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 | |
|---|---|---|---|---|---|---|
|
TFCF
651
DELISTED
Twenty-First Century Fox, Inc. Class B
TFCF
| $248K | 0.01% |
7,808
+5,789
| +287% | +$184K |
|
652
Henry Schein
HSIC
$8.32B
| $247K | 0.01% |
3,720
-2,744
| -42% | -$182K |
|
|
SVU
653
DELISTED
SUPERVALU Inc.
SVU
| $242K | 0.01% |
8,968
+8,162
| +1,013% | +$220K |
|
654
HF Sinclair
DINO
$9.81B
| $241K | 0.01% |
+8,525
| New | +$241K |
|
655
Editas Medicine
EDIT
$268M
| $241K | 0.01% |
10,822
+4,036
| +59% | +$89.9K |
|
656
Open Text
OTEX
$9.52B
| $238K | 0.01% |
+7,007
| New | +$238K |
|
|
FIT
657
DELISTED
Fitbit, Inc. Class A common stock
FIT
| $236K | 0.01% |
39,910
+5,463
| +16% | +$32.3K |
|
|
SBNY
658
DELISTED
Signature Bank
SBNY
| $236K | 0.01% |
+1,596
| New | +$236K |
|
659
Cimpress
CMPR
$1.54B
| $235K | 0.01% |
+2,738
| New | +$235K |
|
660
Kraft Heinz
KHC
$31B
| $235K | 0.01% |
+2,598
| New | +$235K |
|
661
Saic
SAIC
$4.72B
| $232K | 0.01% |
3,129
+2,836
| +968% | +$210K |
|
|
NTRI
662
DELISTED
NutriSystem, Inc.
NTRI
| $229K | 0.01% |
+4,130
| New | +$229K |
|
663
Regions Financial
RF
$24.3B
| $227K | 0.01% |
+15,661
| New | +$227K |
|
664
TD Synnex
SNX
$12.5B
| $227K | 0.01% |
4,060
+3,656
| +905% | +$204K |
|
|
LEAF
665
DELISTED
Leaf Group Ltd.
LEAF
| $226K | 0.01% |
30,147
+27,974
| +1,287% | +$210K |
|
666
Aqua Metals
AQMS
$5.88M
| $225K | 0.01% |
+58
| New | +$225K |
|
667
Gogo Inc
GOGO
$1.19B
| $225K | 0.01% |
20,531
+18,639
| +985% | +$204K |
|
668
Tri Pointe Homes
TPH
$3.08B
| $225K | 0.01% |
17,953
-29,293
| -62% | -$367K |
|
669
Gaming and Leisure Properties
GLPI
$13.3B
| $223K | 0.01% |
6,684
-63
| -0.9% | -$2.1K |
|
670
IAC Inc
IAC
$3.02B
| $223K | 0.01% |
+16,932
| New | +$223K |
|
|
ARAV
671
DELISTED
Aravive, Inc. Common Stock
ARAV
| $222K | 0.01% |
+1,739
| New | +$222K |
|
|
INTX
672
DELISTED
Intersections, Inc.
INTX
| $222K | 0.01% |
55,338
+32,816
| +146% | +$132K |
|
673
Pegasystems
PEGA
$10.2B
| $221K | 0.01% |
10,080
+7,040
| +232% | +$154K |
|
|
HTO
674
H2O America Common Stock
HTO
$1.72B
| $221K | 0.01% |
4,599
+4,023
| +698% | +$193K |
|
675
Banco Santander
SAN
$150B
| $220K | 0.01% |
37,846
-77,182
| -67% | -$449K |
|