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 | +$73.1M | |
| 2 | +$51.8M | |
| 3 | +$46M | |
| 4 |
Meta Platforms (Facebook)
META
|
+$41.8M |
| 5 |
Alibaba
BABA
|
+$37.1M |
Top Sells
| 1 | +$262M | |
| 2 | +$194M | |
| 3 | +$149M | |
| 4 |
Apple
AAPL
|
+$119M |
| 5 |
Amazon
AMZN
|
+$107M |
Sector Composition
| 1 | Technology | 29.59% |
| 2 | Consumer Discretionary | 10.67% |
| 3 | Healthcare | 10.12% |
| 4 | Industrials | 8.86% |
| 5 | Communication Services | 7.94% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
26
Eos Energy Enterprises
EOSE
$1.94B
| $25.8M | 0.72% |
2,248,934
+1,045,312
|
|
||
27
Oracle
ORCL
$446B
| $25.6M | 0.72% |
131,399
+107,940
|
|
||
28
Vertiv
VRT
$99B
| $24.6M | 0.69% |
151,799
+89,462
|
|
||
29
NextEra Energy
NEE
$193B
| $23.6M | 0.66% |
293,398
+66,705
|
|
||
30
Comcast
CMCSA
$109B
| $23.4M | 0.66% |
783,697
+646,575
|
|
||
31
TeraWulf
WULF
$6.22B
| $22.3M | 0.63% |
1,941,017
+1,078,795
|
|
||
32
VanEck Gold Miners ETF
GDX
$29.5B
| $21.2M | 0.6% |
+247,615
|
|
||
33
Marvell Technology
MRVL
$76.7B
| $20.9M | 0.59% |
245,442
-73,018
|
|
||
34
Warner Bros
WBD
$67.3B
| $20.4M | 0.57% |
707,385
+241,689
|
|
||
35
Coinbase
COIN
$51.6B
| $20.2M | 0.57% |
89,109
+31,185
|
|
||
36
Newmont
NEM
$119B
| $19.7M | 0.55% |
+197,022
|
|
||
37
Boeing
BA
$165B
| $19M | 0.54% |
+87,723
|
|
||
38
SLB Ltd
SLB
$67.1B
| $18.4M | 0.52% |
479,075
+146,758
|
|
||
39
Nike
NKE
$79.9B
| $17.8M | 0.5% |
279,226
-257,066
|
|
||
|
CRWV
40
CoreWeave Inc
CRWV
$42.6B
| $17.3M | 0.49% |
+241,594
|
|
||
41
AutoZone
AZO
$58.9B
| $17.3M | 0.49% |
5,092
+5,072
|
|
||
42
Dell
DELL
$100B
| $16.9M | 0.47% |
133,949
+118,653
|
|
||
43
Arm
ARM
$123B
| $16.8M | 0.47% |
153,416
+126,380
|
|
||
44
Salesforce
CRM
$178B
| $16.6M | 0.47% |
62,567
-6,938
|
|
||
45
Constellation Energy
CEG
$109B
| $15.8M | 0.44% |
44,711
+43,501
|
|
||
46
EchoStar
SATS
$31.3B
| $15.7M | 0.44% |
144,099
+49,813
|
|
||
|
SNDK
47
Sandisk
SNDK
$97.7B
| $15.6M | 0.44% |
+65,895
|
|
||
48
lululemon athletica
LULU
$18.5B
| $15.4M | 0.43% |
73,917
+49,485
|
|
||
49
Alphabet (Google) Class C
GOOG
$3.65T
| $15.2M | 0.43% |
48,506
+16,094
|
|
||
50
Nu Holdings
NU
$67.4B
| $14.4M | 0.4% |
858,285
+9,343
|
|