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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 | |
|---|---|---|---|---|---|---|
|
GOOD
476
Gladstone Commercial Corp
GOOD
$604M
| $241K | 0.02% |
22,597
-30,075
| -57% | -$334K |
|
477
ASP Isotopes
ASPI
$521M
| $239K | 0.02% |
+44,661
| New | +$355K |
|
478
VanEck Semiconductor ETF
SMH
$68.5B
| $239K | 0.02% |
663
-18,894
| -97% | -$6.63M |
|
479
Nu Skin
NUS
$251M
| $237K | 0.02% |
+24,669
| New | +$255K |
|
480
GameStop
GME
$8.55B
| $236K | 0.02% |
+11,733
| New | +$263K |
|
481
Lumen
LUMN
$6.65B
| $232K | 0.02% |
+29,892
| New | +$246K |
|
482
Martin Marietta Materials
MLM
$32.6B
| $232K | 0.02% |
373
| – | – |
|
483
Tronox
TROX
$909M
| $230K | 0.02% |
55,112
+10,353
| +23% | +$39.4K |
|
484
State Street Energy Select Sector SPDR ETF
XLE
$38.5B
| $228K | 0.02% |
5,106
-148,654
| -97% | -$6.62M |
|
485
Nano X Imaging
NNOX
$76.6M
| $227K | 0.02% |
81,100
+22,340
| +38% | +$80.3K |
|
486
Archrock
AROC
$6.16B
| $226K | 0.02% |
8,689
-45,995
| -84% | -$1.14M |
|
487
Merck
MRK
$316B
| $226K | 0.02% |
2,147
-13,671
| -86% | -$1.28M |
|
488
Genuine Parts
GPC
$17.7B
| $226K | 0.02% |
1,835
-41,382
| -96% | -$5.36M |
|
489
Supernus Pharmaceuticals
SUPN
$2.67B
| $224K | 0.02% |
+4,516
| New | +$220K |
|
490
Medifast
MED
$108M
| $222K | 0.02% |
+20,802
| New | +$249K |
|
491
Dycom Industries
DY
$12.5B
| $222K | 0.02% |
+657
| New | +$207K |
|
492
Chefs' Warehouse
CHEF
$4.54B
| $220K | 0.02% |
+3,528
| New | +$212K |
|
493
Electronic Arts
EA
$53B
| $220K | 0.02% |
1,076
-172
| -14% | -$34.7K |
|
494
Biohaven
BHVN
$2.01B
| $219K | 0.02% |
+19,356
| New | +$240K |
|
495
Genco Shipping & Trading
GNK
$1.14B
| $216K | 0.02% |
+11,740
| New | +$206K |
|
496
Marten Transport
MRTN
$1.22B
| $216K | 0.02% |
+19,013
| New | +$202K |
|
497
Evolus
EOLS
$398M
| $216K | 0.02% |
+32,498
| New | +$220K |
|
498
Kosmos Energy
KOS
$1.51B
| $210K | 0.02% |
+231,275
| New | +$305K |
|
499
Azenta
AZTA
$1.38B
| $206K | 0.02% |
6,188
-4,307
| -41% | -$141K |
|
500
Vanguard FTSE Developed Markets ETF
VEA
$230B
| $204K | 0.02% |
3,267
-86,715
| -96% | -$5.31M |
|
Similar funds
SP
ELC
HRES
SRAIM
TCC
FCP
SC
BCP
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.