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
|
$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 4 |
iShares Silver Trust
SLV
|
$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
$42.8M |
| 3 |
Verizon
VZ
|
$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
151
Global X Lithium & Battery Tech ETF
LIT
$1.07B
| $4.22M | ﹤0.01% |
54,812
+32,077
| +141% | +$2.47M |
|
152
Baker Hughes
BKR
$44.4B
| $4.18M | ﹤0.01% |
114,855
+77,528
| +208% | +$2.82M |
|
153
Danaos Corp
DAC
$1.73B
| $4.18M | ﹤0.01% |
+40,708
| New | +$4.18M |
|
154
KE Holdings
BEKE
$21.8B
| $4.15M | ﹤0.01% |
335,151
+236,103
| +238% | +$2.92M |
|
155
Peabody Energy
BTU
$2.08B
| $4.07M | ﹤0.01% |
166,007
+61,351
| +59% | +$1.5M |
|
156
Affirm
AFRM
$27.8B
| $4.05M | ﹤0.01% |
87,465
-143,772
| -62% | -$6.65M |
|
157
AutoZone
AZO
$70.1B
| $4.02M | ﹤0.01% |
1,966
+1,194
| +155% | +$2.44M |
|
158
Pinterest
PINS
$25.2B
| $4M | ﹤0.01% |
162,607
-161,245
| -50% | -$3.97M |
|
159
Dow Inc
DOW
$17B
| $3.96M | ﹤0.01% |
62,134
-221
| -0.4% | -$14.1K |
|
160
UiPath
PATH
$5.82B
| $3.93M | ﹤0.01% |
181,870
+137,669
| +311% | +$2.97M |
|
|
VSTO
161
DELISTED
Vista Outdoor Inc.
VSTO
| $3.92M | ﹤0.01% |
+109,835
| New | +$3.92M |
|
162
Deutsche Bank
DB
$67.1B
| $3.91M | ﹤0.01% |
308,947
+299,008
| +3,008% | +$3.78M |
|
163
iShares Russell 2000 Value ETF
IWN
$11.7B
| $3.87M | ﹤0.01% |
23,974
+23,967
| +342,386% | +$3.87M |
|
164
FedEx
FDX
$53.2B
| $3.81M | ﹤0.01% |
16,446
+13,459
| +451% | +$3.11M |
|
165
Fortinet
FTNT
$58.7B
| $3.81M | ﹤0.01% |
11,136
-13,453
| -55% | -$4.6M |
|
166
iShares 1-3 Year Treasury Bond ETF
SHY
$24.5B
| $3.78M | ﹤0.01% |
+45,400
| New | +$3.78M |
|
167
Cooper Companies
COO
$13.3B
| $3.76M | ﹤0.01% |
+9,004
| New | +$3.76M |
|
168
Regeneron Pharmaceuticals
REGN
$59.8B
| $3.73M | ﹤0.01% |
+5,339
| New | +$3.73M |
|
169
BioNTech
BNTX
$24.1B
| $3.71M | ﹤0.01% |
21,765
+7,609
| +54% | +$1.3M |
|
170
Intuitive Surgical
ISRG
$158B
| $3.67M | ﹤0.01% |
12,153
-16,843
| -58% | -$5.08M |
|
171
Vermilion Energy
VET
$1.15B
| $3.65M | ﹤0.01% |
173,632
+68,536
| +65% | +$1.44M |
|
172
iShares MSCI EAFE ETF
EFA
$65.4B
| $3.64M | ﹤0.01% |
+49,476
| New | +$3.64M |
|
173
MongoDB
MDB
$25.4B
| $3.63M | ﹤0.01% |
8,191
-5,325
| -39% | -$2.36M |
|
|
BRSL
174
Brightstar Lottery PLC
BRSL
$3.09B
| $3.59M | ﹤0.01% |
145,500
+143,016
| +5,757% | +$3.53M |
|
175
Viatris
VTRS
$12.3B
| $3.58M | ﹤0.01% |
328,745
+69,351
| +27% | +$754K |
|