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 |
Amazon
AMZN
|
+$158M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$69.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$57.4M |
| 4 |
Citigroup
C
|
+$23.4M |
| 5 |
Goldman Sachs
GS
|
+$23M |
Top Sells
| 1 |
Apple
AAPL
|
+$49.8M |
| 2 |
Berkshire Hathaway Class B
BRK.B
|
+$43.2M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$42.2M |
| 4 |
Micron Technology
MU
|
+$26.1M |
| 5 |
Adobe
ADBE
|
+$21M |
Sector Composition
| 1 | Consumer Discretionary | 20.63% |
| 2 | Communication Services | 16.3% |
| 3 | Technology | 12.42% |
| 4 | Industrials | 9.24% |
| 5 | Healthcare | 8.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CNSL
476
DELISTED
Consolidated Communications Holdings, Inc.
CNSL
| $470K | ﹤0.01% |
36,067
+20,662
| +134% | +$269K |
|
|
SGEN
477
DELISTED
Seagen Inc. Common Stock
SGEN
| $470K | ﹤0.01% |
6,095
-5,100
| -46% | -$393K |
|
|
PTLA
478
DELISTED
Portola Pharmaceuticals, Inc.
PTLA
| $468K | ﹤0.01% |
17,577
+1,215
| +7% | +$32.4K |
|
479
ManpowerGroup
MAN
$1.75B
| $467K | ﹤0.01% |
+5,439
| New | +$467K |
|
480
Wabtec
WAB
$32.4B
| $467K | ﹤0.01% |
+4,459
| New | +$467K |
|
|
STI
481
DELISTED
SunTrust Banks, Inc.
STI
| $467K | ﹤0.01% |
7,007
+2,779
| +66% | +$185K |
|
|
SEND
482
DELISTED
SendGrid, Inc.
SEND
| $464K | ﹤0.01% |
12,639
+1,083
| +9% | +$39.8K |
|
483
Under Armour Class C
UA
$2.08B
| $463K | ﹤0.01% |
+23,836
| New | +$463K |
|
484
Regions Financial
RF
$24.1B
| $462K | ﹤0.01% |
25,230
-118,905
| -82% | -$2.18M |
|
|
SFLY
485
DELISTED
Shutterfly, Inc.
SFLY
| $461K | ﹤0.01% |
7,005
+5,914
| +542% | +$389K |
|
486
Aecom
ACM
$16.6B
| $459K | ﹤0.01% |
+14,070
| New | +$459K |
|
487
Charter Communications
CHTR
$36.1B
| $457K | ﹤0.01% |
1,404
-4,688
| -77% | -$1.53M |
|
488
VanEck Oil Services ETF
OIH
$856M
| $455K | ﹤0.01% |
904
-455
| -33% | -$229K |
|
489
Box
BOX
$4.74B
| $453K | ﹤0.01% |
18,980
-20,630
| -52% | -$492K |
|
490
J.M. Smucker
SJM
$11.7B
| $453K | ﹤0.01% |
+4,417
| New | +$453K |
|
491
RenaissanceRe
RNR
$11.2B
| $452K | ﹤0.01% |
3,388
+2,614
| +338% | +$349K |
|
492
Boston Beer
SAM
$2.38B
| $452K | ﹤0.01% |
1,574
-4,306
| -73% | -$1.24M |
|
493
Darden Restaurants
DRI
$24.6B
| $451K | ﹤0.01% |
+4,064
| New | +$451K |
|
494
Editas Medicine
EDIT
$236M
| $448K | ﹤0.01% |
14,107
-10,775
| -43% | -$342K |
|
495
CarGurus
CARG
$3.54B
| $447K | ﹤0.01% |
+8,034
| New | +$447K |
|
496
Children's Place
PLCE
$157M
| $447K | ﹤0.01% |
3,499
-6,577
| -65% | -$840K |
|
497
Truist Financial
TFC
$58.1B
| $447K | ﹤0.01% |
9,226
-9,873
| -52% | -$478K |
|
|
TVRD
498
Tvardi Therapeutics, Inc. Common Stock
TVRD
$304M
| $447K | ﹤0.01% |
+519
| New | +$447K |
|
499
ProShares UltraShort Bloomberg Crude Oil
SCO
$121M
| $446K | ﹤0.01% |
1,652
+798
| +93% | +$215K |
|
|
RP
500
DELISTED
RealPage, Inc.
RP
| $446K | ﹤0.01% |
6,769
+491
| +8% | +$32.4K |
|