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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1401
E.W. Scripps
SSP
$257M
| $37K | ﹤0.01% |
12,760
-8,315
| -39% | -$24.1K |
|
1402
Roundhill Daily 2X Long Magnificent Seven ETF
MAGX
$100M
| $37K | ﹤0.01% |
1,203
+553
| +85% | +$17K |
|
1403
Capital Group Core Equity ETF
CGUS
$7.22B
| $36K | ﹤0.01% |
1,082
-77
| -7% | -$2.56K |
|
1404
Celldex Therapeutics
CLDX
$1.62B
| $36K | ﹤0.01% |
+2,038
| New | +$36K |
|
1405
MicroCloud Hologram
HOLO
$70.8M
| $36K | ﹤0.01% |
+1,095
| New | +$36K |
|
1406
Dorian LPG
LPG
$1.35B
| $36K | ﹤0.01% |
1,638
-9,083
| -85% | -$200K |
|
1407
PSQ Holdings
PSQH
$90M
| $36K | ﹤0.01% |
15,770
+8,664
| +122% | +$19.8K |
|
|
VLRS
1408
Controladora Vuela Compañía de Aviación
VLRS
$694M
| $36K | ﹤0.01% |
7,086
+4,210
| +146% | +$21.4K |
|
|
FNA
1409
DELISTED
Paragon 28, Inc.
FNA
| $36K | ﹤0.01% |
2,795
+2,668
| +2,101% | +$34.4K |
|
1410
CareDx
CDNA
$720M
| $35K | ﹤0.01% |
+2,008
| New | +$35K |
|
1411
Evolent Health
EVH
$1.05B
| $35K | ﹤0.01% |
3,776
-69,904
| -95% | -$648K |
|
|
PVL
1412
Permianville Royalty Trust
PVL
$66.7M
| $35K | ﹤0.01% |
22,470
+19,807
| +744% | +$30.9K |
|
1413
Ryanair
RYAAY
$31.1B
| $35K | ﹤0.01% |
842
-5,656
| -87% | -$235K |
|
1414
Vanguard S&P Small-Cap 600 ETF
VIOO
$3.04B
| $35K | ﹤0.01% |
+366
| New | +$35K |
|
1415
AXT Inc
AXTI
$169M
| $34K | ﹤0.01% |
24,502
+11,229
| +85% | +$15.6K |
|
1416
BellRing Brands
BRBR
$4.8B
| $34K | ﹤0.01% |
467
-493
| -51% | -$35.9K |
|
|
DDL
1417
Dingdong
DDL
$477M
| $34K | ﹤0.01% |
12,732
-75,469
| -86% | -$202K |
|
1418
First Financial Bankshares
FFIN
$5.12B
| $34K | ﹤0.01% |
959
-487
| -34% | -$17.3K |
|
1419
Fluor
FLR
$6.63B
| $34K | ﹤0.01% |
966
-13,473
| -93% | -$474K |
|
1420
Comstock
LODE
$143M
| $34K | ﹤0.01% |
13,992
+6,471
| +86% | +$15.7K |
|
1421
VanEck Mortgage REIT Income ETF
MORT
$332M
| $34K | ﹤0.01% |
3,080
+2,050
| +199% | +$22.6K |
|
1422
iShares MSCI Global Gold Miners ETF
RING
$2.12B
| $34K | ﹤0.01% |
+889
| New | +$34K |
|
1423
Sleep Number
SNBR
$214M
| $34K | ﹤0.01% |
+5,389
| New | +$34K |
|
1424
Udemy
UDMY
$1.08B
| $34K | ﹤0.01% |
+4,400
| New | +$34K |
|
|
ME
1425
DELISTED
23andMe Holding Co. Class A Common Stock
ME
| $34K | ﹤0.01% |
46,239
+11,740
| +34% | +$8.63K |
|