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 | +$168M | |
| 2 | +$141M | |
| 3 | +$121M | |
| 4 |
Meta Platforms (Facebook)
META
|
+$107M |
| 5 |
SPDR Gold Trust
GLD
|
+$103M |
Top Sells
| 1 | +$174M | |
| 2 | +$87.7M | |
| 3 | +$62.2M | |
| 4 |
Direxion Daily Semiconductor Bull 3X ETF
SOXL
|
+$52M |
| 5 |
Netflix
NFLX
|
+$44.6M |
Sector Composition
| 1 | Technology | 28.63% |
| 2 | Communication Services | 10.32% |
| 3 | Consumer Discretionary | 9.84% |
| 4 | Healthcare | 9.22% |
| 5 | Industrials | 4.62% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
201
Franco-Nevada
FNV
$40.4B
| $2.24M | 0.07% |
9,054
+3,168
|
|
||
202
Hecla Mining
HL
$10.3B
| $2.21M | 0.07% |
+118,499
|
|
||
|
QXO
203
QXO Inc
QXO
$12.1B
| $2.2M | 0.07% |
113,183
+70,615
|
|
||
|
XYZ
204
Block Inc
XYZ
$41.4B
| $2.19M | 0.07% |
+36,374
|
|
||
|
UNIT
205
Uniti Group
UNIT
$3.1B
| $2.18M | 0.07% |
231,966
-60,785
|
|
||
206
Liberty Energy
LBRT
$4.71B
| $2.13M | 0.07% |
73,956
+16,413
|
|
||
207
Akamai
AKAM
$19.4B
| $2.11M | 0.07% |
18,403
-32,073
|
|
||
208
Equinor
EQNR
$90.1B
| $2.09M | 0.06% |
49,437
+44,800
|
|
||
209
Coeur Mining
CDE
$17.7B
| $2.07M | 0.06% |
110,079
+851
|
|
||
210
Goodyear
GT
$1.84B
| $2.02M | 0.06% |
305,344
-136,077
|
|
||
211
Vistra
VST
$49.9B
| $2.02M | 0.06% |
13,455
-29,137
|
|
||
212
FMC
FMC
$1.48B
| $2.01M | 0.06% |
116,481
+39,809
|
|
||
213
Royal Bank of Canada
RY
$277B
| $2M | 0.06% |
12,369
-6,702
|
|
||
214
VanEck Gold Miners ETF
GDX
$24.3B
| $1.98M | 0.06% |
21,591
-226,024
|
|
||
215
Invesco Solar ETF
TAN
$1.98B
| $1.95M | 0.06% |
+35,060
|
|
||
216
Teradyne
TER
$63.1B
| $1.95M | 0.06% |
6,572
+3,824
|
|
||
217
Clorox
CLX
$11.7B
| $1.94M | 0.06% |
18,708
+10,497
|
|
||
218
Sable Offshore Corp
SOC
$1.68B
| $1.92M | 0.06% |
116,509
-12,942
|
|
||
219
DaVita
DVA
$13.4B
| $1.92M | 0.06% |
+12,475
|
|
||
220
UiPath
PATH
$5.47B
| $1.91M | 0.06% |
172,305
-230,765
|
|
||
221
Qiagen
QGEN
$7.64B
| $1.91M | 0.06% |
47,722
+20,948
|
|
||
222
Enphase Energy
ENPH
$7.19B
| $1.91M | 0.06% |
50,533
-8,522
|
|
||
223
American Airlines Group
AAL
$9.91B
| $1.9M | 0.06% |
176,984
-519,641
|
|
||
224
Direxion Daily Energy Bull 2X ETF
ERX
$254M
| $1.9M | 0.06% |
18,409
+1,462
|
|
||
225
Vicor
VICR
$13.8B
| $1.88M | 0.06% |
11,698
+2,102
|
|