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 |
Invesco QQQ Trust
QQQ
|
+$85.4M |
| 2 |
SPDR Gold Trust
GLD
|
+$75.9M |
| 3 |
NVIDIA
NVDA
|
+$42.6M |
| 4 |
Netflix
NFLX
|
+$41.1M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$65.7M |
| 2 |
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
|
+$25.5M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
+$24.4M |
| 4 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$24.3M |
| 5 |
Broadcom
AVGO
|
+$21.3M |
Sector Composition
| 1 | Technology | 15.2% |
| 2 | Consumer Discretionary | 14.52% |
| 3 | Communication Services | 10.57% |
| 4 | Healthcare | 8.15% |
| 5 | Financials | 7.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1201
Patterson-UTI
PTEN
$2.14B
| $56K | ﹤0.01% |
16,246
+10,542
| +185% | +$36.3K |
|
|
SBNY
1202
DELISTED
Signature Bank
SBNY
| $56K | ﹤0.01% |
530
-1,331
| -72% | -$141K |
|
1203
Gossamer Bio
GOSS
$787M
| $55K | ﹤0.01% |
4,254
-38,601
| -90% | -$499K |
|
1204
MGP Ingredients
MGPI
$603M
| $55K | ﹤0.01% |
+1,506
| New | +$55K |
|
1205
Paysign
PAYS
$290M
| $55K | ﹤0.01% |
5,692
+4,308
| +311% | +$41.6K |
|
1206
Teekay Tankers
TNK
$1.79B
| $55K | ﹤0.01% |
+4,317
| New | +$55K |
|
|
ORBC
1207
DELISTED
ORBCOMM, Inc.
ORBC
| $55K | ﹤0.01% |
14,384
+12,718
| +763% | +$48.6K |
|
1208
Andersons Inc
ANDE
$1.4B
| $54K | ﹤0.01% |
+3,964
| New | +$54K |
|
|
ASA
1209
ASA Gold and Precious Metals
ASA
$768M
| $54K | ﹤0.01% |
3,085
+1,018
| +49% | +$17.8K |
|
1210
Navios Maritime Partners
NMM
$1.4B
| $54K | ﹤0.01% |
5,565
+3,685
| +196% | +$35.8K |
|
1211
Invesco India ETF
PIN
$213M
| $54K | ﹤0.01% |
+3,162
| New | +$54K |
|
1212
Altisource Portfolio Solutions
ASPS
$124M
| $53K | ﹤0.01% |
452
-321
| -42% | -$37.6K |
|
1213
First Trust NASDAQ Cybersecurity ETF
CIBR
$10.9B
| $53K | ﹤0.01% |
1,606
+1,409
| +715% | +$46.5K |
|
1214
Fossil Group
FOSL
$167M
| $53K | ﹤0.01% |
+11,413
| New | +$53K |
|
1215
MacroGenics
MGNX
$104M
| $53K | ﹤0.01% |
1,930
-29
| -1% | -$796 |
|
1216
Preferred Bank
PFBC
$1.17B
| $53K | ﹤0.01% |
+1,240
| New | +$53K |
|
1217
Avita Medical
RCEL
$118M
| $53K | ﹤0.01% |
+1,765
| New | +$53K |
|
1218
Olympic Steel
ZEUS
$378M
| $53K | ﹤0.01% |
4,516
+2,814
| +165% | +$33K |
|
1219
Clearway Energy Class C
CWEN
$3.37B
| $52K | ﹤0.01% |
2,256
+1,365
| +153% | +$31.5K |
|
1220
ProShares UltraShort Financials
SKF
$9.89M
| $52K | ﹤0.01% |
256
-24
| -9% | -$4.88K |
|
1221
Telefonica
TEF
$30.3B
| $52K | ﹤0.01% |
12,942
+549
| +4% | +$2.21K |
|
|
SPWR
1222
DELISTED
SunPower Corporation Common Stock
SPWR
| $52K | ﹤0.01% |
10,410
-23,859
| -70% | -$119K |
|
1223
Boot Barn
BOOT
$5.76B
| $51K | ﹤0.01% |
2,409
-3,932
| -62% | -$83.2K |
|
1224
Bruker
BRKR
$4.87B
| $51K | ﹤0.01% |
+1,259
| New | +$51K |
|
1225
Pixelworks
PXLW
$66.5M
| $51K | ﹤0.01% |
+1,336
| New | +$51K |
|