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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
976
Everest Group
EG
$14.3B
| $306K | ﹤0.01% |
1,118
+797
| +248% | +$218K |
|
|
HIVE
977
HIVE Digital Technologies
HIVE
$776M
| $306K | ﹤0.01% |
+23,250
| New | +$306K |
|
978
Merit Medical Systems
MMSI
$5.34B
| $306K | ﹤0.01% |
+4,914
| New | +$306K |
|
979
Teradyne
TER
$18.7B
| $306K | ﹤0.01% |
1,875
-12,708
| -87% | -$2.07M |
|
|
RADA
980
DELISTED
Rada Electronic Industries Ltd
RADA
| $305K | ﹤0.01% |
32,422
-81,860
| -72% | -$770K |
|
981
Root
ROOT
$1.47B
| $304K | ﹤0.01% |
5,452
-695
| -11% | -$38.8K |
|
982
Manchester United
MANU
$2.81B
| $303K | ﹤0.01% |
21,331
-42,974
| -67% | -$610K |
|
|
TGB
983
Taseko Mines
TGB
$1.11B
| $303K | ﹤0.01% |
147,922
+51,535
| +53% | +$106K |
|
|
REGI
984
DELISTED
Renewable Energy Group, Inc.
REGI
| $303K | ﹤0.01% |
+7,154
| New | +$303K |
|
985
DigitalOcean
DOCN
$3.11B
| $302K | ﹤0.01% |
+3,766
| New | +$302K |
|
986
Gerdau
GGB
$6.17B
| $302K | ﹤0.01% |
+77,484
| New | +$302K |
|
|
CCEC
987
Capital Clean Energy Carriers Corp. Common Share
CCEC
$1.25B
| $302K | ﹤0.01% |
18,759
-25,539
| -58% | -$411K |
|
988
Clearwater Paper
CLW
$342M
| $301K | ﹤0.01% |
8,213
+4,980
| +154% | +$183K |
|
989
TransDigm Group
TDG
$72.5B
| $300K | ﹤0.01% |
472
-1,071
| -69% | -$681K |
|
990
Atea Pharmaceuticals
AVIR
$250M
| $299K | ﹤0.01% |
+33,535
| New | +$299K |
|
991
Perion Network
PERI
$415M
| $299K | ﹤0.01% |
12,453
-32,606
| -72% | -$783K |
|
|
XXII
992
22nd Century Group
XXII
$6.81M
| – | – |
0
| – | -$254K |
|
|
ONC
993
BeOne Medicines Ltd. American Depositary Shares
ONC
$34.5B
| $296K | ﹤0.01% |
1,093
+585
| +115% | +$158K |
|
994
Adicet Bio
ACET
$66.9M
| $295K | ﹤0.01% |
16,895
+15,695
| +1,308% | +$274K |
|
|
CCMP
995
DELISTED
CMC Materials, Inc. Common Stock
CCMP
| $295K | ﹤0.01% |
+1,541
| New | +$295K |
|
|
VLRS
996
Controladora Vuela Compañía de Aviación
VLRS
$712M
| $294K | ﹤0.01% |
16,379
-1,750
| -10% | -$31.4K |
|
|
CRON
997
Cronos Group
CRON
$969M
| $293K | ﹤0.01% |
74,892
-34,606
| -32% | -$135K |
|
998
Lithia Motors
LAD
$8.64B
| $293K | ﹤0.01% |
988
-3,968
| -80% | -$1.18M |
|
999
M&T Bank
MTB
$31B
| $293K | ﹤0.01% |
1,909
-388
| -17% | -$59.6K |
|
1000
Clearfield
CLFD
$456M
| $292K | ﹤0.01% |
+3,459
| New | +$292K |
|