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
|
$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$38.8M |
| 4 |
Amazon
AMZN
|
$38.6M |
| 5 |
Tesla
TSLA
|
$36M |
Top Sells
| 1 |
Alibaba
BABA
|
$46.4M |
| 2 |
Boeing
BA
|
$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
$18.2M |
| 4 |
Biogen
BIIB
|
$15.8M |
| 5 |
NVIDIA
NVDA
|
$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
76
JPMorgan Chase
JPM
$824B
| $3.63M | 0.01% |
+26,006
| New | +$3.63M |
|
77
Meta Platforms (Facebook)
META
$1.85T
| $3.61M | 0.01% |
17,564
+15,591
| +790% | +$3.2M |
|
78
iShares US Transportation ETF
IYT
$607M
| $3.59M | 0.01% |
+18,371
| New | +$3.59M |
|
79
Invesco S&P 500 Equal Weight ETF
RSP
$73.5B
| $3.59M | 0.01% |
31,015
+3,867
| +14% | +$447K |
|
80
Intuit
INTU
$187B
| $3.57M | 0.01% |
+13,623
| New | +$3.57M |
|
81
Salesforce
CRM
$245B
| $3.55M | 0.01% |
21,837
-46,907
| -68% | -$7.63M |
|
82
Novartis
NVS
$248B
| $3.53M | 0.01% |
+37,282
| New | +$3.53M |
|
83
Atlassian
TEAM
$44.8B
| $3.49M | 0.01% |
29,033
+27,417
| +1,697% | +$3.3M |
|
84
Coca-Cola
KO
$297B
| $3.39M | 0.01% |
+61,302
| New | +$3.39M |
|
85
Best Buy
BBY
$15.8B
| $3.36M | 0.01% |
+38,273
| New | +$3.36M |
|
86
Dollar Tree
DLTR
$21.3B
| $3.36M | 0.01% |
35,698
-2,389
| -6% | -$225K |
|
87
Uber
UBER
$194B
| $3.31M | 0.01% |
+111,374
| New | +$3.31M |
|
88
VanEck Gold Miners ETF
GDX
$19.6B
| $3.26M | 0.01% |
+111,288
| New | +$3.26M |
|
89
Industrial Select Sector SPDR Fund
XLI
$23B
| $3.16M | 0.01% |
38,765
-48,057
| -55% | -$3.91M |
|
90
General Motors
GM
$55B
| $3.16M | 0.01% |
86,242
+20,641
| +31% | +$755K |
|
91
Sony
SONY
$162B
| $3.07M | 0.01% |
+45,186
| New | +$3.07M |
|
|
CHL
92
DELISTED
China Mobile Limited
CHL
| $3M | 0.01% |
70,991
+33,340
| +89% | +$1.41M |
|
93
ProShares Ultra S&P500
SSO
$7.13B
| $2.98M | 0.01% |
19,780
+3,707
| +23% | +$559K |
|
94
Domino's
DPZ
$15.8B
| $2.92M | 0.01% |
9,935
+63
| +0.6% | +$18.5K |
|
95
Newmont
NEM
$82.8B
| $2.87M | 0.01% |
65,989
+40,038
| +154% | +$1.74M |
|
96
Colgate-Palmolive
CL
$67.7B
| $2.84M | 0.01% |
41,315
+7,263
| +21% | +$500K |
|
|
SAVE
97
DELISTED
Spirit Airlines, Inc.
SAVE
| $2.83M | 0.01% |
70,202
+65,204
| +1,305% | +$2.63M |
|
98
Carnival Corp
CCL
$42.5B
| $2.77M | 0.01% |
+54,441
| New | +$2.77M |
|
99
Capri Holdings
CPRI
$2.51B
| $2.76M | 0.01% |
72,412
+33,537
| +86% | +$1.28M |
|
100
Nutanix
NTNX
$18.2B
| $2.75M | 0.01% |
88,021
+16,484
| +23% | +$515K |
|