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 |
Alibaba
BABA
|
+$48.9M |
| 2 |
Boeing
BA
|
+$25.8M |
| 3 |
SPDR Gold Trust
GLD
|
+$18.2M |
| 4 |
Biogen
BIIB
|
+$15.8M |
| 5 |
FedEx
FDX
|
+$13.6M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$62.1M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$36.4M |
| 3 |
Industrial Select Sector SPDR Fund
XLI
|
+$17.5M |
| 4 |
Netflix
NFLX
|
+$16.3M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$14.6M |
Sector Composition
| 1 | Consumer Discretionary | 16.74% |
| 2 | Technology | 16.32% |
| 3 | Healthcare | 12.17% |
| 4 | Industrials | 12.14% |
| 5 | Communication Services | 7.05% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
TGP
801
DELISTED
Teekay LNG Partners L.P.
TGP
| $125K | ﹤0.01% |
9,229
+8,298
| +891% | +$112K |
|
802
KraneShares Bosera MSCI China A 50 Connect Index ETF
KBA
$241M
| $124K | ﹤0.01% |
4,168
-6,643
| -61% | -$198K |
|
803
Omega Healthcare
OHI
$12.5B
| $124K | ﹤0.01% |
+2,981
| New | +$124K |
|
|
MEET
804
DELISTED
The Meet Group, Inc. Common Stock
MEET
| $124K | ﹤0.01% |
38,152
+35,509
| +1,344% | +$115K |
|
805
Aurinia Pharmaceuticals
AUPH
$1.65B
| $123K | ﹤0.01% |
23,213
-6,022
| -21% | -$31.9K |
|
806
Dynavax Technologies
DVAX
$1.13B
| $123K | ﹤0.01% |
34,454
+23,583
| +217% | +$84.2K |
|
807
Exelixis
EXEL
$10.4B
| $123K | ﹤0.01% |
6,962
+673
| +11% | +$11.9K |
|
808
Primerica
PRI
$8.87B
| $123K | ﹤0.01% |
+968
| New | +$123K |
|
|
WLH
809
DELISTED
WILLIAM LYON HOMES
WLH
| $123K | ﹤0.01% |
6,056
+5,154
| +571% | +$105K |
|
810
Badger Meter
BMI
$5.33B
| $122K | ﹤0.01% |
2,282
-236
| -9% | -$12.6K |
|
811
Compugen
CGEN
$129M
| $122K | ﹤0.01% |
29,033
-18,717
| -39% | -$78.7K |
|
812
Interpublic Group of Companies
IPG
$9.7B
| $122K | ﹤0.01% |
+5,665
| New | +$122K |
|
813
Daktronics
DAKT
$1.1B
| $121K | ﹤0.01% |
16,511
-8,074
| -33% | -$59.2K |
|
814
Gray Television
GTN
$588M
| $121K | ﹤0.01% |
7,460
+6,773
| +986% | +$110K |
|
|
TVRD
815
Tvardi Therapeutics, Inc. Common Stock
TVRD
$328M
| $121K | ﹤0.01% |
+184
| New | +$121K |
|
|
AVP
816
DELISTED
Avon Products, Inc.
AVP
| $121K | ﹤0.01% |
+27,547
| New | +$121K |
|
|
PS
817
DELISTED
Pluralsight, Inc. Class A Common Stock
PS
| $120K | ﹤0.01% |
+7,175
| New | +$120K |
|
|
SORL
818
DELISTED
SORL Auto Parts, Inc.
SORL
| $120K | ﹤0.01% |
38,101
+23,580
| +162% | +$74.3K |
|
819
Denali Therapeutics
DNLI
$2.18B
| $119K | ﹤0.01% |
7,815
+7,695
| +6,413% | +$117K |
|
820
MBIA
MBI
$385M
| $119K | ﹤0.01% |
12,906
-8,980
| -41% | -$82.8K |
|
821
Tenable Holdings
TENB
$3.66B
| $119K | ﹤0.01% |
5,321
+4,644
| +686% | +$104K |
|
822
Honda
HMC
$44.3B
| $118K | ﹤0.01% |
4,558
+4,470
| +5,080% | +$116K |
|
823
TherapeuticsMD
TXMD
$13.1M
| $118K | ﹤0.01% |
+653
| New | +$118K |
|
|
WMGI
824
DELISTED
Wright Medical Group Inc
WMGI
| $118K | ﹤0.01% |
+5,727
| New | +$118K |
|
825
Photronics
PLAB
$1.33B
| $117K | ﹤0.01% |
10,791
+10,241
| +1,862% | +$111K |
|