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 | |
|---|---|---|---|---|---|---|
601
Unity
U
$18.2B
| $392K | ﹤0.01% |
+4,492
| New | +$392K |
|
602
Celsius Holdings
CELH
$14.5B
| $391K | ﹤0.01% |
+51,666
| New | +$391K |
|
603
Garmin
GRMN
$45.4B
| $390K | ﹤0.01% |
+4,114
| New | +$390K |
|
|
LX
604
LexinFintech Holdings
LX
$973M
| $389K | ﹤0.01% |
56,856
+56,851
| +1,137,020% | +$389K |
|
605
ProShares Ultra FTSE China 50 of PROSHARES TRUST
XPP
$19.4M
| $388K | ﹤0.01% |
+6,708
| New | +$388K |
|
606
Banco Bradesco
BBD
$33B
| $386K | ﹤0.01% |
136,430
+42,388
| +45% | +$120K |
|
|
CNR
607
DELISTED
Cornerstone Building Brands, Inc.
CNR
| $386K | ﹤0.01% |
48,416
+42,030
| +658% | +$335K |
|
608
Green Plains
GPRE
$635M
| $385K | ﹤0.01% |
24,910
-9,106
| -27% | -$141K |
|
609
Amplify Junior Silver Miners ETF
SILJ
$2.19B
| $385K | ﹤0.01% |
27,904
-571
| -2% | -$7.88K |
|
610
Anavex Life Sciences
AVXL
$762M
| $384K | ﹤0.01% |
+84,397
| New | +$384K |
|
611
Invesco Mortgage Capital
IVR
$515M
| $384K | ﹤0.01% |
14,172
+14,167
| +283,340% | +$384K |
|
612
ProShares Ultra NASDAQ Biotechnology
BIB
$55.3M
| $380K | ﹤0.01% |
5,444
+1,129
| +26% | +$78.8K |
|
613
Coca-Cola
KO
$292B
| $380K | ﹤0.01% |
7,700
-178,329
| -96% | -$8.8M |
|
614
Direxion Daily S&P Oil & Gas Exp & Prod Bull 2X Shares
GUSH
$249M
| $377K | ﹤0.01% |
70,352
-113,648
| -62% | -$609K |
|
615
AES
AES
$9.06B
| $375K | ﹤0.01% |
+20,713
| New | +$375K |
|
616
Universal Display
OLED
$6.52B
| $375K | ﹤0.01% |
2,076
-4,851
| -70% | -$876K |
|
617
SiriusXM
SIRI
$8.02B
| $375K | ﹤0.01% |
7,012
+2,127
| +44% | +$114K |
|
618
Ambac
AMBC
$415M
| $373K | ﹤0.01% |
29,254
+13,844
| +90% | +$177K |
|
619
DHT Holdings
DHT
$1.94B
| $372K | ﹤0.01% |
+72,112
| New | +$372K |
|
|
MITT
620
AG Mortgage Investment Trust
MITT
$245M
| $372K | ﹤0.01% |
+44,936
| New | +$372K |
|
621
SL Green Realty
SLG
$4.29B
| $370K | ﹤0.01% |
8,262
+4,009
| +94% | +$180K |
|
622
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$3.45B
| $369K | ﹤0.01% |
8,750
-121
| -1% | -$5.1K |
|
|
INVX
623
Innovex International, Inc.
INVX
$1.15B
| $368K | ﹤0.01% |
+14,896
| New | +$368K |
|
624
British American Tobacco
BTI
$123B
| $366K | ﹤0.01% |
10,141
+8,910
| +724% | +$322K |
|
625
Corning
GLW
$64.2B
| $366K | ﹤0.01% |
11,295
-28,610
| -72% | -$927K |
|