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 |
Microsoft
MSFT
|
$101M |
| 2 |
NVIDIA
NVDA
|
$66M |
| 3 |
Citigroup
C
|
$51.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
$42.7M |
| 5 |
SPDR Gold Trust
GLD
|
$39.4M |
Top Sells
| 1 |
Apple
AAPL
|
$411M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
$64M |
| 3 |
Meta Platforms (Facebook)
META
|
$39.8M |
| 4 |
iShares Core S&P 500 ETF
IVV
|
$34.3M |
| 5 |
PayPal
PYPL
|
$32.9M |
Sector Composition
| 1 | Technology | 17.4% |
| 2 | Financials | 12.04% |
| 3 | Consumer Discretionary | 10.17% |
| 4 | Healthcare | 8.63% |
| 5 | Industrials | 6.03% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
151
Hershey
HSY
$37.4B
| $3.23M | ﹤0.01% |
14,649
+8,362
| +133% | +$1.84M |
|
152
Crown Holdings
CCK
$10.7B
| $3.2M | ﹤0.01% |
39,455
+18,692
| +90% | +$1.51M |
|
153
Energy Select Sector SPDR Fund
XLE
$27.1B
| $3.19M | ﹤0.01% |
44,269
-183,256
| -81% | -$13.2M |
|
154
TE Connectivity
TEL
$60.9B
| $3.15M | ﹤0.01% |
+28,527
| New | +$3.15M |
|
155
dLocal
DLO
$4.09B
| $3.13M | ﹤0.01% |
+152,458
| New | +$3.13M |
|
|
SWAV
156
DELISTED
Shockwave Medical, Inc. Common Stock
SWAV
| $3.11M | ﹤0.01% |
11,168
+290
| +3% | +$80.6K |
|
157
Moody's
MCO
$89B
| $3.04M | ﹤0.01% |
12,485
+5,065
| +68% | +$1.23M |
|
158
Cboe Global Markets
CBOE
$24.6B
| $3.03M | ﹤0.01% |
25,791
+21,286
| +472% | +$2.5M |
|
|
BERY
159
DELISTED
Berry Global Group, Inc.
BERY
| $3.02M | ﹤0.01% |
+70,639
| New | +$3.02M |
|
160
3M
MMM
$81B
| $3.01M | ﹤0.01% |
+32,610
| New | +$3.01M |
|
161
Infosys
INFY
$69B
| $3M | ﹤0.01% |
177,046
+102,710
| +138% | +$1.74M |
|
|
FSR
162
DELISTED
Fisker Inc.
FSR
| $2.99M | ﹤0.01% |
+396,427
| New | +$2.99M |
|
163
SPDR Euro Stoxx 50 ETF
FEZ
$4.5B
| $2.98M | ﹤0.01% |
+97,024
| New | +$2.98M |
|
164
Zoom
ZM
$25B
| $2.94M | ﹤0.01% |
39,896
-102,214
| -72% | -$7.52M |
|
165
Ralph Lauren
RL
$19B
| $2.91M | ﹤0.01% |
+34,309
| New | +$2.91M |
|
166
Danaher
DHR
$143B
| $2.88M | ﹤0.01% |
+12,596
| New | +$2.88M |
|
|
CPE
167
DELISTED
Callon Petroleum Company
CPE
| $2.85M | ﹤0.01% |
81,513
+31,761
| +64% | +$1.11M |
|
168
SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$41.9B
| $2.85M | ﹤0.01% |
31,120
-3,100
| -9% | -$284K |
|
169
Sea Limited
SE
$107B
| $2.82M | ﹤0.01% |
50,298
+49,198
| +4,473% | +$2.76M |
|
|
FTCH
170
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $2.81M | ﹤0.01% |
376,791
+278,848
| +285% | +$2.08M |
|
171
US Bancorp
USB
$75.5B
| $2.79M | ﹤0.01% |
+69,171
| New | +$2.79M |
|
172
Celsius Holdings
CELH
$15.8B
| $2.78M | ﹤0.01% |
91,845
+33,120
| +56% | +$1M |
|
173
MongoDB
MDB
$25.5B
| $2.77M | ﹤0.01% |
13,969
-3,045
| -18% | -$604K |
|
174
Schlumberger
SLB
$52.2B
| $2.77M | ﹤0.01% |
+77,043
| New | +$2.77M |
|
175
Newmont
NEM
$82.8B
| $2.75M | ﹤0.01% |
65,538
-270,386
| -80% | -$11.4M |
|