Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Amazon
AMZN
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
OTLY
726
Oatly Group
OTLY
$528M
| $242K | ﹤0.01% |
6,961
+2,003
| +40% | +$69.6K |
|
727
Direxion Daily Technology Bear 3x Shares
TECS
$51.6M
| $242K | ﹤0.01% |
599
-1,557
| -72% | -$629K |
|
728
Beam Global
BEEM
$42.9M
| $241K | ﹤0.01% |
13,832
+13,036
| +1,638% | +$227K |
|
729
Diamondback Energy
FANG
$40.1B
| $239K | ﹤0.01% |
1,750
+1,740
| +17,400% | +$238K |
|
730
Getty Images
GETY
$813M
| $239K | ﹤0.01% |
43,125
+43,024
| +42,598% | +$238K |
|
731
Altisource Portfolio Solutions
ASPS
$124M
| $238K | ﹤0.01% |
3,149
+998
| +46% | +$75.4K |
|
732
CRISPR Therapeutics
CRSP
$5.08B
| $238K | ﹤0.01% |
5,858
+3,518
| +150% | +$143K |
|
733
ARK Autonomous Technology & Robotics ETF
ARKQ
$1.33B
| $236K | ﹤0.01% |
+5,769
| New | +$236K |
|
734
FuelCell Energy
FCEL
$209M
| $236K | ﹤0.01% |
2,840
-10,987
| -79% | -$913K |
|
735
Sprott Uranium Miners ETF
URNM
$1.74B
| $236K | ﹤0.01% |
7,447
-3,283
| -31% | -$104K |
|
736
Atomera
ATOM
$103M
| $235K | ﹤0.01% |
37,886
+21,674
| +134% | +$134K |
|
737
Beam Therapeutics
BEAM
$2.18B
| $235K | ﹤0.01% |
+6,027
| New | +$235K |
|
738
SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$2.73B
| $234K | ﹤0.01% |
9,580
+6,388
| +200% | +$156K |
|
739
Advanced Micro Devices
AMD
$253B
| $233K | ﹤0.01% |
3,598
+1,264
| +54% | +$81.9K |
|
740
Frontline
FRO
$5.12B
| $233K | ﹤0.01% |
19,218
+18,159
| +1,715% | +$220K |
|
741
Argan
AGX
$3.21B
| $232K | ﹤0.01% |
6,307
+5,841
| +1,253% | +$215K |
|
742
Annexon
ANNX
$280M
| $231K | ﹤0.01% |
+44,760
| New | +$231K |
|
743
Mohawk Industries
MHK
$8.68B
| $231K | ﹤0.01% |
2,268
-2,589
| -53% | -$264K |
|
744
Telephone and Data Systems
TDS
$4.53B
| $231K | ﹤0.01% |
22,040
+21,281
| +2,804% | +$223K |
|
745
ProShares UltraPro Short Russell2000
SRTY
$77.6M
| $230K | ﹤0.01% |
4,264
-2,526
| -37% | -$136K |
|
|
JBGS
746
JBG SMITH
JBGS
$1.44B
| $228K | ﹤0.01% |
12,017
+11,929
| +13,556% | +$226K |
|
747
Extreme Networks
EXTR
$3.02B
| $227K | ﹤0.01% |
12,439
+1,562
| +14% | +$28.5K |
|
748
NatWest
NWG
$58B
| $227K | ﹤0.01% |
35,292
+8,937
| +34% | +$57.5K |
|
749
Arcos Dorados Holdings
ARCO
$1.49B
| $226K | ﹤0.01% |
+27,079
| New | +$226K |
|
750
Mobileye
MBLY
$11.5B
| $226K | ﹤0.01% |
+6,464
| New | +$226K |
|