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 |
Apple
AAPL
|
+$32.1M |
| 2 |
Bausch Health
BHC
|
+$18.4M |
| 3 |
GMCR
KEURIG GREEN MTN INC
GMCR
|
+$17.9M |
| 4 |
Chipotle Mexican Grill
CMG
|
+$14.9M |
| 5 |
Amazon
AMZN
|
+$13M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$13.7M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$12.1M |
| 4 |
Netflix
NFLX
|
+$10.7M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.7M |
Sector Composition
| 1 | Consumer Discretionary | 17.29% |
| 2 | Healthcare | 13.74% |
| 3 | Technology | 12.76% |
| 4 | Communication Services | 12.12% |
| 5 | Industrials | 10.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Vanguard Total Stock Market ETF
VTI
$543B
| $188K | 0.01% |
+1,812
| New | +$188K |
|
|
BOJA
502
DELISTED
Bojangles', Inc. Common Stock
BOJA
| $188K | 0.01% |
11,860
+8,783
| +285% | +$139K |
|
503
EPAM Systems
EPAM
$8.57B
| $185K | 0.01% |
2,365
-2,128
| -47% | -$166K |
|
504
GATX Corp
GATX
$6.08B
| $185K | 0.01% |
+4,369
| New | +$185K |
|
505
Lesaka Technologies
LSAK
$344M
| $185K | 0.01% |
13,712
+13,681
| +44,132% | +$185K |
|
|
PTR
506
DELISTED
PETROCHINA COMPANY LIMITED ADS (REP 100 H SHARES)
PTR
| $185K | 0.01% |
2,821
+1,096
| +64% | +$71.9K |
|
507
ProShares Ultra Silver
AGQ
$813M
| $183K | 0.01% |
6,774
-4,090
| -38% | -$110K |
|
|
WCG
508
DELISTED
Wellcare Health Plans, Inc.
WCG
| $183K | 0.01% |
2,350
-1,108
| -32% | -$86.3K |
|
509
Hexcel
HXL
$4.91B
| $182K | 0.01% |
3,936
-621
| -14% | -$28.7K |
|
510
Texas Instruments
TXN
$166B
| $180K | 0.01% |
+3,289
| New | +$180K |
|
|
ONCE
511
DELISTED
Spark Therapeutics, Inc. Common Stock
ONCE
| $180K | 0.01% |
+3,990
| New | +$180K |
|
|
DSKY
512
DELISTED
IDREAMSKY TECHNOLOGY LTD ADS REPTSG SHS CL A
DSKY
| $180K | 0.01% |
13,469
+12,782
| +1,861% | +$171K |
|
|
NILE
513
DELISTED
Blue Nile, Inc.
NILE
| $179K | 0.01% |
+4,846
| New | +$179K |
|
514
Herc Holdings
HRI
$4.34B
| $178K | 0.01% |
4,173
+3,165
| +314% | +$135K |
|
515
Vicor
VICR
$2.39B
| $178K | 0.01% |
19,614
+3,814
| +24% | +$34.6K |
|
|
MDCO
516
DELISTED
Medicines Co
MDCO
| $178K | 0.01% |
4,784
-1,687
| -26% | -$62.8K |
|
517
Mohawk Industries
MHK
$8.24B
| $177K | 0.01% |
+935
| New | +$177K |
|
|
AMAG
518
DELISTED
AMAG Pharmaceuticals, Inc.
AMAG
| $177K | 0.01% |
5,879
-40
| -0.7% | -$1.2K |
|
|
GWR
519
DELISTED
Genesee & Wyoming Inc.
GWR
| $177K | 0.01% |
3,305
-4,652
| -58% | -$249K |
|
520
Brunswick
BC
$4.21B
| $176K | 0.01% |
+3,485
| New | +$176K |
|
|
EXPR
521
DELISTED
Express, Inc.
EXPR
| $176K | 0.01% |
511
-75
| -13% | -$25.8K |
|
522
Meritage Homes
MTH
$5.37B
| $175K | 0.01% |
10,348
+8,320
| +410% | +$141K |
|
|
CLVS
523
DELISTED
Clovis Oncology, Inc.
CLVS
| $175K | 0.01% |
5,021
+3,955
| +371% | +$138K |
|
524
Bank of New York Mellon
BK
$76.1B
| $174K | 0.01% |
4,232
-1,547
| -27% | -$63.6K |
|
|
UNIT
525
Uniti Group
UNIT
$1.66B
| $174K | 0.01% |
9,327
+8,815
| +1,722% | +$164K |
|