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 | |
|---|---|---|---|---|---|---|
51
Medtronic
MDT
$118B
| $5.01M | 0.01% |
+44,179
| New | +$5.01M |
|
52
Analog Devices
ADI
$120B
| $4.77M | 0.01% |
40,160
+13,313
| +50% | +$1.58M |
|
53
NXP Semiconductors
NXPI
$57.5B
| $4.63M | 0.01% |
+36,351
| New | +$4.63M |
|
54
Hasbro
HAS
$11.1B
| $4.58M | 0.01% |
43,349
+26,659
| +160% | +$2.82M |
|
55
Kraft Heinz
KHC
$31.9B
| $4.57M | 0.01% |
142,230
-69,136
| -33% | -$2.22M |
|
56
SPDR S&P Regional Banking ETF
KRE
$3.97B
| $4.55M | 0.01% |
78,075
+76,792
| +5,985% | +$4.47M |
|
57
American Express
AXP
$225B
| $4.49M | 0.01% |
+36,044
| New | +$4.49M |
|
58
iShares 1-3 Year Treasury Bond ETF
SHY
$24.5B
| $4.42M | 0.01% |
52,223
+51,525
| +7,382% | +$4.36M |
|
59
BP
BP
$88.8B
| $4.41M | 0.01% |
+116,978
| New | +$4.41M |
|
60
Paycom
PAYC
$12.5B
| $4.35M | 0.01% |
+16,419
| New | +$4.35M |
|
61
Walt Disney
DIS
$211B
| $4.24M | 0.01% |
29,346
+14,670
| +100% | +$2.12M |
|
62
Ubiquiti
UI
$33B
| $4.21M | 0.01% |
+22,268
| New | +$4.21M |
|
63
Restaurant Brands International
QSR
$20.5B
| $4.18M | 0.01% |
65,616
+44,563
| +212% | +$2.84M |
|
64
Honeywell
HON
$136B
| $4.08M | 0.01% |
23,060
+17,606
| +323% | +$3.12M |
|
65
Microchip Technology
MCHP
$34.2B
| $3.92M | 0.01% |
37,430
+36,568
| +4,242% | +$3.83M |
|
66
Humana
HUM
$37.5B
| $3.9M | 0.01% |
10,647
-1,451
| -12% | -$532K |
|
67
Valero Energy
VLO
$48.3B
| $3.84M | 0.01% |
+40,961
| New | +$3.84M |
|
68
ProShares UltraPro S&P 500
UPRO
$4.43B
| $3.82M | 0.01% |
+54,622
| New | +$3.82M |
|
69
Palo Alto Networks
PANW
$128B
| $3.8M | 0.01% |
+16,433
| New | +$3.8M |
|
70
WESCO International
WCC
$10.6B
| $3.78M | 0.01% |
63,679
+63,503
| +36,081% | +$3.77M |
|
71
SPDR S&P Metals & Mining ETF
XME
$2.28B
| $3.75M | 0.01% |
127,937
+91,794
| +254% | +$2.69M |
|
72
Utilities Select Sector SPDR Fund
XLU
$20.8B
| $3.73M | 0.01% |
57,773
-10,790
| -16% | -$697K |
|
73
Kinder Morgan
KMI
$59.4B
| $3.72M | 0.01% |
+175,862
| New | +$3.72M |
|
74
Wynn Resorts
WYNN
$13.1B
| $3.66M | 0.01% |
26,334
-39,413
| -60% | -$5.47M |
|
75
Sarepta Therapeutics
SRPT
$1.98B
| $3.64M | 0.01% |
+28,197
| New | +$3.64M |
|