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Atom Investors Portfolio holdings

AUM $1.4B
1-Year Est. Return 23.77%
This Fund
S&P 500
This Quarter Est. Return
+4.81%
1 Year Est. Return
+23.77%
3 Year Est. Return
+63.44%
5 Year Est. Return
+52.26%
10 Year Est. Return
–
AUM
$1.26B
AUM Growth
-$59.7M
Cap. Flow
-$53.1M
Cap. Flow %
-4.22%
Top 10 Hldgs %
13.02%
Holding
858
New
274
Increased
136
Reduced
131
Closed
302

Top Buys

Rank Stock Value
1
VOO icon
Vanguard S&P 500 ETF
VOO
+$41.7M
2
TECH icon
Bio-Techne
TECH
+$21.4M
3
SITE icon
SiteOne Landscape Supply
SITE
+$15.1M
4
CWST icon
Casella Waste Systems
CWST
+$11.4M
5
FFIV icon
F5
FFIV
+$10.8M

Top Sells

Rank Stock Value
1
IWM icon
iShares Russell 2000 ETF
IWM
+$97.9M
2
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$67.3M
3
IWN icon
iShares Russell 2000 Value ETF
IWN
+$40.2M
4
XRT icon
State Street SPDR S&P Retail ETF
XRT
+$19.5M
5
XLF icon
State Street Financial Select Sector SPDR ETF
XLF
+$17.5M

Sector Composition

Rank Sector Weight
1 Industrials 17.84%
2 Healthcare 17.1%
3 Consumer Discretionary 15.33%
4 Technology 13%
5 Financials 7.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TSLX icon
176
Sixth Street Specialty
TSLX
$1.67B
$2.32M 0.18%
107,014
-80,590
-43% -$1.76M
UPST icon
177
Upstart Holdings
UPST
$2.55B
$2.3M 0.18%
+52,694
New +$2.43M
PKG icon
178
Packaging Corp of America
PKG
$22.2B
$2.27M 0.18%
11,008
-606
-5% -$123K
BRK.A icon
179
Berkshire Hathaway Class A
BRK.A
$1.1T
$2.26M 0.18%
3
– –
AEBI
180
Aebi Schmidt Holding AG
AEBI
$1.01B
$2.25M 0.18%
+177,741
New +$2.12M
SNDK
181
Sandisk
SNDK
$150B
$2.25M 0.18%
9,468
+4,667
+97% +$935K
APD icon
182
Air Products & Chemicals
APD
$65.5B
$2.23M 0.18%
9,047
-8,712
-49% -$2.21M
TILE icon
183
Interface
TILE
$1.95B
$2.22M 0.18%
+79,591
New +$2.17M
PLYM
184
DELISTED
Plymouth Industrial REIT
PLYM
$2.22M 0.18%
+101,266
New +$2.23M
GLUE icon
185
Monte Rosa Therapeutics
GLUE
$1.82B
$2.15M 0.17%
+137,261
New +$1.85M
AEP icon
186
American Electric Power
AEP
$70.4B
$2.11M 0.17%
+18,275
New +$2.16M
CPT icon
187
Camden Property Trust
CPT
$11.5B
$2.09M 0.17%
+18,996
New +$1.98M
GH icon
188
Guardant Health
GH
$19.1B
$2.08M 0.17%
+20,383
New +$1.82M
CON
189
Concentra Group Holdings
CON
$4.04B
$2.08M 0.16%
105,549
+88,908
+534% +$1.78M
PSKY
190
Paramount Skydance Corp
PSKY
$8.9B
$2.07M 0.16%
+154,782
New +$2.42M
SGRY icon
191
Surgery Partners
SGRY
$2.15B
$2.07M 0.16%
+134,053
New +$2.46M
SDRL icon
192
Seadrill
SDRL
$2.59B
$2.07M 0.16%
+59,697
New +$1.86M
RPD icon
193
Rapid7
RPD
$628M
$2.05M 0.16%
135,154
+107,159
+383% +$1.76M
HUM icon
194
Humana
HUM
$43.9B
$2.05M 0.16%
8,003
-615
-7% -$161K
WRBY icon
195
Warby Parker
WRBY
$3.19B
$2.05M 0.16%
+94,048
New +$2.05M
HUBS icon
196
HubSpot
HUBS
$12.9B
$2.05M 0.16%
+5,102
New +$2.11M
TJX icon
197
TJX Companies
TJX
$179B
$2.02M 0.16%
13,148
+5,388
+69% +$797K
RKT icon
198
Rocket Companies
RKT
$38.8B
$2.01M 0.16%
103,955
+37,051
+55% +$662K
DK icon
199
Delek US
DK
$3.98B
$2M 0.16%
+67,524
New +$2.41M
SPT icon
200
Sprout Social
SPT
$530M
$2M 0.16%
+177,240
New +$1.91M
6 7
8
9 10

Similar funds

SP
Steelhead Partners Seattle, Washington $1.39B AUM 0.01% 1-Year Est. Return
ELC
Edgar Lomax Company Kingstowne, Virginia $1.4B AUM 20.67% 1-Year Est. Return
HRES
Heitman Real Estate Securities Chicago, Illinois $1.39B AUM 6.59% 1-Year Est. Return
SRAIM
Scheer Rowlett & Associates Investment Management Toronto, Ontario, Canada $1.39B AUM 49.24% 1-Year Est. Return
PMG
ProVise Management Group Clearwater, Florida $1.39B AUM 18.33% 1-Year Est. Return
TCC
Trans-Canada Capital Montreal, Quebec, Canada $1.39B AUM 16.61% 1-Year Est. Return
FCP
Fidelis Capital Partners Tampa, Florida $1.4B AUM 31.16% 1-Year Est. Return
SC
Sagefield Capital Dallas, Texas $1.39B AUM 60.14% 1-Year Est. Return

Atom Investors's Q4 2025 Portfolio in Review

As of Q4 2025, Atom Investors held 858 positions worth $1.26B, down 4.5% from $1.32B the previous quarter. Its ten largest holdings account for 13% of the portfolio.

Atom Investors withdrew a net $53.1M in Q4 2025, closing 302 positions and reducing 131 holdings. Its most notable exit was iShares Russell 2000 ETF, an estimated $97.9M position sold in full.

By sector, the portfolio is most concentrated in Industrials at 18% of assets, up from 11% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Atom Investors opened a new position in Vanguard S&P 500 ETF worth $42M.

  • Atom Investors's largest Q4 2025 buy was Vanguard S&P 500 ETF: 67,041 shares worth $42M.
  • Atom Investors added most to SiteOne Landscape Supply in Q4 2025, an estimated $15.1M increase.
  • Atom Investors's biggest Q4 2025 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $67.3M.
  • Atom Investors fully exited iShares Russell 2000 ETF in Q4 2025, selling an estimated $97.9M.
  • Atom Investors's ten largest holdings make up 13% of its $1.26B portfolio in Q4 2025.
  • Atom Investors opened 274 new positions and closed 302 in Q4 2025.
  • Atom Investors's portfolio value fell 4.5% quarter-over-quarter to $1.26B.

Based on Atom Investors's 13F filing for Q4 2025, filed 17 Feb 2026.