We are live on
!
Find out more
AI
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
(-4.5%)
Cap. Flow
-$53.1M
Cap. Flow
% of AUM
-4.22%
Top 10 Holdings %
Top 10 Hldgs %
13.02%
Holding
858
New
274
Increased
136
Reduced
131
Closed
302
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Vanguard S&P 500 ETF
VOO
|
+$41.7M |
| 2 |
Bio-Techne
TECH
|
+$21.4M |
| 3 |
SiteOne Landscape Supply
SITE
|
+$15.1M |
| 4 |
Casella Waste Systems
CWST
|
+$11.4M |
| 5 |
F5
FFIV
|
+$10.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
iShares Russell 2000 ETF
IWM
|
+$97.9M |
| 2 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$67.3M |
| 3 |
iShares Russell 2000 Value ETF
IWN
|
+$40.2M |
| 4 |
State Street SPDR S&P Retail ETF
XRT
|
+$19.5M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
51
Blue Bird Corp
BLBD
$2.29B
| $5.82M | 0.46% |
+123,801
| New | +$6.47M |
|
52
Kodiak Sciences
KOD
$2.5B
| $5.8M | 0.46% |
+207,495
| New | +$4.25M |
|
53
The Ensign Group
ENSG
$10.6B
| $5.74M | 0.46% |
32,943
+11,055
| +51% | +$1.99M |
|
54
Performance Food Group
PFGC
$18.3B
| $5.56M | 0.44% |
61,856
+9,839
| +19% | +$950K |
|
55
W.W. Grainger
GWW
$64.2B
| $5.55M | 0.44% |
+5,505
| New | +$5.34M |
|
56
Alliant Energy
LNT
$18.6B
| $5.53M | 0.44% |
+84,997
| New | +$5.7M |
|
57
UroGen Pharma
URGN
$1.97B
| $5.49M | 0.44% |
234,423
-57,539
| -20% | -$1.25M |
|
58
Floor & Decor
FND
$6.03B
| $5.42M | 0.43% |
88,938
+63,675
| +252% | +$4.13M |
|
59
Universal Technical Institute
UTI
$2.26B
| $5.41M | 0.43% |
+207,027
| New | +$5.86M |
|
60
Builders FirstSource
BLDR
$7.29B
| $5.26M | 0.42% |
51,161
+10,644
| +26% | +$1.2M |
|
61
Malibu Boats
MBUU
$548M
| $5.25M | 0.42% |
186,051
+18,406
| +11% | +$534K |
|
62
C3.ai
AI
$1.38B
| $5.05M | 0.4% |
374,371
+311,813
| +498% | +$4.97M |
|
|
EFOR
63
Everforth Inc
EFOR
$960M
| $5.05M | 0.4% |
+104,762
| New | +$4.83M |
|
|
THR
64
DELISTED
Thermon Group Holdings
THR
| $5.01M | 0.4% |
134,849
+88,006
| +188% | +$2.89M |
|
65
Constellation Brands
STZ
$22.5B
| $4.97M | 0.39% |
36,040
+16,651
| +86% | +$2.28M |
|
66
Element Solutions
ESI
$8.48B
| $4.9M | 0.39% |
196,251
-42,857
| -18% | -$1.11M |
|
67
Cactus
WHD
$3.63B
| $4.88M | 0.39% |
+106,891
| New | +$4.47M |
|
68
Entegris
ENTG
$16.3B
| $4.88M | 0.39% |
+57,914
| New | +$5.03M |
|
69
DigitalBridge
DBRG
$2.92B
| $4.87M | 0.39% |
+317,345
| New | +$3.81M |
|
70
Praxis Precision Medicines
PRAX
$8.11B
| $4.86M | 0.39% |
+16,487
| New | +$3.07M |
|
71
Baxter International
BAX
$12.8B
| $4.85M | 0.39% |
+253,943
| New | +$5.08M |
|
72
James Hardie Industries
JHX
$15.2B
| $4.84M | 0.38% |
+233,159
| New | +$4.68M |
|
73
Walt Disney
DIS
$171B
| $4.81M | 0.38% |
42,322
+40,019
| +1,738% | +$4.41M |
|
74
Wyndham Hotels & Resorts
WH
$5.61B
| $4.81M | 0.38% |
63,595
+38,539
| +154% | +$2.91M |
|
75
Alphabet (Google) Class C
GOOG
$4.11T
| $4.76M | 0.38% |
15,183
-15
| -0.1% | -$4.3K |
|
Similar funds
SP
ELC
HRES
SRAIM
PMG
TCC
FCP
SC
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.