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 | |
|---|---|---|---|---|---|---|
876
American Superconductor
AMSC
$2.47B
| $387K | ﹤0.01% |
35,653
+14,156
| +66% | +$154K |
|
|
CIO
877
City Office REIT
CIO
$280M
| $386K | ﹤0.01% |
+19,602
| New | +$386K |
|
|
TE
878
T1 Energy Inc.
TE
$293M
| $386K | ﹤0.01% |
+34,584
| New | +$386K |
|
879
EPR Properties
EPR
$4.31B
| $384K | ﹤0.01% |
8,104
-29,793
| -79% | -$1.41M |
|
|
VLDR
880
DELISTED
Velodyne Lidar, Inc. Common Stock
VLDR
| $383K | ﹤0.01% |
82,722
+24,759
| +43% | +$115K |
|
881
Chart Industries
GTLS
$8.98B
| $381K | ﹤0.01% |
2,392
+2,305
| +2,649% | +$367K |
|
882
CAE Inc
CAE
$8.55B
| $380K | ﹤0.01% |
15,077
+14,636
| +3,319% | +$369K |
|
883
Riskified
RSKD
$732M
| $380K | ﹤0.01% |
+48,429
| New | +$380K |
|
|
DMTK
884
DELISTED
DermTech, Inc. Common Stock
DMTK
| $379K | ﹤0.01% |
24,028
+15,362
| +177% | +$242K |
|
885
Cantaloupe
CTLP
$792M
| $377K | ﹤0.01% |
+42,556
| New | +$377K |
|
886
Karyopharm Therapeutics
KPTI
$57.6M
| $377K | ﹤0.01% |
+3,916
| New | +$377K |
|
|
ASTR
887
DELISTED
Astra Space, Inc. Class A Common Stock
ASTR
| $377K | ﹤0.01% |
3,629
+641
| +21% | +$66.6K |
|
888
Hyatt Hotels
H
$13.9B
| $375K | ﹤0.01% |
+3,912
| New | +$375K |
|
|
LAND
889
Gladstone Land Corp
LAND
$322M
| $375K | ﹤0.01% |
+11,115
| New | +$375K |
|
890
Sportsman's Warehouse
SPWH
$118M
| $375K | ﹤0.01% |
+31,837
| New | +$375K |
|
|
OIL
891
DELISTED
iPath Pure Beta Crude Oil ETN
OIL
| $375K | ﹤0.01% |
+15,972
| New | +$375K |
|
892
Aldeyra Therapeutics
ALDX
$334M
| $374K | ﹤0.01% |
93,739
+72,929
| +350% | +$291K |
|
893
Nasdaq
NDAQ
$55B
| $371K | ﹤0.01% |
+5,310
| New | +$371K |
|
|
PLAN
894
DELISTED
Anaplan, Inc.
PLAN
| $371K | ﹤0.01% |
+8,108
| New | +$371K |
|
895
A10 Networks
ATEN
$1.29B
| $370K | ﹤0.01% |
22,347
+17,857
| +398% | +$296K |
|
896
KNOT Offshore Partners
KNOP
$299M
| $369K | ﹤0.01% |
+27,657
| New | +$369K |
|
897
Viper Energy
VNOM
$6.58B
| $369K | ﹤0.01% |
17,329
+14,993
| +642% | +$319K |
|
898
Helen of Troy
HELE
$567M
| $367K | ﹤0.01% |
1,504
+971
| +182% | +$237K |
|
899
YPF
YPF
$11.1B
| $367K | ﹤0.01% |
96,296
-65,865
| -41% | -$251K |
|
900
Beazer Homes USA
BZH
$775M
| $365K | ﹤0.01% |
15,749
+2,171
| +16% | +$50.3K |
|