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 |
NVIDIA
NVDA
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1101
Endava
DAVA
$543M
| $124K | ﹤0.01% |
8,099
+7,840
| +3,027% | +$120K |
|
|
EFC
1102
Ellington Financial
EFC
$1.35B
| $124K | ﹤0.01% |
+9,612
| New | +$124K |
|
1103
Schwab 1000 Index ETF
SCHK
$4.6B
| $123K | ﹤0.01% |
+4,140
| New | +$123K |
|
1104
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$33.9M
| $123K | ﹤0.01% |
+2,114
| New | +$123K |
|
1105
CureVac
CVAC
$1.21B
| $122K | ﹤0.01% |
22,495
+9,019
| +67% | +$48.9K |
|
1106
ProShares UltraShort FTSE Europe
EPV
$15.7M
| $122K | ﹤0.01% |
+4,700
| New | +$122K |
|
1107
Cedar Fair
FUN
$2.2B
| $122K | ﹤0.01% |
4,031
+3,120
| +342% | +$94.4K |
|
1108
ARKO Corp
ARKO
$585M
| $121K | ﹤0.01% |
28,756
+2,613
| +10% | +$11K |
|
1109
Knight Transportation
KNX
$6.97B
| $121K | ﹤0.01% |
2,737
-34,590
| -93% | -$1.53M |
|
1110
El Pollo Loco
LOCO
$313M
| $121K | ﹤0.01% |
11,011
+9,918
| +907% | +$109K |
|
1111
ProShares K-1 Free Crude Oil Strategy ETF
OILK
$69.5M
| $121K | ﹤0.01% |
3,034
+3,028
| +50,467% | +$121K |
|
|
ONC
1112
BeOne Medicines Ltd. American Depositary Shares
ONC
$36.9B
| $121K | ﹤0.01% |
503
-2,514
| -83% | -$605K |
|
1113
Bread Financial
BFH
$2.98B
| $120K | ﹤0.01% |
2,107
+2,061
| +4,480% | +$117K |
|
1114
Teekay Tankers
TNK
$1.79B
| $120K | ﹤0.01% |
2,892
+1,222
| +73% | +$50.7K |
|
1115
iShares MSCI Turkey ETF
TUR
$160M
| $120K | ﹤0.01% |
3,726
-9,303
| -71% | -$300K |
|
1116
Cardlytics
CDLX
$61.2M
| $119K | ﹤0.01% |
72,553
+30,183
| +71% | +$49.5K |
|
1117
The RealReal
REAL
$1.08B
| $119K | ﹤0.01% |
25,035
+6,149
| +33% | +$29.2K |
|
1118
FingerMotion
FNGR
$100M
| $118K | ﹤0.01% |
+58,549
| New | +$118K |
|
1119
Paysafe
PSFE
$847M
| $118K | ﹤0.01% |
9,418
+1,888
| +25% | +$23.7K |
|
1120
Biomea Fusion
BMEA
$118M
| $117K | ﹤0.01% |
+65,333
| New | +$117K |
|
1121
WisdomTree Emerging Markets High Dividend Fund
DEM
$3.19B
| $117K | ﹤0.01% |
2,588
+1,033
| +66% | +$46.7K |
|
1122
Everest Group
EG
$14.6B
| $117K | ﹤0.01% |
347
-83
| -19% | -$28K |
|
1123
Illinois Tool Works
ITW
$77.6B
| $117K | ﹤0.01% |
+477
| New | +$117K |
|
1124
Match Group
MTCH
$9.15B
| $117K | ﹤0.01% |
3,794
-42,400
| -92% | -$1.31M |
|
1125
Genmab
GMAB
$17.6B
| $116K | ﹤0.01% |
5,630
-57,846
| -91% | -$1.19M |
|