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 |
AMC Entertainment Holdings
AMC
|
$84.2M |
| 2 |
NVIDIA
NVDA
|
$35.3M |
| 3 |
AT&T
T
|
$28.5M |
| 4 |
Micron Technology
MU
|
$23.1M |
| 5 |
Baidu
BIDU
|
$22.7M |
Top Sells
| 1 |
Palantir
PLTR
|
$29.3M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$26.2M |
| 3 |
PARA
Paramount Global Class B
PARA
|
$21.7M |
| 4 |
Exxon Mobil
XOM
|
$18M |
| 5 |
Lam Research
LRCX
|
$16.3M |
Sector Composition
| 1 | Technology | 17.69% |
| 2 | Consumer Discretionary | 14.79% |
| 3 | Communication Services | 10.15% |
| 4 | Healthcare | 9.69% |
| 5 | Financials | 9.42% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
226
Direxion Daily Semiconductor Bull 3X Shares
SOXL
$10.7B
| $2.61M | ﹤0.01% |
58,537
+6,777
| +13% | +$302K |
|
227
O'Reilly Automotive
ORLY
$88.1B
| $2.6M | ﹤0.01% |
4,594
+3,284
| +251% | +$1.86M |
|
228
B. Riley Financial
RILY
$164M
| $2.6M | ﹤0.01% |
34,425
+19,537
| +131% | +$1.47M |
|
229
Vipshop
VIPS
$8.36B
| $2.59M | ﹤0.01% |
129,121
+126,598
| +5,018% | +$2.54M |
|
230
Alnylam Pharmaceuticals
ALNY
$58.6B
| $2.59M | ﹤0.01% |
15,284
+898
| +6% | +$152K |
|
231
FTAI Aviation
FTAI
$15.5B
| $2.57M | ﹤0.01% |
76,626
+32,083
| +72% | +$1.08M |
|
|
DQ
232
Daqo New Energy
DQ
$1.78B
| $2.55M | ﹤0.01% |
39,286
+25,854
| +192% | +$1.68M |
|
|
NKLA
233
DELISTED
Nikola Corporation Common Stock
NKLA
| $2.53M | ﹤0.01% |
140,302
-4,607
| -3% | -$82.9K |
|
234
AngloGold Ashanti
AU
$29.9B
| $2.53M | ﹤0.01% |
136,053
-31,601
| -19% | -$587K |
|
235
Cummins
CMI
$54B
| $2.52M | ﹤0.01% |
10,347
+1,447
| +16% | +$353K |
|
236
NetEase
NTES
$85.4B
| $2.51M | ﹤0.01% |
21,821
-13,229
| -38% | -$1.52M |
|
237
Incyte
INCY
$17B
| $2.49M | ﹤0.01% |
29,647
+12,644
| +74% | +$1.06M |
|
238
FibroGen
FGEN
$48.4M
| $2.48M | ﹤0.01% |
+93,262
| New | +$2.48M |
|
239
Canadian Natural Resources
CNQ
$65B
| $2.48M | ﹤0.01% |
68,304
+43,806
| +179% | +$1.59M |
|
240
Melco Resorts & Entertainment
MLCO
$3.95B
| $2.46M | ﹤0.01% |
148,481
-30,125
| -17% | -$499K |
|
|
HUYA
241
Huya Inc
HUYA
$841M
| $2.46M | ﹤0.01% |
139,133
+98,086
| +239% | +$1.73M |
|
|
CS
242
DELISTED
Credit Suisse Group
CS
| $2.45M | ﹤0.01% |
233,517
+23,996
| +11% | +$252K |
|
243
Buckle
BKE
$2.96B
| $2.45M | ﹤0.01% |
49,147
+48,935
| +23,083% | +$2.43M |
|
244
BioNTech
BNTX
$24.1B
| $2.44M | ﹤0.01% |
+10,890
| New | +$2.44M |
|
|
TTM
245
DELISTED
Tata Motors Limited
TTM
| $2.43M | ﹤0.01% |
106,722
+58,469
| +121% | +$1.33M |
|
246
Ally Financial
ALLY
$12.6B
| $2.42M | ﹤0.01% |
+48,643
| New | +$2.42M |
|
247
Costco
COST
$421B
| $2.42M | ﹤0.01% |
6,123
-15,278
| -71% | -$6.04M |
|
248
Citizens Financial Group
CFG
$22.3B
| $2.42M | ﹤0.01% |
52,654
+42,034
| +396% | +$1.93M |
|
249
Corsair Gaming
CRSR
$925M
| $2.41M | ﹤0.01% |
+72,437
| New | +$2.41M |
|
250
Direxion Daily S&P Oil & Gas Exp & Prod Bull 2X Shares
GUSH
$251M
| $2.4M | ﹤0.01% |
24,959
-27,542
| -52% | -$2.65M |
|