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GS

Gagnon Securities Portfolio holdings

AUM $519M
1-Year Est. Return 44.91%
This Fund
S&P 500
This Quarter Est. Return
+28.63%
1 Year Est. Return
+44.91%
3 Year Est. Return
+129.38%
5 Year Est. Return
+108.07%
10 Year Est. Return
+1,389.15%
AUM
$519M
AUM Growth
+$85.6M
Cap. Flow
-$1.22M
Cap. Flow %
-0.24%
Top 10 Hldgs %
47.74%
Holding
89
New
4
Increased
25
Reduced
46
Closed
6
Avg Time Held
18.5 quarters
Top 10 Avg Time Held
9.5 quarters
Top 20 Avg Time Held
13.1 quarters

Top Buys

Rank Stock Value
1
WGS icon
GeneDx Holdings
WGS
+$12.6M
2
QDEL icon
QuidelOrtho
QDEL
+$8.28M
3
VERX icon
Vertex
VERX
+$3.66M
4
HNGE icon
Hinge Health
HNGE
+$3.19M
5
CARG icon
CarGurus
CARG
+$3.1M

Top Sells

Rank Stock Value
1
NVGS icon
Navigator Holdings
NVGS
+$17.1M
2
SGOV icon
iShares 0-3 Month Treasury Bond ETF
SGOV
+$9.33M
3
TMCI icon
Treace Medical Concepts
TMCI
+$5.97M
4
AOSL icon
Alpha and Omega Semiconductor
AOSL
+$3.72M
5
PTEN icon
Patterson-UTI
PTEN
+$3.32M

Sector Composition

Rank Sector Weight
1 Healthcare 46.42%
2 Technology 14.65%
3 Industrials 10.46%
4 Consumer Discretionary 9.78%
5 Real Estate 4.9%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
CDNA icon
1
CareDx
CDNA
$3.38B
$50.5M 9.73%
1,770,735
+8,861
+0.5% +$193K
2014 Q3
47 quarters
WGS icon
2
GeneDx Holdings
WGS
$1.94B
$36M 6.94%
524,865
+221,716
+73% +$12.6M
2021 Q2
20 quarters
ENSG icon
3
The Ensign Group
ENSG
$10.1B
$27.9M 5.37%
173,911
-5,760
-3% -$1.02M
2018 Q2
32 quarters
AMRC icon
4
Ameresco
AMRC
$1.11B
$22.8M 4.4%
826,562
-13,501
-2% -$390K
2013 Q3
51 quarters
GNRC icon
5
Generac Holdings
GNRC
$12.7B
$21.4M 4.13%
73,170
-1,743
-2% -$437K
2013 Q2
52 quarters
EPD icon
6
Enterprise Products Partners
EPD
$77.8B
$18.8M 3.62%
510,576
-3,681
-0.7% -$139K
2017 Q4
34 quarters
QDEL icon
7
QuidelOrtho
QDEL
$967M
$18M 3.48%
1,030,371
+627,046
+155% +$8.28M
2017 Q4
34 quarters
CAKE icon
8
Cheesecake Factory
CAKE
$5.59B
$17.6M 3.4%
221,792
-3,256
-1% -$211K
2017 Q4
34 quarters
EQIX icon
9
Equinix
EQIX
$101B
$17.4M 3.36%
16,720
-231
-1% -$247K
2013 Q2
52 quarters
KMX icon
10
CarMax
KMX
$7.21B
$17.2M 3.32%
325,410
+15,711
+5% +$684K
2013 Q3
51 quarters
FRSH icon
11
Freshworks
FRSH
$3.63B
$15.8M 3.05%
1,563,866
-167,501
-10% -$1.49M
2021 Q3
19 quarters
PCRX icon
12
Pacira BioSciences
PCRX
$1.45B
$15.4M 2.98%
608,617
-8,893
-1% -$210K
2019 Q2
28 quarters
FIVN icon
13
FIVE9
FIVN
$2.65B
$15.4M 2.97%
722,698
+100,634
+16% +$1.99M
2016 Q1
41 quarters
HNGE icon
14
Hinge Health
HNGE
$8.48B
$15.2M 2.93%
182,959
+58,709
+47% +$3.19M
2026 Q1
1 quarter
BLFS icon
15
DELISTED
BioLife Solutions
BLFS
$15.1M 2.92%
535,906
-606
-0.1% -$14.2K
2020 Q2
24 quarters
PROF icon
16
Profound Medical
PROF
$256M
$13M 2.51%
1,960,074
+15,750
+0.8% +$106K
2019 Q4
26 quarters
CARG icon
17
CarGurus
CARG
$2.61B
$12.5M 2.41%
367,073
+95,549
+35% +$3.1M
2022 Q3
15 quarters
TMCI icon
18
Treace Medical Concepts
TMCI
$267M
$12.1M 2.32%
3,029,543
-2,172,343
-42% -$5.97M
2024 Q2
8 quarters
ISRG icon
19
Intuitive Surgical
ISRG
$149B
$11.6M 2.23%
29,144
-2,475
-8% -$1.08M
2018 Q2
32 quarters
BL icon
20
BlackLine
BL
$1.72B
$10.5M 2.03%
375,769
+79,345
+27% +$2.37M
2018 Q3
31 quarters
ASPN icon
21
Aspen Aerogels
ASPN
$454M
$9.74M 1.88%
1,535,812
-326,039
-18% -$1.6M
2025 Q2
4 quarters
PRLB icon
22
Protolabs
PRLB
$2.2B
$9.48M 1.83%
116,283
+5,394
+5% +$379K
2019 Q1
29 quarters
VERX icon
23
Vertex
VERX
$2.06B
$8.74M 1.68%
761,026
+292,806
+63% +$3.66M
2023 Q4
10 quarters
AMPL icon
24
Amplitude
AMPL
$1.95B
$8.07M 1.56%
1,055,508
-4,328
-0.4% -$29.9K
2025 Q3
3 quarters
HZO icon
25
MarineMax
HZO
$1.16B
$7.74M 1.49%
211,480
-9,130
-4% -$293K
2025 Q3
3 quarters
1
2 3 4

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MWC
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MWM
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CFG
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PDIP
Palo Duro Investment Partners Chicago, Illinois $518M AUM 22.62% 1-Year Est. Return
VP
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CFA
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SWM
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Gagnon Securities's Q2 2026 Portfolio in Review

As of Q2 2026, Gagnon Securities held 89 positions worth $519M, up 20% from $433M the previous quarter. Its ten largest holdings account for 48% of the portfolio.

Gagnon Securities's Q2 2026 filing shows 4 new, 25 increased, 46 reduced and 6 closed positions. Its largest new stake was Warby Parker: 11,381 shares worth $345K. The largest sale was Navigator Holdings, an estimated $17.1M.

By sector, the portfolio is most concentrated in Healthcare at 46% of assets, up from 41% a quarter earlier, followed by Technology and Industrials.

  • Gagnon Securities's largest Q2 2026 buy was Warby Parker: 11,381 shares worth $345K.
  • Gagnon Securities added most to GeneDx Holdings in Q2 2026, an estimated $12.6M increase.
  • Gagnon Securities's biggest Q2 2026 reduction was Treace Medical Concepts, cutting an estimated $5.97M.
  • Gagnon Securities fully exited Navigator Holdings in Q2 2026, selling an estimated $17.1M.
  • Gagnon Securities's ten largest holdings make up 48% of its $519M portfolio in Q2 2026.
  • Gagnon Securities opened 4 new positions and closed 6 in Q2 2026.
  • Gagnon Securities's portfolio value rose 20% quarter-over-quarter to $519M.

Based on Gagnon Securities's 13F filing for Q2 2026, filed 5 Aug 2026.