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Ardsley Advisory Partners Portfolio holdings
AUM
$960M
1-Year Est. Return
207.76%
This Fund
S&P 500
This Quarter
Est. Return
+67.81%
1 Year Est. Return
+207.76%
3 Year Est. Return
+554.53%
5 Year Est. Return
+728.66%
10 Year Est. Return
+4,084.52%
AUM
$960M
AUM Growth
+$176M
(+22%)
Cap. Flow
-$63.2M
Cap. Flow
% of AUM
-6.58%
Top 10 Holdings %
Top 10 Hldgs %
30.33%
Holding
219
New
68
Increased
29
Reduced
33
Closed
74
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Micro Devices
AMD
|
+$34.8M |
| 2 |
Primoris Services
PRIM
|
+$17.7M |
| 3 |
P
Everpure Inc
P
|
+$17.1M |
| 4 |
Apple
AAPL
|
+$12.9M |
| 5 |
TD Synnex
SNX
|
+$10.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Semtech
SMTC
|
+$27.9M |
| 2 |
Broadcom
AVGO
|
+$27.5M |
| 3 |
SNDK
Sandisk
SNDK
|
+$24.3M |
| 4 |
Arista Networks
ANET
|
+$21.3M |
| 5 |
Meta Platforms (Facebook)
META
|
+$16M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 48.31% |
| 2 | Healthcare | 11.45% |
| 3 | Industrials | 8.74% |
| 4 | Financials | 8.55% |
| 5 | Consumer Discretionary | 6.62% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
101
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$4.95B
| $2.15M | 0.22% |
55,000
| – | – |
|
102
ServiceNow
NOW
$114B
| $2.13M | 0.22% |
21,500
-51,000
| -70% | -$5.05M |
|
103
Aldeyra Therapeutics
ALDX
$95.3M
| $2.08M | 0.22% |
975,000
+25,000
| +3% | +$43K |
|
104
SentinelOne
S
$6.29B
| $2M | 0.21% |
118,000
+72,000
| +157% | +$1.11M |
|
105
Avery Dennison
AVY
$12.9B
| $1.95M | 0.2% |
12,000
-28,000
| -70% | -$4.56M |
|
106
Baker Hughes
BKR
$58B
| $1.94M | 0.2% |
+35,000
| New | +$2.21M |
|
107
PUT
Cognizant
CTSH
$23.8B
| $1.94M | 0.2% |
+50,000
| New | +$2.63M |
|
108
Energy Services of America
ESOA
$281M
| $1.93M | 0.2% |
100,000
| – | – |
|
|
NBIS
109
Nebius Group N.V.
NBIS
$43.1B
| $1.92M | 0.2% |
+7,000
| New | +$1.39M |
|
110
Cameco
CCJ
$37.9B
| $1.78M | 0.19% |
17,500
-5,000
| -22% | -$561K |
|
111
Snap
SNAP
$8.02B
| $1.55M | 0.16% |
+350,000
| New | +$1.91M |
|
112
Comstock
LODE
$215M
| $1.46M | 0.15% |
350,000
| – | – |
|
113
PUT
CoStar Group
CSGP
$12.4B
| $1.42M | 0.15% |
+50,000
| New | +$1.72M |
|
114
TC Energy
TRP
$70.5B
| $1.33M | 0.14% |
+20,000
| New | +$1.32M |
|
115
Ramaco Resources Class A
METC
$637M
| $1.32M | 0.14% |
100,000
-60,000
| -38% | -$875K |
|
|
AEVA
116
CALL
Aeva Technologies
AEVA
$1B
| $1.29M | 0.13% |
+45,000
| New | +$886K |
|
117
Denison Mines
DNN
$2.49B
| $1.22M | 0.13% |
400,000
-1,000,000
| -71% | -$3.48M |
|
118
AXT Inc
AXTI
$2.8B
| $1.21M | 0.13% |
+17,000
| New | +$1.53M |
|
119
Viant Technology
DSP
$227M
| $1.2M | 0.13% |
+95,000
| New | +$1.07M |
|
|
NTSK
120
Netskope Inc
NTSK
$4.84B
| $1.2M | 0.12% |
+109,500
| New | +$1.12M |
|
|
OPRA
121
Opera Ltd
OPRA
$1.71B
| $1.19M | 0.12% |
+60,000
| New | +$1.06M |
|
122
CALL
Zoom
ZM
$26.8B
| $1.12M | 0.12% |
13,000
-10,000
| -43% | -$945K |
|
123
Equifax
EFX
$22B
| $1.11M | 0.12% |
+7,000
| New | +$1.19M |
|
124
Western Midstream Partners
WES
$19.4B
| $1.09M | 0.11% |
+25,000
| New | +$1.08M |
|
125
Magnite
MGNI
$2.82B
| $1.09M | 0.11% |
57,500
-20,500
| -26% | -$294K |
|
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Ardsley Advisory Partners's Q2 2026 Portfolio in Review
As of Q2 2026, Ardsley Advisory Partners held 219 positions worth $960M, up 22% from $784M the previous quarter. Its ten largest holdings account for 30% of the portfolio.
Ardsley Advisory Partners withdrew a net $63.2M in Q2 2026, closing 74 positions and reducing 33 holdings. Its most notable exit was Arista Networks, an estimated $21.3M position sold in full.
By sector, the portfolio is most concentrated in Technology at 48% of assets, up from 33% a quarter earlier, followed by Healthcare and Industrials.
Against the trend, Ardsley Advisory Partners opened a new position in Primoris Services worth $13.4M.
- Ardsley Advisory Partners's largest Q2 2026 buy was Primoris Services: 135,000 shares worth $13.4M.
- Ardsley Advisory Partners added most to Advanced Micro Devices in Q2 2026, an estimated $34.8M increase.
- Ardsley Advisory Partners's biggest Q2 2026 reduction was Semtech, cutting an estimated $27.9M.
- Ardsley Advisory Partners fully exited Arista Networks in Q2 2026, selling an estimated $21.3M.
- Ardsley Advisory Partners's ten largest holdings make up 30% of its $960M portfolio in Q2 2026.
- Ardsley Advisory Partners opened 68 new positions and closed 74 in Q2 2026.
- Ardsley Advisory Partners's portfolio value rose 22% quarter-over-quarter to $960M.
Based on Ardsley Advisory Partners's 13F filing for Q2 2026, filed 13 Jul 2026.