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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
(-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 | |
|---|---|---|---|---|---|---|
351
SharkNinja
SN
$22.9B
| $715K | 0.06% |
+6,392
| New | +$630K |
|
352
Fulcrum Therapeutics
FULC
$273M
| $685K | 0.05% |
+60,595
| New | +$617K |
|
353
Expro Ltd
XPRO
$1.79B
| $685K | 0.05% |
51,278
-2,053
| -4% | -$27.7K |
|
354
Lexeo Therapeutics
LXEO
$324M
| $680K | 0.05% |
+68,491
| New | +$625K |
|
355
GoodRx Holdings
GDRX
$1.04B
| $674K | 0.05% |
248,607
+145,391
| +141% | +$477K |
|
356
Honeywell
HON
$77B
| $667K | 0.05% |
3,417
-220
| -6% | -$43K |
|
357
Phillips 66
PSX
$84.9B
| $667K | 0.05% |
5,166
-1,211
| -19% | -$163K |
|
358
Lumentum
LITE
$55.5B
| $666K | 0.05% |
1,806
-22,928
| -93% | -$5.89M |
|
359
Trane Technologies
TT
$100B
| $666K | 0.05% |
+1,710
| New | +$707K |
|
360
Philip Morris
PM
$297B
| $661K | 0.05% |
4,123
| – | – |
|
361
GXO Logistics
GXO
$5.77B
| $660K | 0.05% |
+12,534
| New | +$659K |
|
362
Intercontinental Exchange
ICE
$85.6B
| $657K | 0.05% |
4,057
-298
| -7% | -$46.7K |
|
|
USAR
363
USA Rare Earth Inc
USAR
$3.66B
| $657K | 0.05% |
+55,212
| New | +$1.05M |
|
364
Clearfield
CLFD
$411M
| $656K | 0.05% |
22,509
-135
| -0.6% | -$4.34K |
|
365
Arcturus Therapeutics
ARCT
$164M
| $652K | 0.05% |
+106,400
| New | +$1.15M |
|
366
Sanmina
SANM
$9.95B
| $652K | 0.05% |
+4,344
| New | +$641K |
|
|
LINE
367
Lineage Inc
LINE
$9.65B
| $647K | 0.05% |
18,474
+1,435
| +8% | +$53K |
|
368
Cogent Biosciences
COGT
$6.65B
| $643K | 0.05% |
+18,108
| New | +$509K |
|
369
Arthur J. Gallagher & Co
AJG
$64.1B
| $642K | 0.05% |
2,482
-6,118
| -71% | -$1.62M |
|
370
American Water Works
AWK
$26.7B
| $641K | 0.05% |
4,912
-669
| -12% | -$89.4K |
|
371
Gossamer Bio
GOSS
$82.9M
| $637K | 0.05% |
205,639
+73,087
| +55% | +$209K |
|
372
AMC Entertainment Holdings
AMC
$2.52B
| $634K | 0.05% |
406,429
+277,644
| +216% | +$662K |
|
373
3M
MMM
$90.9B
| $629K | 0.05% |
+3,927
| New | +$642K |
|
374
Mondelez International
MDLZ
$79.5B
| $621K | 0.05% |
+11,541
| New | +$664K |
|
375
Corteva
CTVA
$52.6B
| $618K | 0.05% |
+9,227
| New | +$597K |
|
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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.