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GS

Gagnon Securities Portfolio holdings

AUM $433M
1-Year Est. Return 29.08%
This Fund
S&P 500
This Quarter Est. Return
+14.57%
1 Year Est. Return
+29.08%
3 Year Est. Return
+89.87%
5 Year Est. Return
+76.34%
10 Year Est. Return
+1,094.35%
AUM
$492M
AUM Growth
+$37.8M
Cap. Flow
-$6.49M
Cap. Flow %
-1.32%
Top 10 Hldgs %
49.2%
Holding
99
New
1
Increased
34
Reduced
35
Closed
12

Top Buys

Rank Stock Value
1
ASPN icon
Aspen Aerogels
ASPN
+$10.9M
2
DV icon
DoubleVerify
DV
+$3.69M
3
TMCI icon
Treace Medical Concepts
TMCI
+$3.28M
4
EQIX icon
Equinix
EQIX
+$3.23M
5
CDNA icon
CareDx
CDNA
+$2.26M

Top Sells

Rank Stock Value
1
ETWO
E2open Parent Holdings
ETWO
+$7.64M
2
VRN
Veren
VRN
+$7.44M
3
PSIX
Power Solutions International
PSIX
+$6.81M
4
MXCT icon
MaxCyte
MXCT
+$2.86M
5
IONQ icon
IonQ
IONQ
+$2.46M

Sector Composition

Rank Sector Weight
1 Healthcare 39.7%
2 Industrials 21.12%
3 Technology 14.1%
4 Consumer Discretionary 10.47%
5 Energy 6.11%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
AL
1
DELISTED
Air Lease Corp
AL
$43.1M 8.75%
736,437
+5,354
+0.7% +$279K
ENSG icon
2
The Ensign Group
ENSG
$10.6B
$32.2M 6.55%
208,994
-10,134
-5% -$1.42M
CDNA icon
3
CareDx
CDNA
$1.83B
$30.3M 6.15%
1,548,912
+127,223
+9% +$2.26M
ISRG icon
4
Intuitive Surgical
ISRG
$127B
$29.2M 5.94%
53,824
-2,881
-5% -$1.51M
WGS icon
5
GeneDx Holdings
WGS
$1.89B
$25M 5.09%
271,233
-13,678
-5% -$1.07M
PSIX
6
Power Solutions International
PSIX
$586M
$22.1M 4.49%
341,611
-183,680
-35% -$6.81M
CAKE icon
7
Cheesecake Factory
CAKE
$5.03B
$16.1M 3.26%
256,354
-974
-0.4% -$51.8K
EPD icon
8
Enterprise Products Partners
EPD
$83.7B
$15.1M 3.07%
487,590
-287
-0.1% -$8.94K
EXAS
9
DELISTED
Exact Sciences
EXAS
$14.8M 3.01%
278,789
+8,125
+3% +$413K
BL icon
10
BlackLine
BL
$1.9B
$14.3M 2.9%
252,241
+1,503
+0.6% +$77.6K
EQIX icon
11
Equinix
EQIX
$99.4B
$13.8M 2.81%
17,392
+3,802
+28% +$3.23M
FRSH icon
12
Freshworks
FRSH
$3.21B
$13.8M 2.8%
924,590
+47,701
+5% +$687K
TMCI icon
13
Treace Medical Concepts
TMCI
$262M
$13.2M 2.69%
2,250,148
+503,612
+29% +$3.28M
AMRC icon
14
Ameresco
AMRC
$980M
$13.2M 2.68%
870,245
-98,283
-10% -$1.29M
NVGS icon
15
Navigator Holdings
NVGS
$1.35B
$12.3M 2.5%
871,008
+19,365
+2% +$261K
BLFS icon
16
BioLife Solutions
BLFS
$1.54B
$11.6M 2.36%
539,896
-1,056
-0.2% -$23.8K
ASPN icon
17
Aspen Aerogels
ASPN
$339M
$11.2M 2.28%
+1,899,108
New +$10.9M
KMX icon
18
CarMax
KMX
$8.39B
$11M 2.23%
163,417
+6,067
+4% +$408K
CARG icon
19
CarGurus
CARG
$3.34B
$10.9M 2.21%
324,921
-1,515
-0.5% -$45.7K
FIVN icon
20
FIVE9
FIVN
$2.08B
$10.8M 2.19%
407,452
+28,393
+7% +$739K
PROF
21
Profound Medical
PROF
$263M
$10.3M 2.1%
1,749,913
+52,233
+3% +$276K
GNRC icon
22
Generac Holdings
GNRC
$11.5B
$9.77M 1.98%
68,189
+3,859
+6% +$471K
VERX icon
23
Vertex
VERX
$2.16B
$9.54M 1.94%
269,846
+1,226
+0.5% +$46.7K
PCRX icon
24
Pacira BioSciences
PCRX
$1.04B
$8.8M 1.79%
368,353
+60,019
+19% +$1.51M
CMG icon
25
Chipotle Mexican Grill
CMG
$43.9B
$8.23M 1.67%
146,548
+724
+0.5% +$36.8K
1
2 3 4

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Gagnon Securities's Q2 2025 Portfolio in Review

As of Q2 2025, Gagnon Securities held 99 positions worth $492M, up 8.3% from $455M the previous quarter. Its ten largest holdings account for 49% of the portfolio.

Gagnon Securities's Q2 2025 filing shows 1 new, 34 increased, 35 reduced and 12 closed positions. Its largest new stake was Aspen Aerogels: 1,899,108 shares worth $11.2M. The largest sale was E2open Parent Holdings, an estimated $7.64M.

By sector, the portfolio is most concentrated in Healthcare at 40% of assets, down from 41% a quarter earlier, followed by Industrials and Technology.

  • Gagnon Securities's largest Q2 2025 buy was Aspen Aerogels: 1,899,108 shares worth $11.2M.
  • Gagnon Securities added most to DoubleVerify in Q2 2025, an estimated $3.69M increase.
  • Gagnon Securities's biggest Q2 2025 reduction was Power Solutions International, cutting an estimated $6.81M.
  • Gagnon Securities fully exited E2open Parent Holdings in Q2 2025, selling an estimated $7.64M.
  • Gagnon Securities's ten largest holdings make up 49% of its $492M portfolio in Q2 2025.
  • Gagnon Securities opened 1 new position and closed 12 in Q2 2025.
  • Gagnon Securities's portfolio value rose 8.3% quarter-over-quarter to $492M.

Based on Gagnon Securities's 13F filing for Q2 2025, filed 23 Jul 2025.