Gagnon Advisors, LLC

Q2 2026 13F-HR Holdings

Location
New York, NY
Holdings as of
6/30/2026
Date filed
8/4/2026
Form type
13F-HR
Num holdings
23
Total value ($000)
$157,257
Net value change ($000)
+21,328 (15.7%)
New positions
3
Sold out positions
3
Turnover %
22.1%
Sector allocation + QoQ delta (equities-only)
Prev filing: 4/21/2026 Next filing: — SEC filing

Snapshot: Change Analysis

Compared to Q1 2026
Methodology: sector metrics are equities-only; instrument mix chart is ex-options; options exposure is shown separately. Why this matters.
Top Adds (Value $000, Stocks/ETFs)
CDNA 6,335 68.5%
HNGE 6,289 201.9%
TMCI 6,105 NEW
QDEL 4,223 NEW
WGS 2,692 28.3%
BLFS 2,512 48.0%
FIVN 2,068 40.5%
OSUR 1,763 48.7%
FRSH 1,622 26.0%
AMRC 993 8.2%
Top Reduces (Value $000, Stocks/ETFs)
NVGS -10,436 -100.0%
SGOV -9,625 -100.0%
AOSL -2,664 -100.0%
BL -1,161 -24.1%
EPD -367 -2.9%
CNF -15 -4.8%
Instrument mix + QoQ Δ (ex-options)
How this table is calculated: SEC VALUE ($000) is used as reported. For derivatives (PUT/CALL/WARRANT/RIGHT), SEC value represents reported underlying exposure, not premium cash paid/received. Column % is bucket-based: non-options share is calculated inside non-option total, options share is calculated inside options total. Details.
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Instrument:
Issuer Name Ticker Sector Industry Class History Value ($000) % Shares Shares Δ Shares Δ% Value Δ ($000) Value Δ% Principal Option Type