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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
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
Axon Enterprise
AXON
|
+$20.1M |
| 4 |
Toast
TOST
|
+$19.4M |
| 5 |
LGN
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 | |
|---|---|---|---|---|---|---|
|
1
Tower Semiconductor
TSEM
$23.5B
| $99.8M | 8.91% |
382,933
-121,306
| -24% | -$29.1M |
|
2
Flex
FLEX
$40.8B
| $61.6M | 5.49% |
379,834
+68,611
| +22% | +$8.32M |
|
|
3
Advanced Micro Devices
AMD
$760B
| $61.4M | 5.48% |
+105,751
| New | +$43.4M |
|
|
4
InterDigital
IDCC
$8.65B
| $52.2M | 4.66% |
184,388
+130,284
| +241% | +$38.7M |
|
5
Celestica
CLS
$37.7B
| $51.1M | 4.56% |
139,964
+86,469
| +162% | +$32.4M |
|
6
Coherent
COHR
$54.7B
| $51M | 4.55% |
129,283
+41,378
| +47% | +$14.6M |
|
|
HNGE
7
Hinge Health
HNGE
$7.05B
| $46.6M | 4.16% |
561,224
+144,042
| +35% | +$7.82M |
|
8
Extreme Networks
EXTR
$2.95B
| $46.1M | 4.11% |
1,424,095
+111,034
| +8% | +$2.68M |
|
9
Kulicke & Soffa
KLIC
$4.24B
| $44.8M | 4% |
+334,781
| New | +$32.8M |
|
|
10
Twilio
TWLO
$36.5B
| $41.5M | 3.71% |
+201,352
| New | +$35.7M |
|
|
11
Ciena
CIEN
$53.6B
| $39.9M | 3.56% |
+81,298
| New | +$41.5M |
|
12
Live Nation Entertainment
LYV
$42.3B
| $39.6M | 3.53% |
216,037
-78,361
| -27% | -$12.9M |
|
13
Rambus
RMBS
$9.3B
| $38.7M | 3.46% |
291,713
-42,104
| -13% | -$5.48M |
|
|
QNT
14
Quantinuum Inc
QNT
$1.84B
| $38.4M | 3.42% |
+469,355
| New | +$30.2M |
|
|
15
Universal Technical Institute
UTI
$1.17B
| $38.1M | 3.4% |
+890,113
| New | +$34.2M |
|
16
Airbnb
ABNB
$112B
| $35.5M | 3.17% |
247,836
+830
| +0.3% | +$113K |
|
17
Take-Two Interactive
TTWO
$44B
| $34.5M | 3.08% |
+138,029
| New | +$30.5M |
|
18
Ouster
OUST
$2.5B
| $28.1M | 2.51% |
+449,264
| New | +$15.1M |
|
19
PDF Solutions
PDFS
$1.89B
| $26.2M | 2.34% |
+369,776
| New | +$18.3M |
|
20
Nokia
NOK
$57.2B
| $25.3M | 2.26% |
+1,906,902
| New | +$24.5M |
|
21
Allient
ALNT
$1.58B
| $22.7M | 2.02% |
+220,237
| New | +$17M |
|
22
Rocket Lab Corp
RKLB
$41.2B
| $22.5M | 2.01% |
+221,143
| New | +$22M |
|
23
F5
FFIV
$22.3B
| $21.3M | 1.9% |
51,258
+1,062
| +2% | +$377K |
|
24
Dycom Industries
DY
$8.88B
| $20M | 1.78% |
+39,473
| New | +$17.3M |
|
25
Cipher Digital
CIFR
$6.3B
| $16.4M | 1.46% |
+667,931
| New | +$14.1M |
|
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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.