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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 | |
|---|---|---|---|---|---|---|
551
The Honest Company
HNST
$402M
| $28.1K | ﹤0.01% |
10,891
-26,198
| -71% | -$80.3K |
|
552
ProQR Therapeutics
PRQR
$243M
| $26.5K | ﹤0.01% |
13,107
| – | – |
|
553
Humacyte
HUMA
$176M
| $24.8K | ﹤0.01% |
+25,866
| New | +$36.6K |
|
554
Quantum-Si Incorporated
QSI
$155M
| $24.2K | ﹤0.01% |
+21,995
| New | +$35.8K |
|
|
NXXT
555
NextNRG Inc
NXXT
$45.6M
| $24K | ﹤0.01% |
+16,541
| New | +$28.5K |
|
556
Rackspace Technology
RXT
$1.05B
| $10.5K | ﹤0.01% |
+10,810
| New | +$13.6K |
|
557
Absci
ABSI
$1.32B
| – | – |
-48,859
| Closed | -$149K |
|
558
Abbott
ABT
$183B
| – | – |
-2,095
| Closed | -$281K |
|
559
Adobe
ADBE
$99.5B
| – | – |
-634
| Closed | -$224K |
|
560
ADC Therapeutics
ADCT
$134M
| – | – |
-13,131
| Closed | -$52.5K |
|
561
Automatic Data Processing
ADP
$106B
| – | – |
-12,957
| Closed | -$3.8M |
|
562
Adaptive Biotechnologies
ADPT
$3.59B
| – | – |
-25,991
| Closed | -$389K |
|
563
American Financial Group
AFG
$11.8B
| – | – |
-1,499
| Closed | -$218K |
|
564
Albany International
AIN
$2.11B
| – | – |
-8,494
| Closed | -$453K |
|
565
AirSculpt Technologies
AIRS
$339M
| – | – |
-14,983
| Closed | -$120K |
|
|
AISP
566
Airship AI Holdings
AISP
$60.3M
| – | – |
-43,691
| Closed | -$226K |
|
567
Akebia Therapeutics
AKBA
$354M
| – | – |
-15,633
| Closed | -$42.7K |
|
|
AKRO
568
DELISTED
Akero Therapeutics
AKRO
| – | – |
-45,838
| Closed | -$2.18M |
|
569
Alkami Technology
ALKT
$1.94B
| – | – |
-9,558
| Closed | -$237K |
|
570
Allogene Therapeutics
ALLO
$649M
| – | – |
-85,930
| Closed | -$107K |
|
571
Ambarella
AMBA
$3.77B
| – | – |
-68,487
| Closed | -$5.65M |
|
572
Amcor
AMCR
$20.8B
| – | – |
-4,264
| Closed | -$174K |
|
573
American Homes 4 Rent
AMH
$12B
| – | – |
-34,654
| Closed | -$1.15M |
|
574
Amprius Technologies
AMPX
$1.36B
| – | – |
-10,472
| Closed | -$110K |
|
575
Annexon
ANNX
$834M
| – | – |
-30,453
| Closed | -$92.9K |
|
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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.