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 | |
|---|---|---|---|---|---|---|
|
BBBY
726
DELISTED
Bed Bath & Beyond Inc
BBBY
| $577K | ﹤0.01% |
39,600
-114,838
| -74% | -$1.67M |
|
727
Crinetics Pharmaceuticals
CRNX
$3.3B
| $576K | ﹤0.01% |
+20,280
| New | +$576K |
|
728
Genesco
GCO
$355M
| $572K | ﹤0.01% |
8,924
+6,090
| +215% | +$390K |
|
729
Chewy
CHWY
$14.5B
| $570K | ﹤0.01% |
9,675
-73,427
| -88% | -$4.33M |
|
730
BlackBerry
BB
$2.25B
| $567K | ﹤0.01% |
60,728
-569,819
| -90% | -$5.32M |
|
731
Xerox
XRX
$456M
| $563K | ﹤0.01% |
24,904
+2,371
| +11% | +$53.6K |
|
732
Lemonade
LMND
$3.63B
| $560K | ﹤0.01% |
13,314
-14,725
| -53% | -$619K |
|
|
IS
733
DELISTED
ironSource Ltd.
IS
| $558K | ﹤0.01% |
72,136
-55,955
| -44% | -$433K |
|
734
EyePoint Pharmaceuticals
EYPT
$934M
| $551K | ﹤0.01% |
45,096
+7,619
| +20% | +$93.1K |
|
735
CVR Partners
UAN
$903M
| $548K | ﹤0.01% |
6,636
-6,603
| -50% | -$545K |
|
736
Energy Fuels
UUUU
$2.91B
| $547K | ﹤0.01% |
71,691
+30,592
| +74% | +$233K |
|
737
Lamar Advertising Co
LAMR
$12.8B
| $546K | ﹤0.01% |
+4,509
| New | +$546K |
|
738
Curis
CRIS
$22.4M
| $545K | ﹤0.01% |
5,734
+3,234
| +129% | +$307K |
|
739
Bandwidth Inc
BAND
$458M
| $543K | ﹤0.01% |
+7,567
| New | +$543K |
|
740
Iron Mountain
IRM
$28.8B
| $541K | ﹤0.01% |
+10,351
| New | +$541K |
|
|
TBHC
741
The Brand House Collective, Inc. Common Stock
TBHC
$44.2M
| $541K | ﹤0.01% |
36,252
+18,301
| +102% | +$273K |
|
742
Solid Power
SLDP
$645M
| $534K | ﹤0.01% |
+61,114
| New | +$534K |
|
|
ENDP
743
DELISTED
Endo International plc
ENDP
| $533K | ﹤0.01% |
+141,985
| New | +$533K |
|
744
Celsius Holdings
CELH
$14.5B
| $532K | ﹤0.01% |
+21,408
| New | +$532K |
|
745
Phillips 66
PSX
$53.1B
| $532K | ﹤0.01% |
7,352
-24,969
| -77% | -$1.81M |
|
|
HBP
746
DELISTED
Huttig Building Products, Inc.
HBP
| $529K | ﹤0.01% |
+47,800
| New | +$529K |
|
|
LHDX
747
DELISTED
Lucira Health, Inc. Common Stock
LHDX
| $524K | ﹤0.01% |
60,932
+60,889
| +141,602% | +$524K |
|
748
Alpha Metallurgical Resources
AMR
$1.85B
| $523K | ﹤0.01% |
+8,570
| New | +$523K |
|
749
Banco Bradesco
BBD
$33B
| $522K | ﹤0.01% |
168,090
+65,468
| +64% | +$203K |
|
|
CTEV
750
Claritev Corporation
CTEV
$1.04B
| $522K | ﹤0.01% |
+2,951
| New | +$522K |
|