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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
976
iShares MSCI India ETF
INDA
$9.5B
| $80K | ﹤0.01% |
+2,564
| New | +$80K |
|
977
US Global Jets ETF
JETS
$819M
| $80K | ﹤0.01% |
+2,872
| New | +$80K |
|
|
HAYN
978
DELISTED
Haynes International, Inc.
HAYN
| $79K | ﹤0.01% |
2,096
+1,939
| +1,235% | +$73.1K |
|
|
KZ
979
DELISTED
KongZhong Corporation
KZ
| $79K | ﹤0.01% |
+10,747
| New | +$79K |
|
|
REV
980
DELISTED
Revlon, Inc.
REV
| $79K | ﹤0.01% |
2,844
+2,595
| +1,042% | +$72.1K |
|
981
Foster
FSTR
$295M
| $78K | ﹤0.01% |
6,286
+5,640
| +873% | +$70K |
|
982
Pinnacle Financial Partners
PNFP
$7.52B
| $78K | ﹤0.01% |
+1,178
| New | +$78K |
|
983
United Natural Foods
UNFI
$1.84B
| $78K | ﹤0.01% |
+1,806
| New | +$78K |
|
984
Braskem
BAK
$1.35B
| $77K | ﹤0.01% |
3,815
+3,145
| +469% | +$63.5K |
|
|
CLLS
985
Cellectis
CLLS
$309M
| $77K | ﹤0.01% |
+3,215
| New | +$77K |
|
986
Cheniere Energy
CQP
$26B
| $77K | ﹤0.01% |
2,411
-44,606
| -95% | -$1.42M |
|
987
Jones Lang LaSalle
JLL
$15B
| $76K | ﹤0.01% |
689
-1,436
| -68% | -$158K |
|
988
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.2B
| $76K | ﹤0.01% |
+408
| New | +$76K |
|
989
Veracyte
VCYT
$2.5B
| $76K | ﹤0.01% |
8,321
-51,461
| -86% | -$470K |
|
990
NovaGold Resources
NG
$2.86B
| $75K | ﹤0.01% |
+15,440
| New | +$75K |
|
|
PFPT
991
DELISTED
Proofpoint, Inc.
PFPT
| $75K | ﹤0.01% |
1,021
-406
| -28% | -$29.8K |
|
992
ReposiTrak
TRAK
$313M
| $74K | ﹤0.01% |
+6,022
| New | +$74K |
|
|
ESV
993
DELISTED
Ensco Rowan plc
ESV
| $74K | ﹤0.01% |
2,092
+1,088
| +108% | +$38.5K |
|
994
Hillenbrand
HI
$1.7B
| $73K | ﹤0.01% |
2,054
-692
| -25% | -$24.6K |
|
995
iShares US Telecommunications ETF
IYZ
$604M
| $73K | ﹤0.01% |
2,287
-286
| -11% | -$9.13K |
|
996
KNOT Offshore Partners
KNOP
$313M
| $73K | ﹤0.01% |
+3,136
| New | +$73K |
|
997
OGE Energy
OGE
$8.88B
| $73K | ﹤0.01% |
+2,107
| New | +$73K |
|
998
TherapeuticsMD
TXMD
$12.3M
| $73K | ﹤0.01% |
204
+8
| +4% | +$2.86K |
|
|
AUY
999
DELISTED
Yamana Gold, Inc.
AUY
| $73K | ﹤0.01% |
26,640
+1,269
| +5% | +$3.48K |
|
|
RFP
1000
DELISTED
Resolute Forest Products Inc.
RFP
| $73K | ﹤0.01% |
13,410
-13,795
| -51% | -$75.1K |
|