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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
+38.82%
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
$809M
AUM Growth
+$48M
(+6.3%)
Cap. Flow
-$94.4M
Cap. Flow
% of AUM
-11.67%
Top 10 Holdings %
Top 10 Hldgs %
29.18%
Holding
208
New
63
Increased
29
Reduced
28
Closed
78
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
First Solar
FSLR
|
+$21.9M |
| 2 |
Sunrun
RUN
|
+$17.3M |
| 3 |
Eos Energy Enterprises
EOSE
|
+$10.9M |
| 4 |
Lumentum
LITE
|
+$10.7M |
| 5 |
Silicon Motion
SIMO
|
+$10.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Fluor
FLR
|
+$30.4M |
| 2 |
Arista Networks
ANET
|
+$23.7M |
| 3 |
Celestica
CLS
|
+$21.1M |
| 4 |
Affirm
AFRM
|
+$13.5M |
| 5 |
NVIDIA
NVDA
|
+$12.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 39.32% |
| 2 | Healthcare | 9.96% |
| 3 | Financials | 8.45% |
| 4 | Industrials | 8.25% |
| 5 | Consumer Discretionary | 3.78% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
26
Nu Holdings
NU
$67.8B
| $10M | 1.24% |
625,000
+125,000
| +25% | +$1.74M |
|
27
Aldeyra Therapeutics
ALDX
$97.1M
| $9.92M | 1.23% |
1,900,000
-150,000
| -7% | -$782K |
|
28
CALL
Broadcom
AVGO
$1.76T
| $9.9M | 1.22% |
+30,000
| New | +$9.2M |
|
29
Okta
OKTA
$23.8B
| $9.72M | 1.2% |
+106,000
| New | +$9.9M |
|
|
HUT
30
CALL
Hut 8
HUT
$9.93B
| $9.57M | 1.18% |
275,000
+200,000
| +267% | +$5.08M |
|
31
Applied Optoelectronics
AAOI
$6.14B
| $9.56M | 1.18% |
+364,500
| New | +$9.32M |
|
|
XIFR
32
XPLR Infrastructure LP
XIFR
$1.04B
| $8.95M | 1.11% |
880,000
+150,000
| +21% | +$1.45M |
|
33
Riot Platforms
RIOT
$6.9B
| $8.56M | 1.06% |
450,000
+125,000
| +38% | +$1.73M |
|
34
iShares Silver Trust
SLV
$27.7B
| $8.47M | 1.05% |
+200,000
| New | +$7.18M |
|
35
Lattice Semiconductor
LSCC
$16B
| $8.4M | 1.04% |
114,500
+49,500
| +76% | +$3.01M |
|
|
P
36
Everpure Inc
P
$23B
| $8.38M | 1.04% |
+100,000
| New | +$6.65M |
|
37
Mirion Technologies
MIR
$3.63B
| $7.63M | 0.94% |
328,220
-135,000
| -29% | -$2.92M |
|
38
Advanced Energy
AEIS
$10.1B
| $7.57M | 0.94% |
44,500
+9,500
| +27% | +$1.43M |
|
39
CVS Health
CVS
$135B
| $7.54M | 0.93% |
100,000
-10,000
| -9% | -$685K |
|
40
BWX Technologies
BWXT
$14.4B
| $7.37M | 0.91% |
40,000
-45,000
| -53% | -$7.24M |
|
41
Tenet Healthcare
THC
$22.2B
| $7.11M | 0.88% |
+35,000
| New | +$6.21M |
|
42
Oscar Health
OSCR
$9.22B
| $7.1M | 0.88% |
+375,000
| New | +$6.18M |
|
43
GeneDx Holdings
WGS
$1.89B
| $6.46M | 0.8% |
60,000
-20,000
| -25% | -$2.18M |
|
44
CALL
Salesforce
CRM
$154B
| $6.4M | 0.79% |
+27,000
| New | +$6.81M |
|
45
Palo Alto Networks
PANW
$256B
| $6.37M | 0.79% |
31,300
+11,800
| +61% | +$2.26M |
|
46
ADMA Biologics
ADMA
$2.02B
| $6.23M | 0.77% |
425,000
+25,000
| +6% | +$429K |
|
|
STKL
47
DELISTED
SunOpta
STKL
| $5.98M | 0.74% |
1,020,000
| – | – |
|
48
Applovin
APP
$134B
| $5.75M | 0.71% |
8,000
| – | – |
|
49
Semtech
SMTC
$9.65B
| $5.72M | 0.71% |
+80,000
| New | +$4.34M |
|
|
50
Fluor
FLR
$6.54B
| $5.68M | 0.7% |
135,000
-661,000
| -83% | -$30.4M |
|
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Ardsley Advisory Partners's Q3 2025 Portfolio in Review
As of Q3 2025, Ardsley Advisory Partners held 208 positions worth $809M, up 6.3% from $761M the previous quarter. Its ten largest holdings account for 29% of the portfolio.
Ardsley Advisory Partners withdrew a net $94.4M in Q3 2025, closing 78 positions and reducing 28 holdings. Its most notable exit was Celestica, an estimated $21.1M position sold in full.
By sector, the portfolio is most concentrated in Technology at 39% of assets, up from 37% a quarter earlier, followed by Healthcare and Financials.
Against the trend, Ardsley Advisory Partners opened a new position in Eos Energy Enterprises worth $18.1M.
- Ardsley Advisory Partners's largest Q3 2025 buy was Eos Energy Enterprises: 1,600,000 shares worth $18.1M.
- Ardsley Advisory Partners added most to First Solar in Q3 2025, an estimated $21.9M increase.
- Ardsley Advisory Partners's biggest Q3 2025 reduction was Fluor, cutting an estimated $30.4M.
- Ardsley Advisory Partners fully exited Celestica in Q3 2025, selling an estimated $21.1M.
- Ardsley Advisory Partners's ten largest holdings make up 29% of its $809M portfolio in Q3 2025.
- Ardsley Advisory Partners opened 63 new positions and closed 78 in Q3 2025.
- Ardsley Advisory Partners's portfolio value rose 6.3% quarter-over-quarter to $809M.
Based on Ardsley Advisory Partners's 13F filing for Q3 2025, filed 14 Nov 2025.