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Ardsley Advisory Partners

Ardsley Advisory Partners Portfolio holdings

AUM $960M Turnover 64.84%
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
+4,084.51%
AUM
$960M
AUM Growth
+$176M
Cap. Flow
+$28.4M
Cap. Flow %
2.95%
Top 10 Hldgs %
30.33%
Holding
219
New
68
Increased
29
Reduced
33
Closed
74
Avg Time Held Equity + Options
0.6 years
Top 10 Avg Time Held Equity + Options
0.1 years
Top 20 Avg Time Held Equity + Options
0.3 years
Avg Time Held Equity only
0.6 years
Top 10 Avg Time Held Equity only
0.1 years
Top 20 Avg Time Held Equity only
0.3 years

Top Buys

Rank Stock Value
1
AMD icon
Advanced Micro Devices
AMD
+$34.8M
2
PRIM icon
Primoris Services
PRIM
+$17.7M
3
P icon
Everpure Inc
P
+$17.1M
4
AAPL icon
Apple
AAPL
+$12.9M
5
SNX icon
TD Synnex
SNX
+$10.5M

Top Sells

Rank Stock Value
1
SMTC icon
Semtech
SMTC
+$27.9M
2
AVGO icon
Broadcom
AVGO
+$27.5M
3
SNDK icon
Sandisk
SNDK
+$24.3M
4
ANET icon
Arista Networks
ANET
+$21.3M
5
META icon
Meta Platforms (Facebook)
META
+$16M

Sector Composition

Rank Sector Weight
1 Technology 48.31%
2 Healthcare 11.45%
3 Industrials 10.03%
4 Financials 8.55%
5 Consumer Discretionary 5.36%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow Held Since
ALGT icon
26
Allegiant Air
ALGT
$2.52B
$10.6M 1.1%
+90,000
New +$7.78M
2026 Q2
0 quarters
OKTA icon
27
Okta
OKTA
$32B
$10.4M 1.09%
76,500
+8,900
+13% +$837K
2026 Q1
1 quarter
EQIX icon
28
Equinix
EQIX
$104B
$10.4M 1.09%
10,000
+2,050
+26% +$2.19M
2026 Q1
1 quarter
HUT icon
29
Hut 8
HUT
$6.91B
$10.4M 1.08%
90,000
-60,000
-40% -$5.82M
2025 Q2
4 quarters
AMLP icon
30
Alerian MLP ETF
AMLP
$12.2B
$10.4M 1.08%
200,000
– –
2026 Q1
1 quarter
OSCR icon
31
Oscar Health
OSCR
$9.6B
$10M 1.04%
+350,000
New +$7.53M
2026 Q2
0 quarters
BE icon
32
Bloom Energy
BE
$56.8B
$9.4M 0.98%
31,000
+18,000
+138% +$4.61M
2025 Q2
4 quarters
CIFR icon
33
Cipher Digital
CIFR
$3.13B
$9.18M 0.96%
375,000
-75,000
-17% -$1.58M
2026 Q1
1 quarter
NU icon
34
Nu Holdings
NU
$63.9B
$9M 0.94%
675,000
– –
2025 Q2
4 quarters
CBRS icon
35
Cerebras Systems
CBRS
$25.8B
$8.66M 0.9%
+39,000
New +$9.18M
2026 Q2
0 quarters
LITE icon
36
Lumentum
LITE
$54.1B
$8.53M 0.89%
10,000
+3,800
+61% +$3.39M
2025 Q3
3 quarters
RELY icon
37
Remitly
RELY
$4.83B
$8.4M 0.88%
+375,000
New +$7.69M
2026 Q2
0 quarters
DVN icon
38
Devon Energy
DVN
$53.1B
$8.26M 0.86%
+200,000
New +$9.27M
2026 Q2
0 quarters
AVGO icon
39
Broadcom
AVGO
$1.66T
$7.93M 0.83%
21,000
-68,500
-77% -$27.5M
2024 Q3
7 quarters
ALK icon
40
Alaska Air
ALK
$4.34B
$7.83M 0.82%
150,000
-15,000
-9% -$641K
2026 Q1
1 quarter
GLW icon
41
Corning
GLW
$98.3B
$7.66M 0.8%
+30,000
New +$5.46M
2026 Q2
0 quarters
FLR icon
42
Fluor
FLR
$6.28B
$7.47M 0.78%
142,500
+60,000
+73% +$2.94M
2022 Q4
14 quarters
VRTX icon
43
Vertex Pharmaceuticals
VRTX
$137B
$7.45M 0.78%
+15,000
New +$6.65M
2026 Q2
0 quarters
VCYT icon
44
Veracyte
VCYT
$1.96B
$7.34M 0.76%
125,000
– –
2025 Q4
2 quarters
SMTC icon
45
Semtech
SMTC
$10.7B
$7.28M 0.76%
45,000
-213,750
-83% -$27.9M
2025 Q3
3 quarters
JAZZ icon
46
Jazz Pharmaceuticals
JAZZ
$15.5B
$7.23M 0.75%
+30,000
New +$6.57M
2026 Q2
0 quarters
GSM icon
47
FerroAtlántica
GSM
$561M
$6.95M 0.72%
+2,185,000
New +$9.04M
2026 Q2
0 quarters
AKAM icon
48
Akamai
AKAM
$12.3B
$6.62M 0.69%
+56,000
New +$6.97M
2026 Q2
0 quarters
ORCL icon
49
CALL
Oracle
ORCL
$391B
$6.59M 0.69%
+45,000
New +$8.16M
2026 Q2
0 quarters
VZ icon
50
Verizon
VZ
$192B
$6.57M 0.68%
155,000
+25,000
+19% +$1.17M
2026 Q1
1 quarter

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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's Q2 2026 filing shows 68 new, 29 increased, 33 reduced and 74 closed positions. Its largest new stake was Primoris Services: 135,000 shares worth $13.4M. The largest sale was Semtech, an estimated $27.9M.

By sector, the portfolio is most concentrated in Technology at 48% of assets, up from 33% a quarter earlier, followed by Healthcare and Industrials.

  • 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.