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 |
Advanced Micro Devices
AMD
|
+$17.7M |
| 2 |
iShares MSCI EAFE ETF
EFA
|
+$10.1M |
| 3 |
NIO
NIO
|
+$7.66M |
| 4 |
Alibaba
BABA
|
+$7.54M |
| 5 |
Micron Technology
MU
|
+$6.73M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$101M |
| 2 |
SPDR Gold Trust
GLD
|
+$15.2M |
| 3 |
Amazon
AMZN
|
+$9.5M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
+$8.76M |
| 5 |
Technology Select Sector SPDR Fund
XLK
|
+$7.41M |
Sector Composition
| 1 | Technology | 18.66% |
| 2 | Consumer Discretionary | 14.99% |
| 3 | Communication Services | 10.06% |
| 4 | Healthcare | 9.68% |
| 5 | Financials | 9.59% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
976
The Beachbody Company, Inc. Class A Common Stock
BODI
$43.2M
| $380K | ﹤0.01% |
742
-257
| -26% | -$132K |
|
977
AllianceBernstein
AB
$4.23B
| $379K | ﹤0.01% |
8,119
| – | – |
|
978
Evolent Health
EVH
$1.07B
| $379K | ﹤0.01% |
17,976
| – | – |
|
979
iShares Preferred and Income Securities ETF
PFF
$14.7B
| $378K | ﹤0.01% |
9,644
-7,500
| -44% | -$294K |
|
980
CarGurus
CARG
$3.56B
| $376K | ﹤0.01% |
14,295
-600
| -4% | -$15.8K |
|
|
NIU
981
Niu Technologies
NIU
$324M
| $375K | ﹤0.01% |
11,666
+654
| +6% | +$21K |
|
982
Federal Realty Investment Trust
FRT
$8.72B
| $374K | ﹤0.01% |
3,170
-6
| -0.2% | -$708 |
|
|
FINV
983
FinVolution Group
FINV
$1.95B
| $373K | ﹤0.01% |
39,166
+283
| +0.7% | +$2.7K |
|
984
Century Aluminum
CENX
$2.16B
| $372K | ﹤0.01% |
29,573
-3,077
| -9% | -$38.7K |
|
|
PLYA
985
DELISTED
Playa Hotels & Resorts
PLYA
| $372K | ﹤0.01% |
50,802
| – | – |
|
|
API
986
Agora
API
$344M
| $371K | ﹤0.01% |
8,960
-2,300
| -20% | -$95.2K |
|
987
ZK International Group
ZKIN
$12.4M
| $370K | ﹤0.01% |
12,514
+14
| +0.1% | +$414 |
|
|
INFO
988
DELISTED
IHS Markit Ltd. Common Shares
INFO
| $370K | ﹤0.01% |
3,274
-24
| -0.7% | -$2.71K |
|
989
ArcBest
ARCB
$1.65B
| $369K | ﹤0.01% |
6,137
+449
| +8% | +$27K |
|
990
Cadiz
CDZI
$298M
| $369K | ﹤0.01% |
25,616
+2,500
| +11% | +$36K |
|
991
Transocean
RIG
$3.06B
| $368K | ﹤0.01% |
74,441
+2,706
| +4% | +$13.4K |
|
992
Autoliv
ALV
$9.74B
| $367K | ﹤0.01% |
3,751
| – | – |
|
993
Huntington Bancshares
HBAN
$25.8B
| $367K | ﹤0.01% |
25,453
+1,013
| +4% | +$14.6K |
|
994
Invesco BuyBack Achievers ETF
PKW
$1.48B
| $367K | ﹤0.01% |
4,050
+300
| +8% | +$27.2K |
|
995
Middleby
MIDD
$7.1B
| $366K | ﹤0.01% |
2,117
| – | – |
|
|
HUT
996
Hut 8
HUT
$3.32B
| $364K | ﹤0.01% |
15,387
-1,179
| -7% | -$27.9K |
|
997
iShares Core MSCI EAFE ETF
IEFA
$153B
| $364K | ﹤0.01% |
4,856
| – | – |
|
|
ETWO
998
DELISTED
E2open Parent Holdings
ETWO
| $363K | ﹤0.01% |
32,454
-2,125
| -6% | -$23.8K |
|
|
TWOU
999
DELISTED
2U, Inc.
TWOU
| $363K | ﹤0.01% |
293
+3
| +1% | +$3.72K |
|
|
QTT
1000
DELISTED
Qutoutiao Inc. American Depositary Shares
QTT
| $363K | ﹤0.01% |
19,885
| – | – |
|