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
|
+$44.9M |
| 2 |
iShares Russell 2000 ETF
IWM
|
+$31.7M |
| 3 |
TWX
Time Warner Inc
TWX
|
+$26.1M |
| 4 |
Booking.com
BKNG
|
+$21.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$18.2M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$42.8M |
| 2 |
Amgen
AMGN
|
+$32.3M |
| 3 |
Baidu
BIDU
|
+$21.9M |
| 4 |
Micron Technology
MU
|
+$21.2M |
| 5 |
Alphabet (Google) Class A
GOOGL
|
+$17.7M |
Sector Composition
| 1 | Consumer Discretionary | 21.41% |
| 2 | Technology | 19.71% |
| 3 | Communication Services | 17.68% |
| 4 | Healthcare | 6.08% |
| 5 | Financials | 5.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
iShares US Broker-Dealers & Securities Exchanges ETF
IAI
$1.55B
| $169K | 0.01% |
+2,967
| New | +$169K |
|
702
Coca-Cola
KO
$292B
| $169K | 0.01% |
+3,776
| New | +$169K |
|
703
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$51.6M
| $168K | 0.01% |
12
-45
| -79% | -$630K |
|
704
O-I Glass
OI
$1.98B
| $168K | 0.01% |
+6,684
| New | +$168K |
|
705
Telecom Argentina
TEO
$3.28B
| $168K | 0.01% |
5,475
+2,844
| +108% | +$87.3K |
|
706
Toro Company
TTC
$7.74B
| $168K | 0.01% |
+2,709
| New | +$168K |
|
|
KRA
707
DELISTED
Kraton Corporation
KRA
| $167K | 0.01% |
4,141
+3,578
| +636% | +$144K |
|
|
OAK
708
DELISTED
OAKTREE CAPITAL GROUP, LLC
OAK
| $167K | 0.01% |
+3,569
| New | +$167K |
|
709
Dynagas LNG Partners
DLNG
$139M
| $165K | 0.01% |
11,838
+5,978
| +102% | +$83.3K |
|
|
VGR
710
DELISTED
Vector Group Ltd.
VGR
| $165K | 0.01% |
12,561
-8,191
| -39% | -$108K |
|
711
Green Dot
GDOT
$785M
| $164K | 0.01% |
3,326
+3,273
| +6,175% | +$161K |
|
|
CBPO
712
DELISTED
China Biologic Products Holdings, Inc.
CBPO
| $164K | 0.01% |
+1,781
| New | +$164K |
|
713
EPAM Systems
EPAM
$8.95B
| $163K | 0.01% |
+1,863
| New | +$163K |
|
|
XIN
714
DELISTED
Xinyuan Real Estate
XIN
| $161K | 0.01% |
+2,836
| New | +$161K |
|
|
AZUL
715
DELISTED
Azul
AZUL
| $160K | 0.01% |
+5,864
| New | +$160K |
|
|
FMI
716
DELISTED
Foundation Medicine, Inc.
FMI
| $160K | 0.01% |
3,987
+3,041
| +321% | +$122K |
|
717
American Vanguard Corp
AVD
$151M
| $159K | 0.01% |
6,949
+5,159
| +288% | +$118K |
|
718
Etsy
ETSY
$5.59B
| $159K | 0.01% |
9,448
-41,671
| -82% | -$701K |
|
|
EGRX
719
DELISTED
Eagle Pharmaceuticals, Inc.
EGRX
| $159K | 0.01% |
+2,681
| New | +$159K |
|
|
TCO
720
DELISTED
Taubman Centers Inc.
TCO
| $159K | 0.01% |
3,219
+2,041
| +173% | +$101K |
|
721
Diageo
DEO
$58.3B
| $158K | 0.01% |
+1,200
| New | +$158K |
|
722
Veracyte
VCYT
$2.48B
| $158K | 0.01% |
18,034
+9,294
| +106% | +$81.4K |
|
|
TECD
723
DELISTED
Tech Data Corp
TECD
| $157K | 0.01% |
+1,775
| New | +$157K |
|
724
Acuity Brands
AYI
$10.2B
| $156K | 0.01% |
911
-6,329
| -87% | -$1.08M |
|
725
Sociedad Química y Minera de Chile
SQM
$12B
| $156K | 0.01% |
2,820
-11,692
| -81% | -$647K |
|