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Hedge Funds Similar to Gagnon Advisors,

13F Portfolio OverlapQ1 2026Gagnon Advisors, portfolio →
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Most similar hedge funds by 13F overlap

Gagnon Advisors, LLC is an institutional investor managing $136M across 22 U.S. equity positions as of Q1 2026. Based on the overlap of conviction holdings in their latest 13F filings, the hedge funds with portfolios most similar to Gagnon Advisors, are GAGNON SECURITIES, PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTURE, Opti ,, with shared positions in $CDNA, $AMRC, $WGS, $EPD, $NVGS, $EQIX. The full ranking of 9 similar funds is below.

#1GAGNON SECURITIES LLCPassive
Highly similar · 20 shared positions
$CDNA$AMRC$WGS$EPD$NVGS$EQIX
$433M
85 positions
#2PARAGON ASSOCIATES & PARAGON ASSOCIATES II JOINT VENTUREActive
Notable overlap · 3 shared positions
$NVGS$CDNA$PROF
$74M
14 positions
#3Opti Capital Management, LPActive
Notable overlap · 3 shared positions
$FIVN$BL$VERX
$1.4B
36 positions
#4Tensile Capital Management LPActive
Notable overlap · 3 shared positions
$BL$EQIX$VERX
$698M
25 positions
#5WESTERLY CAPITAL MANAGEMENT, LLCPassive
Notable overlap · 3 shared positions
$FRSH$BL$AMPL
$368M
37 positions
#6Potrero Capital Research LLCActive
Some overlap · 3 shared positions
$BL$HNGE$FRSH
$163M
31 positions
#7ASHFORD CAPITAL MANAGEMENT INCPassive
Some overlap · 3 shared positions
$EQIX$WGS$EPD
$809M
99 positions
#8S Squared Technology, LLCActive
Some overlap · 3 shared positions
$FIVN$KLTR$AMPL
$264M
35 positions
#9Optimus Prime Fund Management Co., Ltd.Smart money
Slight overlap · 3 shared positions
$AMPL$FRSH$FIVN
$1.0B
27 positions

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Similarity is derived from each fund’s latest 13F-HR filing with the SEC. Funds are ranked by the overlap of distinctive conviction holdings; near-universal mega-cap positions are excluded so the ranking reflects shared strategy, not common index exposure. Data is informational only and not investment advice.