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 |
Alphabet (Google) Class C
GOOG
|
$41.4M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
$12.3M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 4 |
Alibaba
BABA
|
$9.66M |
| 5 |
Intel
INTC
|
$9.11M |
Top Sells
| 1 |
Apple
AAPL
|
$36.8M |
| 2 |
Gilead Sciences
GILD
|
$31.2M |
| 3 |
Booking.com
BKNG
|
$29M |
| 4 |
Amazon
AMZN
|
$25.6M |
| 5 |
Baidu
BIDU
|
$12.9M |
Sector Composition
| 1 | Communication Services | 13.31% |
| 2 | Consumer Discretionary | 13.07% |
| 3 | Healthcare | 12.41% |
| 4 | Technology | 11.91% |
| 5 | Financials | 8.28% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
FIG
126
DELISTED
Fortress Investment Group Llc
FIG
| $787K | 0.09% |
+97,551
| New | +$787K |
|
127
Invesco CurrencyShares Euro Currency Trust
FXE
$527M
| $764K | 0.09% |
+7,228
| New | +$764K |
|
128
Baxter International
BAX
$12.1B
| $760K | 0.09% |
11,098
+6,319
| +132% | +$433K |
|
129
Bausch Health
BHC
$2.72B
| $759K | 0.09% |
3,825
-11,788
| -76% | -$2.34M |
|
|
FRC
130
DELISTED
First Republic Bank
FRC
| $752K | 0.09% |
+13,175
| New | +$752K |
|
|
DFS
131
DELISTED
Discover Financial Services
DFS
| $746K | 0.09% |
+13,247
| New | +$746K |
|
132
BlackBerry
BB
$2.24B
| $744K | 0.09% |
+83,393
| New | +$744K |
|
133
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$820M
| $743K | 0.09% |
+78,913
| New | +$743K |
|
134
HP
HPQ
$26.8B
| $737K | 0.09% |
+23,680
| New | +$737K |
|
135
Stanley Black & Decker
SWK
$11.3B
| $736K | 0.09% |
+7,728
| New | +$736K |
|
|
SIAL
136
DELISTED
SIGMA - ALDRICH CORP
SIAL
| $736K | 0.09% |
+5,325
| New | +$736K |
|
|
RSX
137
DELISTED
VanEck Russia ETF
RSX
| $731K | 0.09% |
+42,947
| New | +$731K |
|
|
AGU
138
DELISTED
Agrium
AGU
| $731K | 0.09% |
+7,013
| New | +$731K |
|
139
Johnson & Johnson
JNJ
$429B
| $722K | 0.08% |
7,182
-13,406
| -65% | -$1.35M |
|
140
Esperion Therapeutics
ESPR
$490M
| $686K | 0.08% |
+7,410
| New | +$686K |
|
141
Starbucks
SBUX
$99.2B
| $681K | 0.08% |
+7,201
| New | +$681K |
|
142
NetApp
NTAP
$23.2B
| $667K | 0.08% |
+18,814
| New | +$667K |
|
143
PVH
PVH
$4.1B
| $664K | 0.08% |
6,240
+3,619
| +138% | +$385K |
|
144
Brookdale Senior Living
BKD
$1.81B
| $653K | 0.08% |
17,307
+15,375
| +796% | +$580K |
|
145
Cooper Companies
COO
$13.3B
| $625K | 0.07% |
+3,337
| New | +$625K |
|
|
GWR
146
DELISTED
Genesee & Wyoming Inc.
GWR
| $625K | 0.07% |
+6,484
| New | +$625K |
|
147
United Parcel Service
UPS
$72.3B
| $623K | 0.07% |
+6,432
| New | +$623K |
|
|
LXK
148
DELISTED
Lexmark Intl Inc
LXK
| $622K | 0.07% |
+14,700
| New | +$622K |
|
149
Hilton Worldwide
HLT
$64.7B
| $619K | 0.07% |
20,929
-2,119
| -9% | -$62.7K |
|
150
Southwest Airlines
LUV
$17B
| $610K | 0.07% |
+13,772
| New | +$610K |
|