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 | |
|---|---|---|---|---|---|---|
76
Rigetti Computing
RGTI
$5.37B
| $9.64M | 0.27% |
435,326
+207,892
|
|
||
77
United Airlines
UAL
$28B
| $9.54M | 0.27% |
+85,296
|
|
||
78
Kimberly-Clark
KMB
$32.8B
| $9.47M | 0.27% |
+93,843
|
|
||
79
Oscar Health
OSCR
$3.94B
| $9.19M | 0.26% |
639,236
+218,403
|
|
||
80
Abercrombie & Fitch
ANF
$3.75B
| $9.12M | 0.26% |
+72,486
|
|
||
81
XPeng
XPEV
$19.1B
| $9.08M | 0.26% |
447,752
+222,785
|
|
||
|
CRCL
82
Circle Internet Group
CRCL
$28.5B
| $9.06M | 0.25% |
+114,194
|
|
||
83
BJs Wholesale Club
BJ
$12.8B
| $8.66M | 0.24% |
96,184
+40,723
|
|
||
84
Zoetis
ZTS
$48.8B
| $8.63M | 0.24% |
68,580
+59,251
|
|
||
85
Futu Holdings
FUTU
$19.7B
| $8.63M | 0.24% |
52,535
+8,683
|
|
||
86
Home Depot
HD
$338B
| $8.37M | 0.24% |
+24,312
|
|
||
87
Vale
VALE
$62.7B
| $8.29M | 0.23% |
+636,509
|
|
||
88
JD.com
JD
$38.8B
| $8.27M | 0.23% |
288,008
-423,013
|
|
||
89
Wayfair
W
$9.9B
| $8.23M | 0.23% |
81,918
+31,890
|
|
||
90
Coherent
COHR
$45.5B
| $8.16M | 0.23% |
44,211
+26,213
|
|
||
91
Spotify
SPOT
$106B
| $8.12M | 0.23% |
13,980
+7,744
|
|
||
92
Chipotle Mexican Grill
CMG
$42.4B
| $8.05M | 0.23% |
217,671
-11,775
|
|
||
93
Starbucks
SBUX
$113B
| $8.03M | 0.23% |
95,334
+29,070
|
|
||
94
Ionis Pharmaceuticals
IONS
$11.8B
| $7.65M | 0.22% |
96,647
-3,559
|
|
||
95
Cloudflare
NET
$74.8B
| $7.49M | 0.21% |
37,976
+13,720
|
|
||
96
TJX Companies
TJX
$173B
| $7.34M | 0.21% |
+47,815
|
|
||
97
State Street Technology Select Sector SPDR ETF
XLK
$86.6B
| $7.3M | 0.21% |
50,713
-102,953
|
|
||
98
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.57B
| $7.26M | 0.2% |
220,929
+218,375
|
|
||
99
Iris Energy
IREN
$13.8B
| $7.25M | 0.2% |
191,894
-1,250,705
|
|
||
|
FISV
100
Fiserv Inc
FISV
$30.3B
| $7.2M | 0.2% |
107,216
+99,457
|
|