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 |
Tesla
TSLA
|
+$27.1M |
| 2 |
Netflix
NFLX
|
+$24.7M |
| 3 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$20.1M |
| 4 |
TWX
Time Warner Inc
TWX
|
+$18.3M |
| 5 |
Alibaba
BABA
|
+$14.8M |
Top Sells
| 1 |
Amazon
AMZN
|
+$71.9M |
| 2 |
Micron Technology
MU
|
+$47.7M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$26.3M |
| 4 |
Boeing
BA
|
+$21M |
| 5 |
Citigroup
C
|
+$19.6M |
Sector Composition
| 1 | Consumer Discretionary | 15.64% |
| 2 | Communication Services | 14.16% |
| 3 | Technology | 12.46% |
| 4 | Financials | 10.94% |
| 5 | Healthcare | 10.33% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
NTP
851
DELISTED
Nam Tai Property Inc.
NTP
| $116K | 0.01% |
9,328
-6,662
| -42% | -$82.8K |
|
|
BPT
852
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $115K | 0.01% |
4,812
-3,556
| -42% | -$85K |
|
|
GOGL
853
DELISTED
Golden Ocean Group
GOGL
| $115K | 0.01% |
14,582
+2,762
| +23% | +$21.8K |
|
854
NETGEAR
NTGR
$842M
| $115K | 0.01% |
2,022
-15,570
| -89% | -$886K |
|
855
Old Republic International
ORI
$10.1B
| $115K | 0.01% |
+5,366
| New | +$115K |
|
|
IBKC
856
DELISTED
IBERIABANK Corp
IBKC
| $115K | 0.01% |
1,487
-2,394
| -62% | -$185K |
|
|
COL
857
DELISTED
Rockwell Collins
COL
| $115K | 0.01% |
853
-7,491
| -90% | -$1.01M |
|
|
HABT
858
DELISTED
The Habit Restaurants, Inc. - Class A
HABT
| $114K | 0.01% |
12,974
+12,073
| +1,340% | +$106K |
|
859
Core Laboratories
CLB
$594M
| $113K | 0.01% |
+1,053
| New | +$113K |
|
|
CRCM
860
DELISTED
CARE.COM, INC.
CRCM
| $113K | 0.01% |
6,969
+5,886
| +543% | +$95.4K |
|
|
HPP
861
Hudson Pacific Properties
HPP
$1.12B
| $112K | ﹤0.01% |
+3,464
| New | +$112K |
|
862
Sensata Technologies
ST
$4.69B
| $112K | ﹤0.01% |
2,172
-1,466
| -40% | -$75.6K |
|
|
TRVG
863
trivago
TRVG
$231M
| $112K | ﹤0.01% |
3,244
-9,632
| -75% | -$333K |
|
864
Advanced Drainage Systems
WMS
$11.4B
| $112K | ﹤0.01% |
4,360
-9,568
| -69% | -$246K |
|
865
American Superconductor
AMSC
$2.47B
| $111K | ﹤0.01% |
19,211
-63,883
| -77% | -$369K |
|
|
ANSS
866
DELISTED
Ansys
ANSS
| $111K | ﹤0.01% |
709
-301
| -30% | -$47.1K |
|
867
Amplify Mobile Payments ETF
IPAY
$273M
| $111K | ﹤0.01% |
3,068
+2,542
| +483% | +$92K |
|
868
M/I Homes
MHO
$4.14B
| $111K | ﹤0.01% |
+3,487
| New | +$111K |
|
869
Xcel Energy
XEL
$43.1B
| $111K | ﹤0.01% |
2,459
+1,825
| +288% | +$82.4K |
|
870
InfraCap MLP ETF
AMZA
$403M
| $109K | ﹤0.01% |
1,604
-1,158
| -42% | -$78.7K |
|
871
CEVA Inc
CEVA
$570M
| $109K | ﹤0.01% |
3,018
+2,903
| +2,524% | +$105K |
|
872
DigitalBridge
DBRG
$2.24B
| $109K | ﹤0.01% |
+4,884
| New | +$109K |
|
873
Hyatt Hotels
H
$13.9B
| $109K | ﹤0.01% |
1,442
-4,687
| -76% | -$354K |
|
874
Trupanion
TRUP
$1.87B
| $109K | ﹤0.01% |
3,674
+565
| +18% | +$16.8K |
|
|
LCI
875
DELISTED
Lannett Company, Inc.
LCI
| $109K | ﹤0.01% |
1,712
-3,390
| -66% | -$216K |
|