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
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
DOC
1051
DELISTED
PHYSICIANS REALTY TRUST
DOC
| $128K | ﹤0.01% |
+7,351
| New | +$128K |
|
1052
The Honest Company
HNST
$440M
| $127K | ﹤0.01% |
43,626
-64,265
| -60% | -$187K |
|
1053
Direxion Daily Homebuilders & Supplies Bull 3X Shares
NAIL
$652M
| $127K | ﹤0.01% |
5,212
-15,064
| -74% | -$367K |
|
|
LOGC
1054
DELISTED
ContextLogic
LOGC
| $127K | ﹤0.01% |
2,654
+2,617
| +7,073% | +$125K |
|
|
MODN
1055
DELISTED
MODEL N, INC.
MODN
| $127K | ﹤0.01% |
5,003
+4,493
| +881% | +$114K |
|
|
MN
1056
DELISTED
MANNING & NAPIER, INC.
MN
| $127K | ﹤0.01% |
10,196
+4,066
| +66% | +$50.6K |
|
|
PAYA
1057
DELISTED
Paya Holdings Inc. Class A Common Stock
PAYA
| $126K | ﹤0.01% |
19,297
-11,990
| -38% | -$78.3K |
|
1058
Aldeyra Therapeutics
ALDX
$333M
| $124K | ﹤0.01% |
31,249
-106,492
| -77% | -$423K |
|
1059
Costamare
CMRE
$1.46B
| $124K | ﹤0.01% |
10,256
-78,944
| -89% | -$954K |
|
1060
iShares MSCI Italy ETF
EWI
$728M
| $124K | ﹤0.01% |
+5,183
| New | +$124K |
|
1061
Veru
VERU
$56.6M
| $124K | ﹤0.01% |
+1,102
| New | +$124K |
|
1062
Sprinklr
CXM
$1.88B
| $123K | ﹤0.01% |
12,256
-30,292
| -71% | -$304K |
|
|
DESP
1063
DELISTED
Despegar.com
DESP
| $123K | ﹤0.01% |
15,256
-1,990
| -12% | -$16K |
|
1064
PharmaCyte Biotech
PMCB
$6.86M
| $123K | ﹤0.01% |
+54,927
| New | +$123K |
|
|
API
1065
Agora
API
$337M
| $122K | ﹤0.01% |
18,681
+12,606
| +208% | +$82.3K |
|
1066
Best Buy
BBY
$16.1B
| $122K | ﹤0.01% |
+1,884
| New | +$122K |
|
1067
Hudson Technologies
HDSN
$441M
| $121K | ﹤0.01% |
16,197
-13,587
| -46% | -$102K |
|
1068
Southwest Gas
SWX
$5.67B
| $121K | ﹤0.01% |
+1,393
| New | +$121K |
|
|
CELL
1069
DELISTED
PhenomeX Inc. Common Stock
CELL
| $121K | ﹤0.01% |
24,499
+22,455
| +1,099% | +$111K |
|
1070
Algonquin Power & Utilities
AQN
$4.3B
| $120K | ﹤0.01% |
+8,954
| New | +$120K |
|
1071
Fidelity MSCI Energy Index ETF
FENY
$1.45B
| $120K | ﹤0.01% |
6,224
+2,764
| +80% | +$53.3K |
|
1072
Harrow
HROW
$1.44B
| $120K | ﹤0.01% |
16,523
+6,936
| +72% | +$50.4K |
|
|
WRK
1073
DELISTED
WestRock Company
WRK
| $120K | ﹤0.01% |
3,025
-10,772
| -78% | -$427K |
|
1074
Beyond Meat
BYND
$199M
| $119K | ﹤0.01% |
5,010
-94,149
| -95% | -$2.24M |
|
1075
Carlisle Companies
CSL
$16.2B
| $119K | ﹤0.01% |
501
-1,011
| -67% | -$240K |
|