Stocks/Funds/CIK 1599466

Gagnon Advisors, LLC

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1599466
Assets
$136M
-4.1% YoY
Holdings
22
Lifetime alpha vs market
-11.33% annual
Average hold time
5.3 yr
median 5.4 yr

Quarterly history

Cum return -6% vs S&P +52% · α -58% lifetimeAUM $136M · peak $263MFlow $-1M (-1%)2016-062017-122019-062020-122022-062023-122025-062026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+7.93%
adds when stocks drop
when a holding falls −10%+
Middle response
-1.38%
baseline attrition
Rally response
-5.60%
trims into rallies
when a holding rises +10%+

Top positions · 22

Ticker$ value% portYoYHold time
EPDEnterprise Products Part$13M9.5%+18.7%7.3 yr
AMRCAmeresco, Inc.$12M8.9%+111.1%10.5 yr
EQIXEquinix, Inc.$11M7.7%+23.0%10.0 yr
NVGSNavigator Holdings Ltd.$10M7.7%+46.8%10.0 yr
SGOViShares 0-3 Month Treasu$10M7.1%0.3 yr
WGSGeneDx Holdings Corp.$10M7.0%-27.5%3.0 yr
CDNACareDx, Inc$9M6.8%-2.2%10.3 yr
PCRXPacira BioSciences, Inc.$8M5.9%-9.1%7.0 yr
PROFProfound Medical Corp.$6M4.6%+11.3%6.3 yr
FRSHFreshworks Inc.$6M4.6%-43.1%4.8 yr
BLFSBioLife Solutions, Inc.$5M3.8%-16.5%6.0 yr
FIVNFive9, Inc.$5M3.8%-44.1%10.3 yr
BLBlackLine, Inc.$5M3.5%-23.6%7.8 yr
AMPLAmplitude, Inc.$4M3.2%-33.1%0.8 yr
DVDoubleVerify Holdings, I$4M3.1%-28.9%2.5 yr

Portfolio composition (YoY)

Industry mix
Software - Application20.7%-1.0pp$28M
Oil & Gas Midstream17.1%+4.1pp$23M
Medical - Healthcare Information Services9.3%+1.4pp$13M
Engineering & Construction8.9%+4.8pp$12M
REIT - Specialty7.7%+3.3pp$11M
Asset Management - Bonds7.1%$10M
Medical - Diagnostics & Research6.8%-1.0pp$9M
Medical - Instruments & Supplies6.5%+0.2pp$9M
Drug Manufacturers - Specialty & Generic5.9%+3.5pp$8M
Medical - Devices4.6%-3.8pp$6M
Country
US87.5%+0.6pp
GB7.7%+2.8pp
CA4.6%+0.9pp
Unknown0.2%-3.9pp
Top 5: 40.8% · Top 10: 69.7% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
AMRC$6M+0.01B111.1%
NVGS$7M+0.00B46.8%
EPD$12M+0.00B18.7%
EQIX$6M+0.00B23.0%
PROF$5M+0.00B11.3%

Losers

TickerPrev $PnLYoY %
VERX$6M-0.00B-66.0%
WGS$11M-0.00B-27.5%
FRSH$7M-0.00B-43.1%
FIVN$5M-0.00B-44.1%
BL$6M-0.00B-23.6%

Top buys this quarter · 8

SGOV iShares 0-3 Month Treasury Bonnew+$0M
HNGE Hinge Health, Inc.new+$3M
PCRX Pacira BioSciences, Inc.+$2M
FRSH Freshworks Inc.+$6M
WGS GeneDx Holdings Corp.+$10M
AMPL Amplitude, Inc.+$4M
VERX Vertex, Inc.+$4M
NVGS Navigator Holdings Ltd.+$0M

Top sells this quarter · 4

AL Air Lease Corporationexit$13M
NVDA NVIDIA Corporationexit$3M
HZO MarineMax, Inc.$3M
TMCI Treace Medical Concepts, Inc.exit$2M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$136M22+4.41%+17.59%-13.18%-0.00B
2025-12-31$158M23+3.59%+17.72%-14.12%-0.00B
2025-09-30$162M24+19.71%+17.52%+2.20%+0.00B
2025-06-30$149M24+32.92%+14.94%+17.98%-0.01B
2025-03-31$142M28+19.37%+8.30%+11.07%+0.01B
2024-12-31$156M26+35.80%+24.89%+10.91%-0.02B
2024-09-30$155M27+11.15%+36.04%-24.88%-0.00B
2024-06-30$131M27-10.51%+24.49%-35.00%+0.01B
2024-03-31$115M27-6.04%+29.62%-35.66%+0.00B
2023-12-31$114M26+4.50%+26.18%-21.68%+0.00B
2023-09-30$120M28+8.78%+21.57%-12.79%-0.02B
2023-06-30$149M29+12.51%+19.42%-6.91%-0.01B
2023-03-31$149M28-19.68%-7.82%-11.86%-0.01B
2022-12-31$148M29-2.31%+7.56%-9.87%-0.00B
2022-09-30$154M32-1.26%-4.93%+3.66%-0.01B
2022-06-30$165M33-23.78%-16.11%-7.67%-0.00B