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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
926
Oshkosh
OSK
$8.88B
| $160K | ﹤0.01% |
+1,710
| New | +$160K |
|
|
TE
927
T1 Energy Inc.
TE
$293M
| $160K | ﹤0.01% |
127,667
+50,792
| +66% | +$63.7K |
|
928
Atkore
ATKR
$2.09B
| $159K | ﹤0.01% |
+2,657
| New | +$159K |
|
|
KREF
929
KKR Real Estate Finance Trust
KREF
$638M
| $159K | ﹤0.01% |
14,776
-9,123
| -38% | -$98.2K |
|
930
ICL Group
ICL
$7.99B
| $158K | ﹤0.01% |
27,784
-48,220
| -63% | -$274K |
|
|
JKS
931
JinkoSolar
JKS
$1.22B
| $158K | ﹤0.01% |
8,529
-4,918
| -37% | -$91.1K |
|
932
MasTec
MTZ
$14.9B
| $158K | ﹤0.01% |
1,360
-5,060
| -79% | -$588K |
|
933
Sangamo Therapeutics
SGMO
$160M
| $158K | ﹤0.01% |
242,294
+49,756
| +26% | +$32.4K |
|
934
Aemetis
AMTX
$137M
| $156K | ﹤0.01% |
89,830
+32,207
| +56% | +$55.9K |
|
935
Everest Group
EG
$14.6B
| $156K | ﹤0.01% |
+430
| New | +$156K |
|
936
Nano X Imaging
NNOX
$254M
| $156K | ﹤0.01% |
+31,321
| New | +$156K |
|
|
FFAI
937
Faraday Future Intelligent Electric Inc. Common Stock
FFAI
$276M
| $156K | ﹤0.01% |
138,833
-133,431
| -49% | -$150K |
|
938
Editas Medicine
EDIT
$244M
| $155K | ﹤0.01% |
134,167
+95,525
| +247% | +$110K |
|
939
Gannett
GCI
$632M
| $153K | ﹤0.01% |
53,079
-153,742
| -74% | -$443K |
|
940
Westrock Coffee
WEST
$519M
| $153K | ﹤0.01% |
+21,207
| New | +$153K |
|
941
BrightSpring Health Services
BTSG
$4.96B
| $153K | ﹤0.01% |
8,508
+8,074
| +1,860% | +$145K |
|
942
Dayforce
DAY
$10.9B
| $152K | ﹤0.01% |
2,613
-54
| -2% | -$3.14K |
|
943
Buckle
BKE
$3.15B
| $151K | ﹤0.01% |
+3,949
| New | +$151K |
|
944
Valero Energy
VLO
$49B
| $151K | ﹤0.01% |
1,146
-14,652
| -93% | -$1.93M |
|
|
LOGC
945
DELISTED
ContextLogic
LOGC
| $151K | ﹤0.01% |
21,687
-77,815
| -78% | -$542K |
|
946
Great Lakes Dredge & Dock
GLDD
$834M
| $150K | ﹤0.01% |
+17,349
| New | +$150K |
|
947
QuinStreet
QNST
$939M
| $150K | ﹤0.01% |
+8,449
| New | +$150K |
|
948
Banco Macro
BMA
$2.95B
| $149K | ﹤0.01% |
+1,980
| New | +$149K |
|
949
Cadiz
CDZI
$312M
| $148K | ﹤0.01% |
+50,829
| New | +$148K |
|
950
HCI Group
HCI
$2.36B
| $148K | ﹤0.01% |
+995
| New | +$148K |
|