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 | |
|---|---|---|---|---|---|---|
1201
Pure Storage
PSTG
$27.1B
| $201K | ﹤0.01% |
6,186
-15,521
| -72% | -$504K |
|
1202
Encompass Health
EHC
$12.7B
| $200K | ﹤0.01% |
3,859
+2,182
| +130% | +$113K |
|
1203
Horizon Kinetics Inflation Beneficiaries ETF
INFL
$1.28B
| $200K | ﹤0.01% |
6,436
-35,577
| -85% | -$1.11M |
|
|
VWTR
1204
DELISTED
Vidler Water Resouces, Inc. Common Stock
VWTR
| $200K | ﹤0.01% |
16,619
-67,511
| -80% | -$812K |
|
1205
AST SpaceMobile
ASTS
$10.3B
| $199K | ﹤0.01% |
25,153
-74,362
| -75% | -$588K |
|
1206
Global X Autonomous & Electric Vehicles ETF
DRIV
$342M
| $199K | ﹤0.01% |
6,537
-32,785
| -83% | -$998K |
|
|
TBCH
1207
Turtle Beach Corporation Common Stock
TBCH
$297M
| $198K | ﹤0.01% |
+8,920
| New | +$198K |
|
1208
Thomson Reuters
TRI
$77.9B
| $197K | ﹤0.01% |
1,591
-17,313
| -92% | -$2.14M |
|
|
DESP
1209
DELISTED
Despegar.com
DESP
| $196K | ﹤0.01% |
+20,071
| New | +$196K |
|
1210
Gaotu Techedu
GOTU
$884M
| $196K | ﹤0.01% |
101,413
+98,982
| +4,072% | +$191K |
|
1211
N-able
NABL
$1.54B
| $196K | ﹤0.01% |
+17,683
| New | +$196K |
|
1212
ICU Medical
ICUI
$3.29B
| $195K | ﹤0.01% |
822
+269
| +49% | +$63.8K |
|
1213
LSB Industries
LXU
$579M
| $195K | ﹤0.01% |
+17,702
| New | +$195K |
|
1214
ProShares UltraPro Short 20+ Year Treasury
TTT
$22M
| $195K | ﹤0.01% |
6,322
-15,479
| -71% | -$477K |
|
|
EVLO
1215
DELISTED
Evelo Biosciences, Inc. Common Stock
EVLO
| $194K | ﹤0.01% |
1,605
+1,601
| +40,025% | +$194K |
|
1216
iShares Self-Driving EV and Tech ETF
IDRV
$161M
| $193K | ﹤0.01% |
+3,570
| New | +$193K |
|
1217
Children's Place
PLCE
$151M
| $193K | ﹤0.01% |
2,437
-181
| -7% | -$14.3K |
|
1218
Vericel Corp
VCEL
$1.62B
| $193K | ﹤0.01% |
4,915
+3,609
| +276% | +$142K |
|
|
ERF
1219
DELISTED
Enerplus Corporation
ERF
| $192K | ﹤0.01% |
18,220
+9,484
| +109% | +$99.9K |
|
1220
BARK
BARK
$150M
| $190K | ﹤0.01% |
45,260
-101,521
| -69% | -$426K |
|
1221
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$3.48B
| $190K | ﹤0.01% |
+3,577
| New | +$190K |
|
1222
RPC Inc
RES
$997M
| $190K | ﹤0.01% |
41,957
+30,081
| +253% | +$136K |
|
1223
Build-A-Bear
BBW
$983M
| $189K | ﹤0.01% |
+9,694
| New | +$189K |
|
1224
Dogness International Corp
DOGZ
$185M
| $189K | ﹤0.01% |
+1,126
| New | +$189K |
|
|
VXRT
1225
DELISTED
Vaxart
VXRT
| $189K | ﹤0.01% |
30,161
-22,117
| -42% | -$139K |
|