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 |
Advanced Micro Devices
AMD
|
$17.7M |
| 2 |
iShares MSCI EAFE ETF
EFA
|
$10.1M |
| 3 |
NIO
NIO
|
$7.66M |
| 4 |
Alibaba
BABA
|
$7.54M |
| 5 |
Micron Technology
MU
|
$6.73M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$101M |
| 2 |
SPDR Gold Trust
GLD
|
$15.2M |
| 3 |
Amazon
AMZN
|
$9.5M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$8.76M |
| 5 |
Technology Select Sector SPDR Fund
XLK
|
$7.41M |
Sector Composition
| 1 | Technology | 18.66% |
| 2 | Consumer Discretionary | 14.99% |
| 3 | Communication Services | 10.06% |
| 4 | Healthcare | 9.68% |
| 5 | Financials | 9.59% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
301
Electronic Arts
EA
$42.2B
| $1.98M | ﹤0.01% |
13,899
+1,134
| +9% | +$161K |
|
|
PENG
302
Penguin Solutions, Inc. Ordinary Shares
PENG
$1.3B
| $1.97M | ﹤0.01% |
83,618
+12,132
| +17% | +$286K |
|
|
AMRS
303
DELISTED
Amyris Inc.
AMRS
| $1.97M | ﹤0.01% |
116,090
-2,869
| -2% | -$48.7K |
|
304
Corteva
CTVA
$49.1B
| $1.97M | ﹤0.01% |
44,047
+3,193
| +8% | +$142K |
|
305
Camping World
CWH
$1.12B
| $1.96M | ﹤0.01% |
47,471
+3,865
| +9% | +$160K |
|
306
UWM Holdings
UWMC
$1.38B
| $1.96M | ﹤0.01% |
238,927
-269
| -0.1% | -$2.21K |
|
307
Elastic
ESTC
$9.21B
| $1.96M | ﹤0.01% |
13,429
+118
| +0.9% | +$17.2K |
|
308
Playboy, Inc. Common Stock
PLBY
$187M
| $1.96M | ﹤0.01% |
51,949
-519
| -1% | -$19.6K |
|
|
TPGY
309
DELISTED
TPG Pace Beneficial Finance Corp.
TPGY
| $1.95M | ﹤0.01% |
150,191
-100
| -0.1% | -$1.3K |
|
310
Thomson Reuters
TRI
$78.7B
| $1.95M | ﹤0.01% |
18,904
+193
| +1% | +$19.9K |
|
311
US Global Jets ETF
JETS
$839M
| $1.94M | ﹤0.01% |
78,958
-1,318
| -2% | -$32.4K |
|
312
PNC Financial Services
PNC
$80.5B
| $1.94M | ﹤0.01% |
10,095
+101
| +1% | +$19.4K |
|
313
Baker Hughes
BKR
$44.9B
| $1.9M | ﹤0.01% |
80,804
+30,072
| +59% | +$708K |
|
314
ARK Autonomous Technology & Robotics ETF
ARKQ
$1.3B
| $1.9M | ﹤0.01% |
22,240
+17
| +0.1% | +$1.45K |
|
315
Linde
LIN
$220B
| $1.9M | ﹤0.01% |
6,528
+241
| +4% | +$70.1K |
|
316
Vail Resorts
MTN
$5.87B
| $1.9M | ﹤0.01% |
5,876
+570
| +11% | +$184K |
|
317
Teradyne
TER
$19.1B
| $1.89M | ﹤0.01% |
14,583
-1,300
| -8% | -$168K |
|
|
SAVE
318
DELISTED
Spirit Airlines, Inc.
SAVE
| $1.88M | ﹤0.01% |
60,142
+17,656
| +42% | +$552K |
|
319
Vertex Pharmaceuticals
VRTX
$102B
| $1.88M | ﹤0.01% |
9,300
-40
| -0.4% | -$8.09K |
|
|
INOV
320
DELISTED
Inovalon Holdings, Inc. Class A Common Stock
INOV
| $1.88M | ﹤0.01% |
55,427
-3,054
| -5% | -$103K |
|
321
Tapestry
TPR
$21.7B
| $1.87M | ﹤0.01% |
44,085
+16,612
| +60% | +$706K |
|
|
ZNGA
322
DELISTED
ZYNGA INC. CL A COMMON
ZNGA
| $1.86M | ﹤0.01% |
172,502
+32,632
| +23% | +$351K |
|
323
NOV
NOV
$4.95B
| $1.85M | ﹤0.01% |
118,218
+18,546
| +19% | +$290K |
|
324
Omeros
OMER
$284M
| $1.83M | ﹤0.01% |
117,097
+3,496
| +3% | +$54.7K |
|
325
Devon Energy
DVN
$22.1B
| $1.83M | ﹤0.01% |
61,135
+9,911
| +19% | +$297K |
|