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 |
Goldman Sachs
GS
|
+$38.4M |
| 2 |
Micron Technology
MU
|
+$23.7M |
| 3 |
NVIDIA
NVDA
|
+$23.6M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$21.7M |
| 5 |
Wells Fargo
WFC
|
+$20.4M |
Top Sells
| 1 |
Citigroup
C
|
+$21.6M |
| 2 |
Apple
AAPL
|
+$17.2M |
| 3 |
Invesco QQQ Trust
QQQ
|
+$13.3M |
| 4 |
Eli Lilly
LLY
|
+$9.69M |
| 5 |
Mastercard
MA
|
+$8.27M |
Sector Composition
| 1 | Technology | 14.2% |
| 2 | Communication Services | 13.46% |
| 3 | Consumer Discretionary | 12.76% |
| 4 | Healthcare | 12.43% |
| 5 | Financials | 10.75% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
726
Scotiabank
BNS
$80.3B
| $188K | 0.01% |
3,210
-2,754
| -46% | -$161K |
|
727
Darden Restaurants
DRI
$22B
| $188K | 0.01% |
2,247
+2,047
| +1,024% | +$171K |
|
728
Ormat Technologies
ORA
$5.69B
| $188K | 0.01% |
+3,307
| New | +$188K |
|
729
Semtech
SMTC
$5.45B
| $187K | 0.01% |
5,533
+3,799
| +219% | +$128K |
|
|
KTWO
730
DELISTED
K2M Group Holdings, Inc
KTWO
| $187K | 0.01% |
+9,135
| New | +$187K |
|
731
BGC Group
BGC
$4.68B
| $186K | 0.01% |
25,502
+21,793
| +588% | +$159K |
|
|
ORBK
732
DELISTED
Orbotech Ltd
ORBK
| $186K | 0.01% |
5,782
+5,689
| +6,117% | +$183K |
|
733
Etsy
ETSY
$6.37B
| $184K | 0.01% |
17,310
+3,794
| +28% | +$40.3K |
|
|
INFN
734
DELISTED
Infinera Corporation Common Stock
INFN
| $184K | 0.01% |
+18,008
| New | +$184K |
|
|
AKRX
735
DELISTED
Akorn, Inc.
AKRX
| $184K | 0.01% |
7,646
+6,693
| +702% | +$161K |
|
736
ProShares Ultra Financials
UYG
$898M
| $183K | 0.01% |
5,661
+4,665
| +468% | +$151K |
|
737
ProShares UltraShort Yen
YCS
$24.3M
| $183K | 0.01% |
10,128
+8,856
| +696% | +$160K |
|
|
CVO
738
DELISTED
Cenevo, Inc.
CVO
| $182K | 0.01% |
+36,328
| New | +$182K |
|
|
DISCA
739
DELISTED
Discovery, Inc. Series A Common Stock
DISCA
| $182K | 0.01% |
6,264
+6,144
| +5,120% | +$179K |
|
|
ZEN
740
DELISTED
ZENDESK INC
ZEN
| $181K | 0.01% |
6,485
-1,584
| -20% | -$44.2K |
|
|
MYCC
741
DELISTED
ClubCorp Holdings, Inc.
MYCC
| $181K | 0.01% |
11,283
-15,899
| -58% | -$255K |
|
742
Teradata
TDC
$2.1B
| $180K | 0.01% |
5,785
+5,523
| +2,108% | +$172K |
|
|
EGN
743
DELISTED
Energen
EGN
| $180K | 0.01% |
3,307
+940
| +40% | +$51.2K |
|
|
SIVB
744
DELISTED
SVB Financial Group
SIVB
| $179K | 0.01% |
+965
| New | +$179K |
|
745
PPG Industries
PPG
$24.5B
| $178K | 0.01% |
+1,699
| New | +$178K |
|
|
JUNO
746
DELISTED
Juno Therapeutics, Inc.
JUNO
| $178K | 0.01% |
8,048
-6,446
| -44% | -$143K |
|
|
VER
747
DELISTED
VEREIT, Inc.
VER
| $177K | 0.01% |
+4,189
| New | +$177K |
|
|
FMSA
748
DELISTED
Fairmount Santrol Holdings Inc.
FMSA
| $175K | 0.01% |
+23,887
| New | +$175K |
|
749
Direxion Daily S&P Biotech Bull 3X Shares
LABU
$693M
| $174K | 0.01% |
+182
| New | +$174K |
|
750
Liberty Global Class C
LBTYK
$4.11B
| $174K | 0.01% |
4,975
+4,295
| +632% | +$150K |
|