We are live on
!
Find out more
SRFM
Shannon River Fund Management Portfolio holdings
AUM
$1.12B
1-Year Est. Return
150.26%
This Fund
S&P 500
This Quarter
Est. Return
+70.47%
1 Year Est. Return
+150.26%
3 Year Est. Return
+553.98%
5 Year Est. Return
+735.5%
10 Year Est. Return
+5,351.96%
AUM
$1.12B
AUM Growth
+$596M
(+114%)
Cap. Flow
+$335M
Cap. Flow
% of AUM
29.93%
Top 10 Holdings %
Top 10 Hldgs %
49.63%
Holding
50
New
22
Increased
12
Reduced
3
Closed
13
Avg Time Held
2.1
quarters
Top 10 Avg Time Held
1.5
quarters
Top 20 Avg Time Held
3.3
quarters
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Micro Devices
AMD
|
+$43.4M |
| 2 |
Ciena
CIEN
|
+$41.5M |
| 3 |
InterDigital
IDCC
|
+$38.7M |
| 4 |
Twilio
TWLO
|
+$35.7M |
| 5 |
Universal Technical Institute
UTI
|
+$34.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Marvell Technology
MRVL
|
+$55.8M |
| 2 |
Tower Semiconductor
TSEM
|
+$29.1M |
| 3 |
Axon Enterprise
AXON
|
+$20.1M |
| 4 |
Toast
TOST
|
+$19.4M |
| 5 |
Legence Corp
LGN
|
+$19.1M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 72.33% |
| 2 | Communication Services | 9.19% |
| 3 | Industrials | 5.24% |
| 4 | Consumer Discretionary | 4.26% |
| 5 | Healthcare | 4.16% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
|
1
Tower Semiconductor
TSEM
$25.1B
| $99.8M | 8.91% |
382,933
-121,306
| -24% | -$29.1M |
2023 Q4
10 quarters
|
|
2
Flex
FLEX
$41B
| $61.6M | 5.49% |
379,834
+68,611
| +22% | +$8.32M |
2019 Q3
27 quarters
|
|
|
3
Advanced Micro Devices
AMD
$989B
| $61.4M | 5.48% |
+105,751
| New | +$43.4M |
2026 Q2
0 quarters
|
|
|
4
InterDigital
IDCC
$8.59B
| $52.2M | 4.66% |
184,388
+130,284
| +241% | +$38.7M |
2022 Q4
14 quarters
|
|
5
Celestica
CLS
$45.1B
| $51.1M | 4.56% |
139,964
+86,469
| +162% | +$32.4M |
2025 Q4
2 quarters
|
|
6
Coherent
COHR
$57.1B
| $51M | 4.55% |
129,283
+41,378
| +47% | +$14.6M |
2025 Q2
4 quarters
|
|
7
Hinge Health
HNGE
$8.48B
| $46.6M | 4.16% |
561,224
+144,042
| +35% | +$7.82M |
2025 Q4
2 quarters
|
|
8
Extreme Networks
EXTR
$3.1B
| $46.1M | 4.11% |
1,424,095
+111,034
| +8% | +$2.68M |
2025 Q4
2 quarters
|
|
9
Kulicke & Soffa
KLIC
$4.63B
| $44.8M | 4% |
+334,781
| New | +$32.8M |
2026 Q2
0 quarters
|
|
|
10
Twilio
TWLO
$43.2B
| $41.5M | 3.71% |
+201,352
| New | +$35.7M |
2026 Q2
0 quarters
|
|
|
11
Ciena
CIEN
$56.8B
| $39.9M | 3.56% |
+81,298
| New | +$41.5M |
2026 Q2
0 quarters
|
|
12
Live Nation Entertainment
LYV
$39.9B
| $39.6M | 3.53% |
216,037
-78,361
| -27% | -$12.9M |
2025 Q4
2 quarters
|
|
13
Rambus
RMBS
$10.6B
| $38.7M | 3.46% |
291,713
-42,104
| -13% | -$5.48M |
2026 Q1
1 quarter
|
|
14
Quantinuum Inc
QNT
$1.44B
| $38.4M | 3.42% |
+469,355
| New | +$30.2M |
2026 Q2
0 quarters
|
|
|
15
Universal Technical Institute
UTI
$1.14B
| $38.1M | 3.4% |
+890,113
| New | +$34.2M |
2026 Q2
0 quarters
|
|
16
Airbnb
ABNB
$97.6B
| $35.5M | 3.17% |
247,836
+830
| +0.3% | +$113K |
2026 Q1
1 quarter
|
|
17
Take-Two Interactive
TTWO
$37.5B
| $34.5M | 3.08% |
+138,029
| New | +$30.5M |
2026 Q2
0 quarters
|
|
18
Ouster
OUST
$2.55B
| $28.1M | 2.51% |
+449,264
| New | +$15.1M |
2026 Q2
0 quarters
|
|
19
PDF Solutions
PDFS
$2.01B
| $26.2M | 2.34% |
+369,776
| New | +$18.3M |
2026 Q2
0 quarters
|
|
20
Nokia
NOK
$55.2B
| $25.3M | 2.26% |
+1,906,902
| New | +$24.5M |
2026 Q2
0 quarters
|
|
21
Allient
ALNT
$1.79B
| $22.7M | 2.02% |
+220,237
| New | +$17M |
2026 Q2
0 quarters
|
|
22
Rocket Lab Corp
RKLB
$41.1B
| $22.5M | 2.01% |
+221,143
| New | +$22M |
2026 Q2
0 quarters
|
|
23
F5
FFIV
$27B
| $21.3M | 1.9% |
51,258
+1,062
| +2% | +$377K |
2026 Q1
1 quarter
|
|
24
Dycom Industries
DY
$8.13B
| $20M | 1.78% |
+39,473
| New | +$17.3M |
2026 Q2
0 quarters
|
|
25
Cipher Digital
CIFR
$4.71B
| $16.4M | 1.46% |
+667,931
| New | +$14.1M |
2026 Q2
0 quarters
|
|
Similar funds
TFP
WMN
WAM
CC
HWCM
EI
PDM
SWA
Shannon River Fund Management's Q2 2026 Portfolio in Review
As of Q2 2026, Shannon River Fund Management held 50 positions worth $1.12B, up 114% from $524M the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Shannon River Fund Management deployed $335M of net new capital in Q2 2026, opening 22 new positions and adding to 12 existing holdings. Its largest new stake was Advanced Micro Devices: 105,751 shares worth $61.4M.
By sector, the portfolio is most concentrated in Technology at 72% of assets, up from 67% a quarter earlier, followed by Communication Services and Industrials.
On the sell side, the largest reduction was Tower Semiconductor, an estimated $29.1M trimmed.
- Shannon River Fund Management's largest Q2 2026 buy was Advanced Micro Devices: 105,751 shares worth $61.4M.
- Shannon River Fund Management added most to InterDigital in Q2 2026, an estimated $38.7M increase.
- Shannon River Fund Management's biggest Q2 2026 reduction was Tower Semiconductor, cutting an estimated $29.1M.
- Shannon River Fund Management fully exited Marvell Technology in Q2 2026, selling an estimated $55.8M.
- Shannon River Fund Management's ten largest holdings make up 50% of its $1.12B portfolio in Q2 2026.
- Shannon River Fund Management opened 22 new positions and closed 13 in Q2 2026.
- Shannon River Fund Management's portfolio value rose 114% quarter-over-quarter to $1.12B.
Based on Shannon River Fund Management's 13F filing for Q2 2026, filed 13 Aug 2026.