Gagnon Advisors, LLC
Long book
$135.9M
Q1 2026
Positions
22
Top-10 weight
70%
concentration
Last quarter
+18.0%
SPY +14.8%
Turnover
20%
of book per quarter
Strategy in plain words
auto-generated from filingsGagnon Advisors, LLC is a concentrated fundamental stock-picker, running a $135.9M US long book across 22 positions.
The portfolio is concentrated: the top 10 names carry 70% of the portfolio. Turnover is modest: positions are typically held for years. Current anchor positions: ENTERPRISE PRODUCTS PARTNERS, AMERESCO INC-CL A, EQUINIX INC, NAVIGATOR HOLDINGS LTD, ISHARES 0-3 MONTH TREASURY B.
Over the last 9 quarters its long book ran on average 2.7pp per quarter ahead of the S&P 500, beating the index in 6 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
+8.2%
Q2 2024
+23.5%
Q3 2024
+18.3%
Q4 2024
-12.6%
Q1 2025
+14.6%
Q2 2025
+10.8%
Q3 2025
-1.6%
Q4 2025
-14.8%
Q1 2026
+18.0%
Sector allocation
Healthcare 36%
Technology 31%
Industrials 19%
Utilities 11%
Consumer discretionary 2%
Long book by quarter
What does Gagnon Advisors, own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| EPD ENTERPRISE PRODUCTS PARTNERS | Utilities | 339.9K | $12.9M | 9.5% | Held |
| AMRC AMERESCO INC-CL A | Industrials | 472.8K | $12.1M | 8.9% | Held |
| NVGS NAVIGATOR HOLDINGS LTD | Industrials | 539.9K | $10.4M | 7.7% | +4.4% |
| WGS GENEDX HOLDINGS CORP | Healthcare | 148.2K | $9.5M | 7.0% | +16.7% |
| CDNA CAREDX INC | Healthcare | 532.9K | $9.3M | 6.8% | Held |
| PCRX PACIRA BIOSCIENCES INC | Healthcare | 352.6K | $8.0M | 5.9% | +35.2% |
| PROF PROFOUND MEDICAL CORP | Healthcare | 962.2K | $6.2M | 4.6% | Held |
| FRSH FRESHWORKS INC-CL A | Technology | 776.2K | $6.2M | 4.6% | +37.4% |
| BLFS BIOLIFE SOLUTIONS INC | Healthcare | 274.2K | $5.2M | 3.8% | Held |
| FIVN FIVE9 INC | Technology | 336.3K | $5.1M | 3.8% | Held |
| BL BLACKLINE INC | Technology | 130.1K | $4.8M | 3.5% | Held |
| AMPL AMPLITUDE INC-CLASS A | Technology | 635.0K | $4.3M | 3.2% | +38.9% |
| DV DOUBLEVERIFY HOLDINGS INC | Technology | 438.0K | $4.2M | 3.1% | Held |
| OSUR ORASURE TECHNOLOGIES INC | Healthcare | 1.2M | $3.6M | 2.7% | Held |
| VERX VERTEX INC - CLASS A | Technology | 297.1K | $3.5M | 2.6% | +27.8% |
| HNGE HINGE HEALTH INC-A | Technology | 80.8K | $3.1M | 2.3% | New |
| AOSL ALPHA & OMEGA SEMICONDUCTOR | Technology | 120.2K | $2.7M | 2.0% | Held |
| HZO MARINEMAX INC | Consumer discretionary | 97.2K | $2.6M | 1.9% | -50.0% |
| KLTR KALTURA INC | Technology | 1.4M | $1.7M | 1.3% | Held |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | Apr 22, 2026 | 22 | $135.9M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 13, 2026 | 23 | $157.5M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 3, 2025 | 24 | $162.0M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Jul 23, 2025 | 24 | $148.8M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 12, 2025 | 28 | $141.8M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Jan 24, 2025 | 26 | $156.2M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 12, 2024 | 27 | $154.8M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 27 | $131.3M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 13, 2024 | 27 | $115.3M | canonical | SEC ↗ |
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