGEnsign Group Inc | $27.9M | 5.4% | −3.2% |
| AMRCAmeresco Inc | $22.8M | 4.4% | −1.6% |
| GNRCGenerac Hldgs Inc | $21.4M | 4.1% | −2.3% |
| EPDEnterprise Prods Partners L P | $18.8M | 3.6% | |
| QDELQuidelortho Corp | $18.0M | 3.5% | +155.5% |
| CAKECheesecake Factory Inc | $17.6M | 3.4% | −1.4% |
| EQIXEquinix Inc | $17.4M | 3.4% | −1.4% |
| KMXCarmax Inc | $17.2M | 3.3% | +5.1% |
| FRSHFreshworks Inc | $15.8M | 3.1% | −9.7% |
| PCRXPacira Biosciences Inc | $15.4M | 3.0% | −1.4% |
| FIVNFive9 Inc | $15.4M | 3.0% | +16.2% |
| HNGEHinge Health Inc | $15.2M | 2.9% | +47.3% |
| Biolife Solutions IncCUSIP 09062W204 | $15.1M | 2.9% | |
| PROFProfound Med Corp | $13.0M | 2.5% | |
| CARGCargurus Inc | $12.5M | 2.4% | +35.2% |
| TMCITreace Med Concepts Inc | $12.1M | 2.3% | −41.8% |
| Gambling Com GroupCUSIP 000000000 | $11.7M | 2.3% | New |
| ISRGIntuitive Surgical Inc | $11.6M | 2.2% | −7.8% |
| BLBlackline Inc | $10.5M | 2.0% | +26.8% |
| ASPNAspen Aerogels Inc | $9.7M | 1.9% | −17.5% |
| PRLBProto Labs Inc | $9.5M | 1.8% | +4.9% |
| VERXVertex Inc | $8.7M | 1.7% | +62.5% |
| AMPLAmplitude Inc | $8.1M | 1.6% |
Best picks still held
How each current holding has done since the quarter it first appeared in its filings (up to six years back).
| Stock | Held since | Return since | Now worth |
|---|---|---|---|
| ENSGEnsign Group Inc | June 30, 2020 | +283.0% | $27.9M |
| CAKECheesecake Factory Inc | June 30, 2020 | +247.1% | $17.6M |
| CARGCargurus Inc | September 30, 2022 | +140.6% | $12.5M |
| GNRCGenerac Hldgs Inc | June 30, 2020 | +140.1% | $21.4M |
| CTRECaretrust Reit Inc | June 30, 2020 | +135.1% | $5.2M |
| HNGEHinge Health Inc | March 31, 2026 | +115.2% | $15.2M |
| ISRGIntuitive Surgical Inc | June 30, 2020 | +109.4% | $11.6M |
| EPDEnterprise Prods Partners L P | June 30, 2020 | +102.3% | $18.8M |
| MCHPMicrochip Technology Inc. | June 30, 2020 | +73.2% | $2.4M |
| Biolife Solutions IncCUSIP 09062W204 | June 30, 2020 | +72.7% | $15.1M |
Sold off last quarter
- Navigator Hldgs LtdCUSIP Y62132108 was $17.1M
- SGOVIshares Tr was $9.3M
- Alpha & Omega Semiconductor LtCUSIP G6331P104 was $3.7M
- Gambling Com Group LimitedCUSIP G3R239101 was $426K
- EOGEog Res Inc was $268K
- SVVSavers Value Vlg Inc was $187K
Quarter by quarter
| Quarter | Its picks | S&P 500 |
|---|---|---|
| June 30, 2026 | +19.6% | +14.8% |
| March 31, 2026 | −7.4% | −4.6% |
| December 31, 2025 | +1.1% | +2.4% |
| September 30, 2025 | +4.5% | +7.8% |
| June 30, 2025 | +12.4% | +10.5% |
| March 31, 2025 | −9.9% | −4.6% |
| December 31, 2024 | +5.1% | +2.1% |
| September 30, 2024 | +13.5% | +5.4% |
| June 30, 2024 | +4.0% | +4.0% |
| March 31, 2024 | +2.2% | +10.0% |
| December 31, 2023 | +9.1% | +11.2% |
| September 30, 2023 | −10.6% | −3.6% |
| June 30, 2023 | +3.6% | +8.3% |
| March 31, 2023 | +2.0% | +7.0% |
| December 31, 2022 | +2.9% | +7.1% |
| September 30, 2022 | −5.5% | −5.3% |
| June 30, 2022 | −23.1% | −16.5% |
| March 31, 2022 | −20.6% | −4.9% |
| December 31, 2021 | +1.0% | +10.7% |
| September 30, 2021 | −4.5% | +0.3% |
Sources
Every number on this page points here. Each one links to the public record.
- 1SEC EDGAR: Gagnon Securities LLC Form 13F filingshttps://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1125725&type=13F-HR&dateb=&owner=include&count=40CIK 1125725
- 2SEC: 13F for the quarter ended June 30, 2026https://www.sec.gov/Archives/edgar/data/1125725/000101905626000123/Filed August 5, 2026 · accession 0001019056-26-000123