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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 | |
|---|---|---|---|---|---|---|
|
HIMX
126
CALL
Himax Technologies
HIMX
$2.09B
| $1.07M | 0.11% |
70,000
-10,000
| -13% | -$155K |
|
127
SunPower Inc
SPWR
$58.3M
| $973K | 0.1% |
1,416,065
+456,065
| +48% | +$447K |
|
128
Commault Systems
CVLT
$4.97B
| $865K | 0.09% |
+6,100
| New | +$655K |
|
129
American Superconductor
AMSC
$1.39B
| $830K | 0.09% |
20,000
-5,000
| -20% | -$226K |
|
130
LSB Industries
LXU
$822M
| $811K | 0.08% |
75,000
+50,000
| +200% | +$669K |
|
131
PUT
Korn Ferry
KFY
$4.26B
| $666K | 0.07% |
+10,000
| New | +$677K |
|
132
Itron
ITRI
$4.75B
| $649K | 0.07% |
7,500
-7,500
| -50% | -$640K |
|
133
CALL
Aldeyra Therapeutics
ALDX
$95.3M
| $639K | 0.07% |
300,000
| – | – |
|
|
NB
134
NioCorp Developments
NB
$587M
| $603K | 0.06% |
+125,000
| New | +$684K |
|
135
CALL
AXT Inc
AXTI
$2.8B
| $577K | 0.06% |
+8,000
| New | +$721K |
|
136
Atlassian
TEAM
$25.4B
| $545K | 0.06% |
+7,000
| New | +$572K |
|
137
FTAI Infrastructure
FIP
$482M
| $464K | 0.05% |
+100,000
| New | +$498K |
|
138
Fluence Energy
FLNC
$1.68B
| $395K | 0.04% |
20,000
-165,000
| -89% | -$3.07M |
|
139
Tronox
TROX
$981M
| $315K | 0.03% |
+50,000
| New | +$424K |
|
140
SolarEdge
SEDG
$2.44B
| $292K | 0.03% |
+5,000
| New | +$262K |
|
141
MP Materials
MP
$7.35B
| $280K | 0.03% |
5,000
-10,000
| -67% | -$609K |
|
142
Ivanhoe Electric
IE
$1.44B
| $240K | 0.03% |
25,000
| – | – |
|
|
USAR
143
USA Rare Earth Inc
USAR
$3.44B
| $216K | 0.02% |
+10,000
| New | +$228K |
|
144
Bioceres Crop Solutions
BIOX
$20.6M
| $166K | 0.02% |
475,000
| – | – |
|
145
CALL
Viant Technology
DSP
$227M
| $158K | 0.02% |
+12,500
| New | +$141K |
|
|
146
PUT
Apple
AAPL
$4.99T
| – | – |
-30,000
| Closed | -$7.61M |
|
147
Analog Devices
ADI
$178B
| – | – |
-16,000
| Closed | -$5.09M |
|
148
Advanced Energy
AEIS
$10.9B
| – | – |
-5,000
| Closed | -$1.61M |
|
149
Albemarle
ALB
$13.3B
| – | – |
-1,500
| Closed | -$269K |
|
150
Applied Materials
AMAT
$378B
| – | – |
-25,000
| Closed | -$8.54M |
|
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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.