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
|
$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
$59.4M |
| 5 |
Intel
INTC
|
$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 2 |
iShares Silver Trust
SLV
|
$45.9M |
| 3 |
Ford
F
|
$32.5M |
| 4 |
Exxon Mobil
XOM
|
$20.4M |
| 5 |
Caterpillar
CAT
|
$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
126
Peabody Energy
BTU
$2.12B
| $3.69M | ﹤0.01% |
172,993
+6,986
| +4% | +$149K |
|
127
ProShares Ultra Bloomberg Crude Oil
UCO
$369M
| $3.69M | ﹤0.01% |
+88,144
| New | +$3.69M |
|
128
McKesson
MCK
$86B
| $3.64M | ﹤0.01% |
11,173
+5,812
| +108% | +$1.9M |
|
129
Regeneron Pharmaceuticals
REGN
$60.1B
| $3.63M | ﹤0.01% |
6,133
+794
| +15% | +$469K |
|
130
Lennar Class A
LEN
$35.8B
| $3.62M | ﹤0.01% |
53,034
-11,919
| -18% | -$814K |
|
131
Lowe's Companies
LOW
$148B
| $3.62M | ﹤0.01% |
+20,745
| New | +$3.62M |
|
132
Cencora
COR
$56.7B
| $3.6M | ﹤0.01% |
25,474
+17,116
| +205% | +$2.42M |
|
133
uniQure
QURE
$973M
| $3.56M | ﹤0.01% |
190,841
+173,862
| +1,024% | +$3.24M |
|
134
Tower Semiconductor
TSEM
$7.04B
| $3.5M | ﹤0.01% |
75,849
+12,390
| +20% | +$572K |
|
135
ArcelorMittal
MT
$25.3B
| $3.47M | ﹤0.01% |
153,379
-159,652
| -51% | -$3.61M |
|
136
Clorox
CLX
$15.2B
| $3.43M | ﹤0.01% |
24,333
+11,508
| +90% | +$1.62M |
|
137
Dick's Sporting Goods
DKS
$17.8B
| $3.41M | ﹤0.01% |
+45,193
| New | +$3.41M |
|
138
Direxion Daily S&P Oil & Gas Exp & Prod Bull 2X Shares
GUSH
$257M
| $3.4M | ﹤0.01% |
110,356
-22,764
| -17% | -$700K |
|
139
Medtronic
MDT
$119B
| $3.39M | ﹤0.01% |
37,724
-70,502
| -65% | -$6.33M |
|
140
Direxion Daily FTSE China Bull 3X Shares
YINN
$1.15B
| $3.38M | ﹤0.01% |
34,254
+6,999
| +26% | +$690K |
|
141
Steel Dynamics
STLD
$19.3B
| $3.37M | ﹤0.01% |
50,927
+14,892
| +41% | +$985K |
|
142
Alpha Metallurgical Resources
AMR
$1.77B
| $3.37M | ﹤0.01% |
26,071
+10,702
| +70% | +$1.38M |
|
143
Vertex Pharmaceuticals
VRTX
$102B
| $3.35M | ﹤0.01% |
11,901
+6,589
| +124% | +$1.86M |
|
144
Phillips 66
PSX
$53.2B
| $3.33M | ﹤0.01% |
+40,623
| New | +$3.33M |
|
145
NextEra Energy, Inc.
NEE
$146B
| $3.28M | ﹤0.01% |
+42,327
| New | +$3.28M |
|
146
ARK Fintech Innovation ETF
ARKF
$1.33B
| $3.24M | ﹤0.01% |
209,295
+209,095
| +104,548% | +$3.24M |
|
147
Blue Owl Capital
OWL
$11.8B
| $3.19M | ﹤0.01% |
317,744
+262,813
| +478% | +$2.64M |
|
148
KE Holdings
BEKE
$21.9B
| $3.17M | ﹤0.01% |
176,703
-158,448
| -47% | -$2.84M |
|
149
Home Depot
HD
$410B
| $3.16M | ﹤0.01% |
+11,507
| New | +$3.16M |
|
150
American Airlines Group
AAL
$8.49B
| $3.15M | ﹤0.01% |
248,798
-524,783
| -68% | -$6.65M |
|