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 |
Apple
AAPL
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
751
Velocity Financial
VEL
$718M
| $363K | ﹤0.01% |
+18,568
| New | +$363K |
|
752
AstraZeneca
AZN
$252B
| $360K | ﹤0.01% |
5,508
-25,784
| -82% | -$1.69M |
|
753
Listed Funds Trust Roundhill Magnificent Seven ETF
MAGS
$2.77B
| $360K | ﹤0.01% |
6,628
+2,564
| +63% | +$139K |
|
754
Marten Transport
MRTN
$948M
| $358K | ﹤0.01% |
22,972
+21,373
| +1,337% | +$333K |
|
755
RCI Hospitality Holdings
RICK
$298M
| $356K | ﹤0.01% |
6,201
-1,770
| -22% | -$102K |
|
|
TRTX
756
TPG RE Finance Trust
TRTX
$747M
| $356K | ﹤0.01% |
41,948
+25,159
| +150% | +$214K |
|
757
Fossil Group
FOSL
$159M
| $355K | ﹤0.01% |
212,862
+121,966
| +134% | +$203K |
|
|
ETHT
758
ProShares Ultra Ether ETF
ETHT
$587M
| $355K | ﹤0.01% |
3,260
+3,198
| +5,158% | +$348K |
|
759
Invesco Mortgage Capital
IVR
$521M
| $354K | ﹤0.01% |
44,085
-8,276
| -16% | -$66.5K |
|
|
CTEV
760
Claritev Corporation
CTEV
$1.19B
| $352K | ﹤0.01% |
23,861
+23,688
| +13,692% | +$349K |
|
|
NNE
761
Nano Nuclear Energy
NNE
$1.35B
| $351K | ﹤0.01% |
+14,125
| New | +$351K |
|
762
Jacobs Solutions
J
$17.2B
| $350K | ﹤0.01% |
2,649
-420
| -14% | -$55.5K |
|
763
Option Care Health
OPCH
$4.75B
| $350K | ﹤0.01% |
+15,120
| New | +$350K |
|
764
Kinetik
KNTK
$2.58B
| $349K | ﹤0.01% |
+6,164
| New | +$349K |
|
765
Telesat
TSAT
$312M
| $347K | ﹤0.01% |
+21,146
| New | +$347K |
|
766
Ingles Markets
IMKTA
$1.31B
| $343K | ﹤0.01% |
5,338
+5,166
| +3,003% | +$332K |
|
|
ALTM
767
DELISTED
Arcadium Lithium plc
ALTM
| $343K | ﹤0.01% |
66,953
-146,088
| -69% | -$748K |
|
768
Tradr TSLA Bear Daily ETF
TSLQ
$277M
| $341K | ﹤0.01% |
12,770
+12,628
| +8,893% | +$337K |
|
769
Solid Power
SLDP
$685M
| $340K | ﹤0.01% |
180,282
+152,326
| +545% | +$287K |
|
|
ENFN
770
DELISTED
Enfusion, Inc.
ENFN
| $340K | ﹤0.01% |
+33,025
| New | +$340K |
|
771
MDU Resources
MDU
$3.28B
| $339K | ﹤0.01% |
+18,857
| New | +$339K |
|
772
Corporacion America
CAAP
$3.09B
| $337K | ﹤0.01% |
18,087
-3,205
| -15% | -$59.7K |
|
773
BGC Group
BGC
$4.76B
| $335K | ﹤0.01% |
36,976
+3,630
| +11% | +$32.9K |
|
774
Legend Biotech
LEGN
$6.32B
| $335K | ﹤0.01% |
+10,310
| New | +$335K |
|
775
StepStone Group
STEP
$4.79B
| $335K | ﹤0.01% |
5,802
+5,730
| +7,958% | +$331K |
|