We are live on ! Find out more
ACM

Atika Capital Management Portfolio holdings

AUM $1.52B
1-Year Est. Return 229.41%
This Fund
S&P 500
This Quarter Est. Return
+67.26%
1 Year Est. Return
+229.41%
3 Year Est. Return
+810.62%
5 Year Est. Return
+1,830.01%
10 Year Est. Return
+67,312.86%
AUM
$1.52B
AUM Growth
+$725M
Cap. Flow
+$143M
Cap. Flow %
9.43%
Top 10 Hldgs %
50.26%
Holding
104
New
44
Increased
15
Reduced
13
Closed
23

Top Buys

Rank Stock Value
1
AMD icon
Advanced Micro Devices
AMD
+$39.2M
2
INTC icon
Intel
INTC
+$26.7M
3
STX icon
Seagate
STX
+$20.1M
4
ECHO
EchoStar
ECHO
+$18.3M
5
AXSM icon
Axsome Therapeutics
AXSM
+$13.7M

Top Sells

Rank Stock Value
1
TERN
Terns Pharmaceuticals
TERN
+$15.8M
2
NET icon
Cloudflare
NET
+$13.4M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$12.4M
4
ORKA
Oruka Therapeutics
ORKA
+$8.66M
5
MTZ icon
MasTec
MTZ
+$8.46M

Sector Composition

Rank Sector Weight
1 Miscellaneous 33.76%
2 Technology 20.12%
3 Healthcare 19.16%
4 Industrials 18.7%
5 Communication Services 3.59%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
MELI icon
51
Mercado Libre
MELI
$100B
$7.66M 0.5%
4,510
– –
APPF icon
52
AppFolio
APPF
$7.59B
$7.62M 0.5%
47,500
– –
PTGX icon
53
Protagonist Therapeutics
PTGX
$9.43B
$7.61M 0.5%
62,100
– –
RDDT icon
54
Reddit
RDDT
$29.7B
$7.46M 0.49%
+43,000
New +$6.89M
SMTC icon
55
Semtech
SMTC
$13.8B
$7.45M 0.49%
+46,000
New +$6.01M
ECHO
56
CALL
EchoStar
ECHO
$26.1B
$7.2M 0.47%
709
-874
-55% -$107K
FIVE icon
57
Five Below
FIVE
$13.9B
$7.19M 0.47%
40,000
+520
+1% +$112K
FERG icon
58
Ferguson
FERG
$44.2B
$6.95M 0.46%
29,300
– –
ENPH icon
59
CALL
Enphase Energy
ENPH
$4.81B
$5.91M 0.39%
+1,200
New +$54.7K
DFTX
60
Definium Therapeutics
DFTX
$5.12B
$5.74M 0.38%
+122,000
New +$3.01M
IMNM icon
61
Immunome
IMNM
$3.04B
$5.57M 0.37%
262,900
– –
HUT
62
Hut 8
HUT
$11.5B
$5.14M 0.34%
44,500
-4,800
-10% -$465K
WRBY icon
63
Warby Parker
WRBY
$3.01B
$4.55M 0.3%
150,000
+15,000
+11% +$371K
JATT
64
JATT II Acquisition Corp
JATT
$95.2M
$4.54M 0.3%
+400,000
New +$4.25M
PRAX icon
65
Praxis Precision Medicines
PRAX
$9.82B
$4.32M 0.28%
+12,900
New +$4.08M
LASR icon
66
nLIGHT
LASR
$2.31B
$3.83M 0.25%
55,000
-11,000
-17% -$767K
ABVX
67
Abivax
ABVX
$10B
$3.6M 0.24%
27,000
-1,800
-6% -$204K
CRWV
68
CALL
CoreWeave
CRWV
$49.3B
$3.48M 0.23%
+350
New +$37.8K
TEVA icon
69
CALL
Teva Pharmaceuticals
TEVA
$42.4B
$3.39M 0.22%
+1,000
New +$33.3K
ALKS icon
70
Alkermes
ALKS
$7.73B
$2.91M 0.19%
+55,571
New +$2.17M
CRWD icon
71
CrowdStrike
CRWD
$218B
$2.9M 0.19%
+15,200
New +$2.16M
TARS icon
72
Tarsus Pharmaceuticals
TARS
$3.98B
$2.52M 0.17%
+40,000
New +$2.56M
KRYS icon
73
Krystal Biotech
KRYS
$10.6B
$2.23M 0.15%
6,000
-4,625
-44% -$1.38M
VCEL icon
74
Vericel Corp
VCEL
$2.06B
$1.51M 0.1%
+34,000
New +$1.22M
MANE
75
Veradermics Inc
MANE
$4.12B
$1.48M 0.1%
+12,000
New +$1.12M
1 2
3
4 5

Similar funds

ACM
Adelante Capital Management Alameda, California $1.52B AUM 23.15% 1-Year Est. Return
MP
Mangrove Partners Greenwich, Connecticut $1.52B AUM 36.54% 1-Year Est. Return
MIM
Marco Investment Management Atlanta, Georgia $1.52B AUM 47.33% 1-Year Est. Return
RW
RVW Wealth Los Angeles, California $1.52B AUM 23.06% 1-Year Est. Return
AU
Algebris (UK) London, United Kingdom $1.52B AUM 3.09% 1-Year Est. Return
WFA
Wellspring Financial Advisors Cleveland, Ohio $1.52B AUM 29.68% 1-Year Est. Return
KCMH
Kontiki Capital Management (HK) Hong Kong $1.52B AUM 10.48% 1-Year Est. Return
SC
Styrax Capital New York $1.52B AUM 57.44% 1-Year Est. Return

Atika Capital Management's Q2 2026 Portfolio in Review

As of Q2 2026, Atika Capital Management held 104 positions worth $1.52B, up 91% from $796M the previous quarter. Its ten largest holdings account for 50% of the portfolio.

Atika Capital Management deployed $143M of net new capital in Q2 2026, opening 44 new positions and adding to 15 existing holdings. Its largest new stake was Advanced Micro Devices: 95,500 shares worth $55.5M.

By sector, the portfolio is most concentrated in Miscellaneous at 34% of assets, up from 21% a quarter earlier, followed by Technology and Healthcare.

On the sell side, the largest reduction was Oruka Therapeutics, an estimated $8.66M trimmed.

  • Atika Capital Management's largest Q2 2026 buy was Advanced Micro Devices: 95,500 shares worth $55.5M.
  • Atika Capital Management added most to Seagate in Q2 2026, an estimated $20.1M increase.
  • Atika Capital Management's biggest Q2 2026 reduction was Oruka Therapeutics, cutting an estimated $8.66M.
  • Atika Capital Management fully exited Terns Pharmaceuticals in Q2 2026, selling an estimated $15.8M.
  • Atika Capital Management's ten largest holdings make up 50% of its $1.52B portfolio in Q2 2026.
  • Atika Capital Management opened 44 new positions and closed 23 in Q2 2026.
  • Atika Capital Management's portfolio value rose 91% quarter-over-quarter to $1.52B.

Based on Atika Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.