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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
COW
1176
DELISTED
iPath Series B Bloomberg Livestock Subindex Total ReturnSM ETN
COW
| $209K | ﹤0.01% |
5,562
-821
| -13% | -$30.9K |
|
|
AGEN
1177
Agenus
AGEN
$143M
| $208K | ﹤0.01% |
3,295
+3,264
| +10,529% | +$206K |
|
1178
nCino
NCNO
$3.48B
| $208K | ﹤0.01% |
3,805
-9,709
| -72% | -$531K |
|
1179
OFG Bancorp
OFG
$1.96B
| $208K | ﹤0.01% |
7,844
+6,591
| +526% | +$175K |
|
1180
Terex
TEX
$3.49B
| $208K | ﹤0.01% |
+4,733
| New | +$208K |
|
1181
Toll Brothers
TOL
$13.9B
| $208K | ﹤0.01% |
2,882
+1,682
| +140% | +$121K |
|
1182
IAC Inc
IAC
$2.9B
| $207K | ﹤0.01% |
1,931
-1,381
| -42% | -$148K |
|
1183
Invesco Semiconductors ETF
PSI
$907M
| $207K | ﹤0.01% |
+4,062
| New | +$207K |
|
|
GAN
1184
DELISTED
GAN Ltd
GAN
| $206K | ﹤0.01% |
22,456
+13,950
| +164% | +$128K |
|
1185
Leggett & Platt
LEG
$1.31B
| $205K | ﹤0.01% |
4,983
-3,975
| -44% | -$164K |
|
1186
Relmada Therapeutics
RLMD
$48.8M
| $205K | ﹤0.01% |
9,143
+5,057
| +124% | +$113K |
|
|
TEN
1187
DELISTED
Tenneco Inc. Class A Voting Common Stock
TEN
| $205K | ﹤0.01% |
18,143
-87,379
| -83% | -$987K |
|
1188
American Homes 4 Rent
AMH
$12.6B
| $204K | ﹤0.01% |
+4,683
| New | +$204K |
|
1189
Atkore
ATKR
$2.09B
| $204K | ﹤0.01% |
1,839
-7,128
| -79% | -$791K |
|
1190
VanEck Low Carbon Energy ETF
SMOG
$124M
| $204K | ﹤0.01% |
1,274
-968
| -43% | -$155K |
|
1191
Direxion Daily Healthcare Bull 3X Shares
CURE
$169M
| $203K | ﹤0.01% |
1,403
-893
| -39% | -$129K |
|
1192
LeMaitre Vascular
LMAT
$2.09B
| $203K | ﹤0.01% |
+4,060
| New | +$203K |
|
|
CTIC
1193
DELISTED
CTI BioPharma Corp. (DE) Common Stock
CTIC
| $203K | ﹤0.01% |
+82,126
| New | +$203K |
|
1194
Bionano Genomics
BNGO
$17.3M
| $202K | ﹤0.01% |
113
-229
| -67% | -$409K |
|
1195
NETSCOUT
NTCT
$1.81B
| $202K | ﹤0.01% |
6,117
+4,849
| +382% | +$160K |
|
1196
Silicon Motion
SIMO
$3B
| $202K | ﹤0.01% |
2,129
-11,235
| -84% | -$1.07M |
|
1197
Silgan Holdings
SLGN
$4.71B
| $202K | ﹤0.01% |
+4,720
| New | +$202K |
|
1198
Invesco S&P 500 Top 50 ETF
XLG
$10.6B
| $202K | ﹤0.01% |
+5,480
| New | +$202K |
|
1199
Anavex Life Sciences
AVXL
$822M
| $201K | ﹤0.01% |
11,608
-11,244
| -49% | -$195K |
|
1200
The GEO Group
GEO
$3.13B
| $201K | ﹤0.01% |
26,058
+20,318
| +354% | +$157K |
|