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
|
+$102M |
| 2 |
TSMC
TSM
|
+$29.6M |
| 3 |
JPMorgan Chase
JPM
|
+$21.9M |
| 4 |
Boeing
BA
|
+$18.8M |
| 5 |
Target
TGT
|
+$13.5M |
Top Sells
| 1 |
SPDR Gold Trust
GLD
|
+$94.2M |
| 2 |
Tesla
TSLA
|
+$91.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$81.5M |
| 4 |
NVIDIA
NVDA
|
+$60M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| 1 | Consumer Discretionary | 21.73% |
| 2 | Technology | 16.48% |
| 3 | Healthcare | 9.06% |
| 4 | Financials | 8.3% |
| 5 | Communication Services | 7.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
576
iShares Expanded Tech-Software Sector ETF
IGV
$10.3B
| $429K | ﹤0.01% |
6,900
-65,615
| -90% | -$4.08M |
|
577
Sinclair Inc
SBGI
$933M
| $428K | ﹤0.01% |
22,258
+9,527
| +75% | +$183K |
|
578
Bread Financial
BFH
$2.99B
| $425K | ﹤0.01% |
12,708
-6,468
| -34% | -$216K |
|
579
Builders FirstSource
BLDR
$15.5B
| $425K | ﹤0.01% |
13,045
+511
| +4% | +$16.6K |
|
|
RAD
580
DELISTED
Rite Aid Corporation
RAD
| $420K | ﹤0.01% |
44,350
+23,241
| +110% | +$220K |
|
581
Itaú Unibanco
ITUB
$75.9B
| $418K | ﹤0.01% |
140,447
-11,322
| -7% | -$33.7K |
|
582
El Pollo Loco
LOCO
$303M
| $417K | ﹤0.01% |
25,759
+1,964
| +8% | +$31.8K |
|
583
SelectQuote
SLQT
$339M
| $416K | ﹤0.01% |
20,549
+19,663
| +2,219% | +$398K |
|
584
AGCO
AGCO
$8.02B
| $414K | ﹤0.01% |
+5,583
| New | +$414K |
|
|
CTB
585
DELISTED
Cooper Tire & Rubber Co.
CTB
| $413K | ﹤0.01% |
+13,055
| New | +$413K |
|
586
Digital Turbine
APPS
$480M
| $412K | ﹤0.01% |
12,614
-4,285
| -25% | -$140K |
|
587
FuelCell Energy
FCEL
$130M
| $412K | ﹤0.01% |
6,424
+2,359
| +58% | +$151K |
|
588
Futu Holdings
FUTU
$25.3B
| $412K | ﹤0.01% |
+14,415
| New | +$412K |
|
589
Synchrony
SYF
$27.8B
| $412K | ﹤0.01% |
+15,745
| New | +$412K |
|
590
Sprout Social
SPT
$816M
| $409K | ﹤0.01% |
10,639
+9,314
| +703% | +$358K |
|
591
Iovance Biotherapeutics
IOVA
$861M
| $406K | ﹤0.01% |
+12,359
| New | +$406K |
|
592
Helmerich & Payne
HP
$2.07B
| $404K | ﹤0.01% |
27,617
+26,009
| +1,617% | +$380K |
|
593
Adient
ADNT
$1.92B
| $402K | ﹤0.01% |
23,214
+4,157
| +22% | +$72K |
|
594
Manulife Financial
MFC
$52.4B
| $402K | ﹤0.01% |
28,916
+25,539
| +756% | +$355K |
|
|
ENLC
595
DELISTED
ENLINK MIDSTREAM, LLC
ENLC
| $402K | ﹤0.01% |
+171,140
| New | +$402K |
|
|
GWPH
596
DELISTED
GW Pharmaceuticals Plc American Depositary Shares
GWPH
| $401K | ﹤0.01% |
4,127
+4,027
| +4,027% | +$391K |
|
|
LORL
597
DELISTED
Loral Space and Communications, Inc.
LORL
| $397K | ﹤0.01% |
21,725
+9,527
| +78% | +$174K |
|
598
WEC Energy
WEC
$35.2B
| $396K | ﹤0.01% |
+4,091
| New | +$396K |
|
599
Opendoor
OPEN
$4.31B
| $395K | ﹤0.01% |
+20,846
| New | +$395K |
|
600
ProShares UltraShort Real Estate
SRS
$22.3M
| $393K | ﹤0.01% |
3,324
+1,169
| +54% | +$138K |
|