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 |
Apple
AAPL
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
151
Moderna
MRNA
$9.36B
| $4.33M | ﹤0.01% |
+104,203
| New | +$4.33M |
|
152
APA Corp
APA
$8.11B
| $4.28M | ﹤0.01% |
185,289
+107,769
| +139% | +$2.49M |
|
153
ProShares UltraPro Short QQQ
SQQQ
$2.39B
| $4.27M | ﹤0.01% |
137,122
-316,408
| -70% | +$1.45M |
|
154
VICI Properties
VICI
$35.6B
| $4.22M | ﹤0.01% |
+144,600
| New | +$4.22M |
|
155
Futu Holdings
FUTU
$27B
| $4.21M | ﹤0.01% |
52,667
+39,749
| +308% | +$3.18M |
|
156
Dick's Sporting Goods
DKS
$16.8B
| $4.16M | ﹤0.01% |
+18,196
| New | +$4.16M |
|
157
Lumen
LUMN
$4.84B
| $4.16M | ﹤0.01% |
784,136
+505,134
| +181% | +$2.68M |
|
158
NuScale Power
SMR
$5.41B
| $4.14M | ﹤0.01% |
+230,785
| New | +$4.14M |
|
159
Merck
MRK
$210B
| $4.11M | ﹤0.01% |
+41,291
| New | +$4.11M |
|
160
Tesla
TSLA
$1.08T
| $4.1M | ﹤0.01% |
+10,164
| New | +$4.1M |
|
161
Tyson Foods
TSN
$20B
| $3.99M | ﹤0.01% |
69,410
-8,947
| -11% | -$514K |
|
162
Golar LNG
GLNG
$4.49B
| $3.97M | ﹤0.01% |
93,897
-59,410
| -39% | -$2.51M |
|
163
Vistra
VST
$63.8B
| $3.97M | ﹤0.01% |
28,811
-65,111
| -69% | -$8.98M |
|
164
Chewy
CHWY
$16.8B
| $3.95M | ﹤0.01% |
117,820
-27,404
| -19% | -$918K |
|
165
PG&E
PCG
$33.7B
| $3.94M | ﹤0.01% |
195,320
+191,282
| +4,737% | +$3.86M |
|
166
ArcBest
ARCB
$1.65B
| $3.94M | ﹤0.01% |
42,226
+20,001
| +90% | +$1.87M |
|
167
Box
BOX
$4.69B
| $3.89M | ﹤0.01% |
123,137
+44,676
| +57% | +$1.41M |
|
168
Novartis
NVS
$248B
| $3.86M | ﹤0.01% |
39,701
+38,588
| +3,467% | +$3.75M |
|
169
The Communication Services Select Sector SPDR Fund
XLC
$25.4B
| $3.86M | ﹤0.01% |
39,855
+16,462
| +70% | +$1.59M |
|
170
Targa Resources
TRGP
$35.2B
| $3.83M | ﹤0.01% |
21,454
+20,276
| +1,721% | +$3.62M |
|
171
FedEx
FDX
$53.2B
| $3.79M | ﹤0.01% |
13,480
-14,063
| -51% | -$3.96M |
|
172
Alcoa
AA
$8.05B
| $3.75M | ﹤0.01% |
99,216
+9,039
| +10% | +$341K |
|
173
SPDR S&P Bank ETF
KBE
$1.6B
| $3.72M | ﹤0.01% |
+66,990
| New | +$3.72M |
|
|
FLG
174
Flagstar Financial, Inc.
FLG
$5.33B
| $3.65M | ﹤0.01% |
391,686
+32,631
| +9% | +$304K |
|
175
Etsy
ETSY
$5.15B
| $3.65M | ﹤0.01% |
68,994
+66,433
| +2,594% | +$3.51M |
|