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 |
Alibaba
BABA
|
$48.9M |
| 2 |
Boeing
BA
|
$25.8M |
| 3 |
SPDR Gold Trust
GLD
|
$18.2M |
| 4 |
Biogen
BIIB
|
$15.8M |
| 5 |
FedEx
FDX
|
$13.6M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
$62.1M |
| 2 |
iShares Russell 2000 ETF
IWM
|
$36.4M |
| 3 |
Industrial Select Sector SPDR Fund
XLI
|
$17.5M |
| 4 |
Netflix
NFLX
|
$16.3M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$14.6M |
Sector Composition
| 1 | Consumer Discretionary | 16.74% |
| 2 | Technology | 16.32% |
| 3 | Healthcare | 12.17% |
| 4 | Industrials | 12.14% |
| 5 | Communication Services | 7.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
201
Sea Limited
SE
$112B
| $1.12M | ﹤0.01% |
36,325
+22,491
| +163% | +$696K |
|
202
CRA International
CRAI
$1.29B
| $1.11M | ﹤0.01% |
26,424
+3,128
| +13% | +$131K |
|
203
Green Plains
GPRE
$731M
| $1.1M | ﹤0.01% |
103,879
+88,172
| +561% | +$934K |
|
|
BFYT
204
DELISTED
Benefytt Technologies, Inc. Class A Common Stock
BFYT
| $1.1M | ﹤0.01% |
44,057
+33,238
| +307% | +$828K |
|
205
Keysight
KEYS
$28.7B
| $1.08M | ﹤0.01% |
+11,146
| New | +$1.08M |
|
206
TechnipFMC
FTI
$16.3B
| $1.08M | ﹤0.01% |
60,090
+58,324
| +3,303% | +$1.05M |
|
207
Healthpeak Properties
DOC
$12.5B
| $1.08M | ﹤0.01% |
30,205
+28,476
| +1,647% | +$1.01M |
|
208
Eagle Materials
EXP
$7.55B
| $1.08M | ﹤0.01% |
11,956
-9,480
| -44% | -$853K |
|
209
Liberty Global Class C
LBTYK
$4.14B
| $1.07M | ﹤0.01% |
45,139
-35,859
| -44% | -$852K |
|
|
NOAH
210
Noah Holdings
NOAH
$819M
| $1.07M | ﹤0.01% |
+36,716
| New | +$1.07M |
|
211
MGM Resorts International
MGM
$10.1B
| $1.07M | ﹤0.01% |
+38,651
| New | +$1.07M |
|
212
Novo Nordisk
NVO
$249B
| $1.07M | ﹤0.01% |
+41,408
| New | +$1.07M |
|
|
BBBY
213
DELISTED
Bed Bath & Beyond Inc
BBBY
| $1.06M | ﹤0.01% |
+100,015
| New | +$1.06M |
|
214
NovoCure
NVCR
$1.34B
| $1.06M | ﹤0.01% |
14,177
-4,090
| -22% | -$306K |
|
215
iShares Russell 2000 Value ETF
IWN
$11.9B
| $1.06M | ﹤0.01% |
8,872
-6,156
| -41% | -$735K |
|
|
HES
216
DELISTED
Hess
HES
| $1.06M | ﹤0.01% |
+17,472
| New | +$1.06M |
|
217
Lamar Advertising Co
LAMR
$13B
| $1.06M | ﹤0.01% |
12,899
+10,227
| +383% | +$837K |
|
|
DISH
218
DELISTED
DISH Network Corp.
DISH
| $1.05M | ﹤0.01% |
30,875
-26,345
| -46% | -$897K |
|
219
EQT Corp
EQT
$32.3B
| $1.04M | ﹤0.01% |
97,821
+81,335
| +493% | +$865K |
|
220
Ashland
ASH
$2.48B
| $1.03M | ﹤0.01% |
13,351
-3,720
| -22% | -$286K |
|
|
MOMO
221
Hello Group
MOMO
$1.34B
| $1.02M | ﹤0.01% |
33,077
+19,321
| +140% | +$598K |
|
222
Dolby
DLB
$6.98B
| $1.01M | ﹤0.01% |
15,626
+10,386
| +198% | +$671K |
|
223
Intercontinental Exchange
ICE
$99.9B
| $1.01M | ﹤0.01% |
10,910
+9,946
| +1,032% | +$917K |
|
|
FLG
224
Flagstar Financial, Inc.
FLG
$5.38B
| $1M | ﹤0.01% |
26,683
+25,799
| +2,918% | +$971K |
|
|
SRCL
225
DELISTED
Stericycle Inc
SRCL
| $995K | ﹤0.01% |
19,555
+12,302
| +170% | +$626K |
|