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
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
326
SPDR S&P Homebuilders ETF
XHB
$1.92B
| $1.31M | ﹤0.01% |
22,777
-4,296
| -16% | -$247K |
|
327
The Mosaic Company
MOS
$10.3B
| $1.31M | ﹤0.01% |
56,764
+38,047
| +203% | +$875K |
|
328
Qorvo
QRVO
$8.53B
| $1.31M | ﹤0.01% |
7,855
-3,293
| -30% | -$548K |
|
329
Vanguard FTSE Developed Markets ETF
VEA
$172B
| $1.31M | ﹤0.01% |
+27,666
| New | +$1.31M |
|
330
iShares US Home Construction ETF
ITB
$3.26B
| $1.3M | ﹤0.01% |
23,312
-83,833
| -78% | -$4.67M |
|
331
ProShares UltraPro QQQ
TQQQ
$27.1B
| $1.29M | ﹤0.01% |
28,460
-45,880
| -62% | -$2.08M |
|
332
Cheniere Energy
LNG
$51.3B
| $1.28M | ﹤0.01% |
+21,400
| New | +$1.28M |
|
|
MRO
333
DELISTED
Marathon Oil Corporation
MRO
| $1.28M | ﹤0.01% |
192,249
+115,621
| +151% | +$771K |
|
|
NUAN
334
DELISTED
Nuance Communications, Inc.
NUAN
| $1.28M | ﹤0.01% |
29,073
-21,919
| -43% | -$966K |
|
|
AMED
335
DELISTED
Amedisys
AMED
| $1.28M | ﹤0.01% |
+4,352
| New | +$1.28M |
|
336
PagerDuty
PD
$1.6B
| $1.27M | ﹤0.01% |
30,545
+23,029
| +306% | +$960K |
|
337
Dayforce
DAY
$10.9B
| $1.27M | ﹤0.01% |
+11,925
| New | +$1.27M |
|
338
Monster Beverage
MNST
$61.5B
| $1.27M | ﹤0.01% |
27,460
+21,894
| +393% | +$1.01M |
|
|
LGF.A
339
DELISTED
Lions Gate Entertainment Corp. Class A Voting Shares
LGF.A
| $1.26M | ﹤0.01% |
111,032
-2,446
| -2% | -$27.8K |
|
340
Wolfspeed
WOLF
$285M
| $1.26M | ﹤0.01% |
11,888
+17
| +0.1% | +$1.8K |
|
341
Tyson Foods
TSN
$19.9B
| $1.25M | ﹤0.01% |
19,428
-39,473
| -67% | -$2.54M |
|
342
Groupon
GRPN
$920M
| $1.25M | ﹤0.01% |
32,889
-3,942
| -11% | -$150K |
|
343
AdvisorShares Pure Cannabis ETF
YOLO
$42.6M
| $1.25M | ﹤0.01% |
73,375
+70,991
| +2,978% | +$1.21M |
|
|
JO
344
DELISTED
iPath Series B Bloomberg Coffee Subindex Total ReturnSM ETN
JO
| $1.25M | ﹤0.01% |
33,334
+16,048
| +93% | +$600K |
|
345
Lear
LEA
$5.91B
| $1.24M | ﹤0.01% |
+7,801
| New | +$1.24M |
|
|
SWIR
346
DELISTED
Sierra Wireless
SWIR
| $1.23M | ﹤0.01% |
+84,204
| New | +$1.23M |
|
|
LFC
347
DELISTED
China Life Insurance Company Ltd.
LFC
| $1.23M | ﹤0.01% |
111,203
+55,158
| +98% | +$610K |
|
348
Warrior Met Coal
HCC
$3.05B
| $1.23M | ﹤0.01% |
+57,616
| New | +$1.23M |
|
|
API
349
Agora
API
$334M
| $1.23M | ﹤0.01% |
30,973
+10,359
| +50% | +$410K |
|
|
PRSP
350
DELISTED
Perspecta Inc. Common Stock
PRSP
| $1.23M | ﹤0.01% |
50,888
+23,440
| +85% | +$564K |
|