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 | |
|---|---|---|---|---|---|---|
676
Star Bulk Carriers
SBLK
$2.53B
| $512K | 0.01% |
26,642
-8,016
|
|
||
677
Energy Vault
NRGV
$581M
| $510K | 0.01% |
110,721
-62,098
|
|
||
678
Avery Dennison
AVY
$13.2B
| $510K | 0.01% |
+2,805
|
|
||
679
Defiance Quantum ETF
QTUM
$3.5B
| $509K | 0.01% |
+4,646
|
|
||
680
Autodesk
ADSK
$52.7B
| $509K | 0.01% |
1,721
+1,541
|
|
||
681
Immunome
IMNM
$2.3B
| $503K | 0.01% |
23,401
-38,292
|
|
||
682
ASP Isotopes
ASPI
$668M
| $501K | 0.01% |
93,716
+80,319
|
|
||
683
Global X MSCI Argentina ETF
ARGT
$740M
| $501K | 0.01% |
+5,481
|
|
||
684
Teucrium Soybean Fund
SOYB
$45.8M
| $499K | 0.01% |
22,839
+14,801
|
|
||
685
Owens Corning
OC
$8.67B
| $497K | 0.01% |
+4,439
|
|
||
686
Shake Shack
SHAK
$3.65B
| $496K | 0.01% |
6,113
-10,103
|
|
||
|
VG
687
Venture Global Inc
VG
$30.2B
| $494K | 0.01% |
72,391
+35,621
|
|
||
688
Anterix
ATEX
$682M
| $492K | 0.01% |
22,550
+19,582
|
|
||
689
Rogers Corp
ROG
$1.82B
| $488K | 0.01% |
5,330
-1,101
|
|
||
|
VZLA
690
Vizsla Silver
VZLA
$1.25B
| $487K | 0.01% |
89,091
+79,864
|
|
||
691
BHP
BHP
$179B
| $487K | 0.01% |
8,070
+1,647
|
|
||
692
Amer Sports
AS
$19.5B
| $487K | 0.01% |
+13,037
|
|
||
693
Eagle Bancorp
EGBN
$743M
| $485K | 0.01% |
22,635
+18,512
|
|
||
694
NovaGold Resources
NG
$4.45B
| $484K | 0.01% |
+51,957
|
|
||
695
Union Pacific
UNP
$144B
| $483K | 0.01% |
+2,090
|
|
||
696
MBIA
MBI
$294M
| $483K | 0.01% |
67,452
-188,188
|
|
||
697
FerroAtlántica
GSM
$806M
| $482K | 0.01% |
103,847
-78,925
|
|
||
|
ABX
698
Abacus Global Management
ABX
$970M
| $480K | 0.01% |
56,194
+32,910
|
|
||
699
IQVIA
IQV
$27.7B
| $479K | 0.01% |
2,124
-9,150
|
|
||
700
Adient
ADNT
$1.55B
| $477K | 0.01% |
24,870
-5,436
|
|