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 | |
|---|---|---|---|---|---|---|
751
Marqeta
MQ
$2.68B
| $365K | ﹤0.01% |
52,328
+9,913
| +23% | +$69.1K |
|
752
Invesco DB US Dollar Index Bearish Fund
UDN
$147M
| $365K | ﹤0.01% |
+19,835
| New | +$365K |
|
753
Archer Aviation
ACHR
$5.48B
| $361K | ﹤0.01% |
+58,804
| New | +$361K |
|
754
Cenovus Energy
CVE
$30.4B
| $361K | ﹤0.01% |
21,722
-62,519
| -74% | -$1.04M |
|
755
Intellia Therapeutics
NTLA
$1.23B
| $358K | ﹤0.01% |
+11,751
| New | +$358K |
|
756
Armstrong World Industries
AWI
$8.61B
| $357K | ﹤0.01% |
3,633
+3,599
| +10,585% | +$354K |
|
757
AeroVironment
AVAV
$12.1B
| $356K | ﹤0.01% |
+2,829
| New | +$356K |
|
758
News Corp Class A
NWSA
$16.6B
| $355K | ﹤0.01% |
+14,500
| New | +$355K |
|
|
HOLI
759
DELISTED
Hollsys Automation Technologies INTERNATIONAL, LTD. COMMON (British Virgin Island)
HOLI
| $355K | ﹤0.01% |
13,496
+5,141
| +62% | +$135K |
|
760
Catalyst Pharmaceutical
CPRX
$2.48B
| $354K | ﹤0.01% |
21,074
+20,207
| +2,331% | +$339K |
|
761
Rollins
ROL
$28.2B
| $354K | ﹤0.01% |
+8,118
| New | +$354K |
|
762
Oaktree Specialty Lending
OCSL
$1.22B
| $351K | ﹤0.01% |
+17,223
| New | +$351K |
|
763
Vanguard FTSE Emerging Markets ETF
VWO
$100B
| $351K | ﹤0.01% |
8,559
+3,964
| +86% | +$163K |
|
|
BLUE
764
DELISTED
bluebird bio
BLUE
| $349K | ﹤0.01% |
12,663
+128
| +1% | +$3.53K |
|
765
Hanesbrands
HBI
$2.25B
| $349K | ﹤0.01% |
78,290
-140,809
| -64% | -$628K |
|
766
Black Stone Minerals
BSM
$2.67B
| $348K | ﹤0.01% |
+21,867
| New | +$348K |
|
767
El Pollo Loco
LOCO
$313M
| $347K | ﹤0.01% |
39,401
+35,951
| +1,042% | +$317K |
|
768
Garrett Motion
GTX
$2.69B
| $346K | ﹤0.01% |
35,788
-170,649
| -83% | -$1.65M |
|
769
Ramaco Resources Class A
METC
$1.59B
| $346K | ﹤0.01% |
20,864
+20,683
| +11,427% | +$343K |
|
770
Kimberly-Clark
KMB
$43B
| $343K | ﹤0.01% |
2,830
-11,852
| -81% | -$1.44M |
|
|
GOL
771
DELISTED
Gol Linhas Aéreas Inteligentes S.A. American Depositary Shares (Each representing Ten Preferred Shares)
GOL
| $343K | ﹤0.01% |
94,878
+29,915
| +46% | +$108K |
|
772
Camden Property Trust
CPT
$11.8B
| $342K | ﹤0.01% |
+3,446
| New | +$342K |
|
773
The Honest Company
HNST
$440M
| $342K | ﹤0.01% |
103,888
+45,340
| +77% | +$149K |
|
774
Victoria's Secret
VSCO
$2.17B
| $341K | ﹤0.01% |
+12,854
| New | +$341K |
|
775
Toast
TOST
$23.8B
| $340K | ﹤0.01% |
+18,623
| New | +$340K |
|