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
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
751
InfraCap MLP ETF
AMZA
$404M
| $212K | ﹤0.01% |
2,856
+1,908
| +201% | +$142K |
|
752
iShares US Home Construction ETF
ITB
$3.32B
| $212K | ﹤0.01% |
6,011
-6,891
| -53% | -$243K |
|
753
FirstEnergy
FE
$25B
| $211K | ﹤0.01% |
5,701
-4,162
| -42% | -$154K |
|
|
KL
754
DELISTED
Kirkland Lake Gold Ltd Ordinary
KL
| $211K | ﹤0.01% |
11,157
+7,528
| +207% | +$142K |
|
755
Utilities Select Sector SPDR Fund
XLU
$21B
| $210K | ﹤0.01% |
+4,000
| New | +$210K |
|
|
ENDP
756
DELISTED
Endo International plc
ENDP
| $210K | ﹤0.01% |
12,503
-22,625
| -64% | -$380K |
|
757
Comstock Resources
CRK
$4.64B
| $209K | ﹤0.01% |
+24,969
| New | +$209K |
|
758
Knight Transportation
KNX
$6.95B
| $208K | ﹤0.01% |
6,046
-8,095
| -57% | -$278K |
|
759
Energous
WATT
$11.2M
| $208K | ﹤0.01% |
34
+30
| +750% | +$184K |
|
|
CNR
760
Core Natural Resources, Inc.
CNR
$3.73B
| $208K | ﹤0.01% |
5,117
+1,120
| +28% | +$45.5K |
|
|
LMNX
761
DELISTED
Luminex Corp
LMNX
| $207K | ﹤0.01% |
6,846
+6,721
| +5,377% | +$203K |
|
762
JPMorgan Chase
JPM
$838B
| $206K | ﹤0.01% |
1,828
-99,965
| -98% | -$11.3M |
|
|
LFC
763
DELISTED
China Life Insurance Company Ltd.
LFC
| $206K | ﹤0.01% |
18,110
+4,468
| +33% | +$50.8K |
|
764
Credit Acceptance
CACC
$5.89B
| $205K | ﹤0.01% |
469
-210
| -31% | -$91.8K |
|
765
PetMed Express
PETS
$58.5M
| $205K | ﹤0.01% |
6,237
+5,019
| +412% | +$165K |
|
|
EMWP
766
DELISTED
Eros Media World PLC
EMWP
| $205K | ﹤0.01% |
853
+295
| +53% | +$70.9K |
|
|
ATRS
767
DELISTED
Antares Pharma, Inc.
ATRS
| $205K | ﹤0.01% |
+61,122
| New | +$205K |
|
768
MakeMyTrip
MMYT
$9.62B
| $204K | ﹤0.01% |
7,455
-5,814
| -44% | -$159K |
|
769
VeriSign
VRSN
$27B
| $204K | ﹤0.01% |
+1,277
| New | +$204K |
|
770
Altria Group
MO
$112B
| $203K | ﹤0.01% |
+3,382
| New | +$203K |
|
771
Alaunos Therapeutics
TCRT
$5.23M
| $203K | ﹤0.01% |
425
-4
| -0.9% | -$1.91K |
|
|
JKS
772
JinkoSolar
JKS
$1.23B
| $202K | ﹤0.01% |
18,790
+18,710
| +23,388% | +$201K |
|
|
SN
773
DELISTED
Sanchez Energy Corporation
SN
| $202K | ﹤0.01% |
87,971
+82,638
| +1,550% | +$190K |
|
774
Kodak
KODK
$482M
| $200K | ﹤0.01% |
+64,553
| New | +$200K |
|
775
New Mountain Finance
NMFC
$1.12B
| $198K | ﹤0.01% |
14,735
+11,273
| +326% | +$151K |
|