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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
626
C4 Therapeutics
CCCC
$194M
| $536K | ﹤0.01% |
+95,020
| New | +$536K |
|
627
MakeMyTrip
MMYT
$9.58B
| $536K | ﹤0.01% |
11,428
+5,582
| +95% | +$262K |
|
628
Premier
PINC
$2.21B
| $534K | ﹤0.01% |
23,908
+13,436
| +128% | +$300K |
|
629
New Oriental
EDU
$8.93B
| $533K | ﹤0.01% |
+7,282
| New | +$533K |
|
630
United States Copper Index Fund
CPER
$223M
| $532K | ﹤0.01% |
22,063
+15,739
| +249% | +$380K |
|
631
HF Sinclair
DINO
$9.68B
| $531K | ﹤0.01% |
9,571
+1,450
| +18% | +$80.4K |
|
|
HIBB
632
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $530K | ﹤0.01% |
7,365
+4,012
| +120% | +$289K |
|
633
Jabil
JBL
$23B
| $529K | ﹤0.01% |
4,156
-2,689
| -39% | -$342K |
|
634
Skywest
SKYW
$4.41B
| $527K | ﹤0.01% |
10,105
-7,124
| -41% | -$372K |
|
635
Methanex
MEOH
$3.08B
| $526K | ﹤0.01% |
+11,114
| New | +$526K |
|
636
Chefs' Warehouse
CHEF
$2.69B
| $517K | ﹤0.01% |
+17,590
| New | +$517K |
|
637
Saic
SAIC
$4.9B
| $515K | ﹤0.01% |
4,148
+2,496
| +151% | +$310K |
|
638
Charles River Laboratories
CRL
$7.86B
| $511K | ﹤0.01% |
+2,162
| New | +$511K |
|
639
Carlisle Companies
CSL
$16.8B
| $508K | ﹤0.01% |
+1,628
| New | +$508K |
|
640
iShares Core US Aggregate Bond ETF
AGG
$132B
| $507K | ﹤0.01% |
5,116
+2,341
| +84% | +$232K |
|
641
TORM
TRMD
$2.16B
| $506K | ﹤0.01% |
16,640
+4,410
| +36% | +$134K |
|
642
Couchbase
BASE
$1.35B
| $505K | ﹤0.01% |
+22,431
| New | +$505K |
|
643
Invesco Mortgage Capital
IVR
$506M
| $503K | ﹤0.01% |
56,828
+40,624
| +251% | +$360K |
|
644
Structure Therapeutics
GPCR
$1.2B
| $502K | ﹤0.01% |
+12,322
| New | +$502K |
|
645
Anywhere Real Estate
HOUS
$763M
| $502K | ﹤0.01% |
+61,976
| New | +$502K |
|
646
Taboola.com
TBLA
$1.01B
| $500K | ﹤0.01% |
115,671
+87,130
| +305% | +$377K |
|
647
Baytex Energy
BTE
$1.83B
| $498K | ﹤0.01% |
150,168
+68,388
| +84% | +$227K |
|
648
iHeartMedia
IHRT
$356M
| $498K | ﹤0.01% |
186,708
-110,980
| -37% | -$296K |
|
649
Klaviyo
KVYO
$9.54B
| $498K | ﹤0.01% |
17,959
+10,031
| +127% | +$278K |
|
|
AZPN
650
DELISTED
Aspen Technology Inc
AZPN
| $498K | ﹤0.01% |
2,263
-1,869
| -45% | -$411K |
|