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
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
901
Lakeland Industries
LAKE
$131M
| $144K | ﹤0.01% |
9,897
-2,362
| -19% | -$34.4K |
|
902
Tecnoglass
TGLS
$3.36B
| $144K | ﹤0.01% |
3,441
+1,374
| +66% | +$57.5K |
|
903
iShares MSCI Chile ETF
ECH
$705M
| $143K | ﹤0.01% |
4,976
-7,618
| -60% | -$219K |
|
904
Radware
RDWR
$1.1B
| $143K | ﹤0.01% |
6,650
-33,049
| -83% | -$711K |
|
905
Hudbay
HBM
$5.33B
| $142K | ﹤0.01% |
27,142
-37,282
| -58% | -$195K |
|
906
Sundial Growers
SNDL
$607M
| $142K | ﹤0.01% |
89,084
-40,083
| -31% | -$63.9K |
|
907
ProShares UltraPro Russell2000
URTY
$393M
| $142K | ﹤0.01% |
+3,773
| New | +$142K |
|
908
Warby Parker
WRBY
$3.29B
| $142K | ﹤0.01% |
13,476
-21,727
| -62% | -$229K |
|
909
Redwire
RDW
$1.19B
| $141K | ﹤0.01% |
46,719
+35,995
| +336% | +$109K |
|
910
Avidity Biosciences
RNA
$5.97B
| $141K | ﹤0.01% |
9,247
+7,941
| +608% | +$121K |
|
911
JFrog
FROG
$5.8B
| $140K | ﹤0.01% |
7,151
-17,382
| -71% | -$340K |
|
912
ProShares Ultra Technology
ROM
$811M
| $138K | ﹤0.01% |
+3,975
| New | +$138K |
|
913
Sea Limited
SE
$114B
| $138K | ﹤0.01% |
1,600
-58,193
| -97% | -$5.02M |
|
914
Celestica
CLS
$29.1B
| $137K | ﹤0.01% |
10,655
+7,302
| +218% | +$93.9K |
|
915
BioXcel Therapeutics
BTAI
$56.4M
| $135K | ﹤0.01% |
455
+297
| +188% | +$88.1K |
|
916
Funko
FNKO
$184M
| $135K | ﹤0.01% |
14,420
-8,930
| -38% | -$83.6K |
|
917
MacroGenics
MGNX
$109M
| $135K | ﹤0.01% |
18,958
+669
| +4% | +$4.76K |
|
918
Playtika
PLTK
$1.39B
| $134K | ﹤0.01% |
+11,947
| New | +$134K |
|
|
BERY
919
DELISTED
Berry Global Group, Inc.
BERY
| $134K | ﹤0.01% |
2,495
-37,161
| -94% | -$2M |
|
920
Altisource Portfolio Solutions
ASPS
$125M
| $133K | ﹤0.01% |
3,621
+472
| +15% | +$17.3K |
|
921
Relay Therapeutics
RLAY
$700M
| $133K | ﹤0.01% |
8,083
+7,412
| +1,105% | +$122K |
|
922
Tower Semiconductor
TSEM
$7.57B
| $133K | ﹤0.01% |
+3,145
| New | +$133K |
|
923
Customers Bancorp
CUBI
$2.35B
| $132K | ﹤0.01% |
+7,153
| New | +$132K |
|
924
ProShares UltraShort Energy
DUG
$10.6M
| $132K | ﹤0.01% |
2,543
+62
| +2% | +$3.22K |
|
|
HUYA
925
Huya Inc
HUYA
$740M
| $132K | ﹤0.01% |
36,817
-49,305
| -57% | -$177K |
|