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 | |
|---|---|---|---|---|---|---|
676
Assured Guaranty
AGO
$3.96B
| $455K | ﹤0.01% |
6,082
+5,344
| +724% | +$400K |
|
677
Otis Worldwide
OTIS
$35.1B
| $452K | ﹤0.01% |
5,059
+1,709
| +51% | +$153K |
|
678
Canadian Pacific Kansas City
CP
$69.5B
| $449K | ﹤0.01% |
5,690
-20,322
| -78% | -$1.6M |
|
679
XP
XP
$9.96B
| $448K | ﹤0.01% |
+17,217
| New | +$448K |
|
680
Cedar Fair
FUN
$2.2B
| $447K | ﹤0.01% |
11,240
+5,808
| +107% | +$231K |
|
681
Citizens Financial Group
CFG
$22.3B
| $446K | ﹤0.01% |
+13,471
| New | +$446K |
|
682
Levi Strauss
LEVI
$8.74B
| $445K | ﹤0.01% |
26,927
+20,481
| +318% | +$338K |
|
683
Open Text
OTEX
$8.96B
| $443K | ﹤0.01% |
10,545
+4,412
| +72% | +$185K |
|
|
SA
684
Seabridge Gold
SA
$1.9B
| $442K | ﹤0.01% |
36,499
-9,093
| -20% | -$110K |
|
685
Uranium Energy
UEC
$5.35B
| $442K | ﹤0.01% |
+69,173
| New | +$442K |
|
686
CCC Intelligent Solutions
CCCS
$6.33B
| $435K | ﹤0.01% |
38,225
+34,234
| +858% | +$390K |
|
687
Crown Castle
CCI
$41.6B
| $433K | ﹤0.01% |
+3,765
| New | +$433K |
|
688
LGI Homes
LGIH
$1.45B
| $433K | ﹤0.01% |
3,258
-4,510
| -58% | -$599K |
|
689
Blink Charging
BLNK
$143M
| $432K | ﹤0.01% |
+127,662
| New | +$432K |
|
690
Invesco S&P 500 High Beta ETF
SPHB
$450M
| $432K | ﹤0.01% |
+5,254
| New | +$432K |
|
691
Cogent Communications
CCOI
$1.77B
| $431K | ﹤0.01% |
5,679
+3,842
| +209% | +$292K |
|
692
Global X Lithium & Battery Tech ETF
LIT
$1.15B
| $431K | ﹤0.01% |
+8,478
| New | +$431K |
|
|
JMIA
693
Jumia Technologies
JMIA
$1.19B
| $429K | ﹤0.01% |
121,780
-79,839
| -40% | -$281K |
|
694
Leggett & Platt
LEG
$1.34B
| $427K | ﹤0.01% |
16,347
-9,822
| -38% | -$257K |
|
695
D.R. Horton
DHI
$54B
| $426K | ﹤0.01% |
+2,809
| New | +$426K |
|
696
Loews
L
$20.3B
| $426K | ﹤0.01% |
6,131
+3,209
| +110% | +$223K |
|
697
Factset
FDS
$14B
| $423K | ﹤0.01% |
+888
| New | +$423K |
|
698
Nabors Industries
NBR
$619M
| $423K | ﹤0.01% |
5,183
-2,857
| -36% | -$233K |
|
699
iShares National Muni Bond ETF
MUB
$39.5B
| $422K | ﹤0.01% |
3,897
+1,116
| +40% | +$121K |
|
|
CRON
700
Cronos Group
CRON
$988M
| $421K | ﹤0.01% |
201,821
+74,814
| +59% | +$156K |
|