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 |
Amazon
AMZN
|
$84.3M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
$37M |
| 3 |
Amgen
AMGN
|
$32.3M |
| 4 |
Micron Technology
MU
|
$29.4M |
| 5 |
Qualcomm
QCOM
|
$18M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$29.8M |
| 2 |
Gilead Sciences
GILD
|
$29.3M |
| 3 |
Goldman Sachs
GS
|
$27.7M |
| 4 |
Booking.com
BKNG
|
$26M |
| 5 |
AT&T
T
|
$20.8M |
Sector Composition
| 1 | Technology | 20.65% |
| 2 | Communication Services | 17.64% |
| 3 | Consumer Discretionary | 14.77% |
| 4 | Healthcare | 11.1% |
| 5 | Financials | 6.35% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
126
Lennar Class A
LEN
$35.6B
| $1.84M | 0.08% |
36,283
+2,443
| +7% | +$124K |
|
127
Thomson Reuters
TRI
$80.5B
| $1.83M | 0.08% |
34,546
+15,856
| +85% | +$839K |
|
128
Domino's
DPZ
$15.6B
| $1.83M | 0.08% |
+8,629
| New | +$1.83M |
|
129
Advanced Energy
AEIS
$5.61B
| $1.82M | 0.08% |
28,099
+18,363
| +189% | +$1.19M |
|
|
CAB
130
DELISTED
Cabela's Inc
CAB
| $1.77M | 0.08% |
29,735
-5,793
| -16% | -$344K |
|
131
Vale
VALE
$43.6B
| $1.77M | 0.08% |
201,752
-152,384
| -43% | -$1.33M |
|
132
Service Corp International
SCI
$10.9B
| $1.76M | 0.08% |
52,715
+29,032
| +123% | +$971K |
|
133
Southwest Airlines
LUV
$16.7B
| $1.72M | 0.07% |
+27,726
| New | +$1.72M |
|
134
Microchip Technology
MCHP
$34.7B
| $1.7M | 0.07% |
44,156
-41,152
| -48% | -$1.59M |
|
135
Northrop Grumman
NOC
$82.8B
| $1.68M | 0.07% |
6,555
-15,381
| -70% | -$3.95M |
|
136
Autoliv
ALV
$9.6B
| $1.68M | 0.07% |
21,195
+20,248
| +2,138% | +$1.6M |
|
137
Hershey
HSY
$37.4B
| $1.67M | 0.07% |
+15,519
| New | +$1.67M |
|
138
Bristol-Myers Squibb
BMY
$95.3B
| $1.64M | 0.07% |
+29,429
| New | +$1.64M |
|
|
TWX
139
DELISTED
Time Warner Inc
TWX
| $1.63M | 0.07% |
+16,236
| New | +$1.63M |
|
|
BPL
140
DELISTED
Buckeye Partners, L.P.
BPL
| $1.63M | 0.07% |
25,428
+24,439
| +2,471% | +$1.56M |
|
141
BHP
BHP
$140B
| $1.62M | 0.07% |
51,040
+12,344
| +32% | +$392K |
|
|
CEO
142
DELISTED
CNOOC Limited
CEO
| $1.62M | 0.07% |
14,800
+6,988
| +89% | +$764K |
|
143
PVH
PVH
$4.19B
| $1.61M | 0.07% |
+14,092
| New | +$1.61M |
|
144
Kennedy-Wilson Holdings
KW
$1.2B
| $1.6M | 0.07% |
84,107
+79,485
| +1,720% | +$1.51M |
|
145
Trip.com Group
TCOM
$47.1B
| $1.6M | 0.07% |
29,724
-5,876
| -17% | -$316K |
|
146
Molson Coors Class B
TAP
$9.81B
| $1.6M | 0.07% |
18,492
+14,818
| +403% | +$1.28M |
|
|
ALR
147
DELISTED
Alere Inc
ALR
| $1.59M | 0.07% |
31,747
+24,222
| +322% | +$1.22M |
|
148
Mettler-Toledo International
MTD
$26.3B
| $1.59M | 0.07% |
+2,706
| New | +$1.59M |
|
149
CyberArk
CYBR
$23.1B
| $1.59M | 0.07% |
+31,840
| New | +$1.59M |
|
150
Direxion Daily Financial Bull 3x Shares
FAS
$2.72B
| $1.58M | 0.07% |
31,951
+27,486
| +616% | +$1.36M |
|