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
|
$92M |
| 2 |
Walt Disney
DIS
|
$25.4M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
$12.8M |
| 4 |
Baidu
BIDU
|
$12.2M |
| 5 |
RHT
Red Hat Inc
RHT
|
$11.6M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
$61.4M |
| 2 |
Amazon
AMZN
|
$59.6M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$35.5M |
| 4 |
Apple
AAPL
|
$19.6M |
| 5 |
Financial Select Sector SPDR Fund
XLF
|
$18.2M |
Sector Composition
| 1 | Communication Services | 16.98% |
| 2 | Technology | 12.42% |
| 3 | Healthcare | 10.02% |
| 4 | Consumer Discretionary | 8.53% |
| 5 | Industrials | 6.02% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
AVP
601
DELISTED
Avon Products, Inc.
AVP
| $252K | ﹤0.01% |
86,030
+76,417
| +795% | +$224K |
|
602
Element Solutions
ESI
$6.33B
| $251K | ﹤0.01% |
24,885
+21,100
| +557% | +$213K |
|
603
Magna International
MGA
$12.9B
| $249K | ﹤0.01% |
5,116
-14,215
| -74% | -$692K |
|
604
Ultragenyx Pharmaceutical
RARE
$3.07B
| $249K | ﹤0.01% |
+3,593
| New | +$249K |
|
605
Calix
CALX
$3.96B
| $248K | ﹤0.01% |
32,318
-365
| -1% | -$2.8K |
|
|
EPAY
606
DELISTED
Bottomline Technologies Inc
EPAY
| $247K | ﹤0.01% |
4,949
-3,875
| -44% | -$193K |
|
|
PER
607
DELISTED
SANDRIDGE PERMIAN TRUST
PER
| $247K | ﹤0.01% |
105,520
+23,843
| +29% | +$55.8K |
|
608
Direxion Daily Financial Bull 3x Shares
FAS
$2.59B
| $246K | ﹤0.01% |
3,978
-61,677
| -94% | -$3.81M |
|
609
Wintrust Financial
WTFC
$9.34B
| $246K | ﹤0.01% |
+3,655
| New | +$246K |
|
610
National Fuel Gas
NFG
$7.82B
| $244K | ﹤0.01% |
4,004
-16
| -0.4% | -$975 |
|
611
Melco Resorts & Entertainment
MLCO
$3.8B
| $241K | ﹤0.01% |
10,675
-13,383
| -56% | -$302K |
|
612
Thermo Fisher Scientific
TMO
$186B
| $240K | ﹤0.01% |
880
-389
| -31% | -$106K |
|
613
FTAI Aviation
FTAI
$15.8B
| $239K | ﹤0.01% |
16,401
+11,267
| +219% | +$164K |
|
614
TherapeuticsMD
TXMD
$12.5M
| $239K | ﹤0.01% |
+982
| New | +$239K |
|
|
AGEN
615
Agenus
AGEN
$138M
| $238K | ﹤0.01% |
4,099
+3,520
| +608% | +$204K |
|
|
HEP
616
DELISTED
Holly Energy Partners, L.P.
HEP
| $236K | ﹤0.01% |
8,781
-2,331
| -21% | -$62.6K |
|
617
Williams Companies
WMB
$69.9B
| $234K | ﹤0.01% |
8,157
-84,234
| -91% | -$2.42M |
|
|
TRTN
618
DELISTED
Triton International Limited
TRTN
| $234K | ﹤0.01% |
7,539
+469
| +7% | +$14.6K |
|
619
Landstar System
LSTR
$4.58B
| $233K | ﹤0.01% |
2,134
+1,567
| +276% | +$171K |
|
620
Annaly Capital Management
NLY
$14.2B
| $233K | ﹤0.01% |
+5,855
| New | +$233K |
|
|
CJ
621
DELISTED
C&J Energy Services, Inc.
CJ
| $233K | ﹤0.01% |
+15,016
| New | +$233K |
|
622
Huntsman Corp
HUN
$1.95B
| $232K | ﹤0.01% |
10,354
+8,925
| +625% | +$200K |
|
|
AQUA
623
DELISTED
Evoqua Water Technologies Corp. Common Stock
AQUA
| $231K | ﹤0.01% |
+18,365
| New | +$231K |
|
|
BNFT
624
DELISTED
Benefitfocus, Inc.
BNFT
| $231K | ﹤0.01% |
+4,669
| New | +$231K |
|
625
Radian Group
RDN
$4.79B
| $230K | ﹤0.01% |
11,094
+9,705
| +699% | +$201K |
|